137- Janjua, B., M. L. Iu, Z. Leger, Z. Yan, and A. S. Helmy. "133 fs Pulses generated in Colliding-Pulse Mode-Locking, Enable Record χ2 Frequency Conversion." Conference on Lasers and Electro-Optics (CLEO), pp. 1-2. IEEE, 2023.

136- Janjua, B., Zacharie M. Leger, Meng Lon Iu, Arsalan Khan, and Amr S. Helmy. "Widely Tunable Frequency Conversion with Self-Pumped Bragg Reflection Photonic Crystal Lasers." IEEE Photonics Conference (IPC), pp. 1-2. IEEE, 2023.

135- Papangelakis, Georgios, Han Liu, Bhashyam Balaji, Phillip Blakey, and Amr S. Helmy. "Receiver Operator Characteristic Enhancement by Overcomming the Hardware Temporal Resolution Limit Using Nonlocal Effects in LiDAR." IEEE Sensors Applications Symposium (SAS), pp. 1-6. IEEE, 2023.

134- Ding, Xiangyan, Jing Ma, Liying Tan, Amr S. Helmy, and Dongpeng Kang. "Heterogeneously coupled waveguides for pure single photon generation." Thirteenth International Conference on Information Optics and Photonics (CIOP), vol. 12478, pp. 743-747. SPIE, 2022.

133- Blakey, Phillip S., Han Liu, G. Papangelakis, M. L. Iu, Y. Zhang, Z. M. Léger, and Amr S. Helmy. ''Quantum enhanced LIDAR using nonlocal dispersion''. Conference on Lasers and Electro-Optics (CLEO): Science and Innovations, pp. STu5O-4. Optica Publishing Group, 2022.

132- Liu, Han, Yutian Zhang, Georgios Papangelakis, and Amr S. Helmy. "All-Fiber Quantum-Inspired LiDAR with> 100dB Noise Rejection and Single Photon Sensitivity." IEEE Photonics Conference (IPC), pp. 1-2. IEEE, 2022.

131- Yan, Zhizhong, H. Liu, M. L. Iu, P. Blakey, Y. Akasaka, T. Ikeuchi, and Amr S. Helmy. ''Virtually Noiseless Phase Sensitive Amplifier using χ 2 in AlGaAs with 30 dB Gain''. Conference on Lasers and Electro-Optics (CLEO), pp. 1-2. IEEE, 2022.

130- B. Janjua, M. L. Iu, P. Charles, E. Chen, Z. Yan and A. S. Helmy, "Bragg waveguide DFB lasers," IEEE Photonics Conference (IPC), pp. 1-2. IEEE, 2021.

129- L. Han and A. S. Helmy, "Joint Measurement of Time-frequency Entanglement," Conference on Lasers and Electro-Optics (CLEO), pp. 1-2. IEEE, 2021.

128- X. Ding, J. Ma, L. Tan, A. S. Helmy and D. Kang, "Uncorrelated photon pair generation in asymmetric heterogeneously coupled waveguides,'' Conference on Lasers and Electro-Optics (CLEO): QELS_Fundamental Science, pp. JW1A-175. Optica Publishing Group, 2021.

127- C. Lin, P. -H. Chang, Y. Su and A. S. Helmy, "Monolithic Amorphous Hybrid Plasmonic Circuits," Conference on Lasers and Electro-Optics (CLEO), Science and Innovations, pp. STh4B-7. Optica Publishing Group, 2021.

126- L. Han and A. S. Helmy, "Phase-insensitive Target Detection and Ranging Aided by Continuous-wave Photon-pair Sources," Conference on Lasers and Electro-Optics (CLEO), Science and Innovations, pp. JTh4C-2. Optica Publishing Group, 2021.

125- C. Lin, P. -H. Chang and A. S. Helmy, "Record Schottky detector sensitiviy using hybrid plasmonic supermode hybridization," Conference on Lasers and Electro-Optics (CLEO), Science and Innovations, pp. SM1D-1. Optica Publishing Group, 2021.

124- B. G. Eleftheriades, E. E. Storey and A. S. Helmy, "Thin-Film Thermophoresis in Photoninc Band Gap Fibers for Sub-nanoMolar Raman Sensing Sensitivity," 2021 Conference on Lasers and Electro-Optics (CLEO), pp. 1-2. IEEE, 2021..

123- Amr Helmy. "Advances in monolithic quantum photonics for sensing." In Photonics for Quantum 2020, vol. 11918, p. 1191807. SPIE, 2021.

122- Helmy, Amr S., Charles Lin, PoHan Chang, and Yiwen Su. "A unified monolithic plasmonic platform for athermal circuits." In Integrated Optics: Devices, Materials, and Technologies XXV, vol. 11689, p. 1168904. SPIE, 2021.

121- Lin, Charles, Divya Prasad, Saurabh Sinha, Brian Cline, and Amr S. Helmy. "Plasmonics: breaking the barriers of silicon photonics for high-performance chip-to-chip interconnects." IEEE International Electron Devices Meeting (IEDM), pp. 7-7. IEEE, 2020..

120- Janjua, Bilal, Meng Long Iu, Zhizhong Yan, Paul Charles, Eric Chen, and Amr S. Helmy. "Passively mode-locked Bragg lasers with~ 200 fs near transform-limited pulses at 64 GHz." IEEE Photonics Conference (IPC), pp. 1-2. IEEE, 2020.

119- Lin, Charles, Pohan Chang, Yiwen Su, and Amr S. Helmy. "Monolithic Plasmonic Transceiver Architecture." IEEE Photonics Conference (IPC), pp. 1-2. IEEE, 2020.

118- Iu, Meng Lon, Nima Zareian, Bilal Janjua, Paul Charles, Eric Chen, and Amr S. Helmy. "Efficient DFG via Large Effective χ 2 in Monolithic Diode Lasers." Conference on Lasers and Electro-Optics (CLEO), pp. 1-2. IEEE, 2020.

117- Janjua, B., M. L. Iu, P. Charles, E. Chen, and Amr S. Helmy. "Parametric Conversion in Compact Ring Diode Lasers." Conference on Lasers and Electro-Optics (CLEO): Science and Innovations, pp. STh3E-1. Optica Publishing Group, 2020.

116- Liu, Han, Amr Helmy, and Bhashyam Balaji. "Inspiring radar from quantum-enhanced lidar." IEEE International Radar Conference (RADAR), pp. 964-968. IEEE, 2020.

115- Yan, Zhizhong, Haoyu He, Han Liu, M. Iu, O. Ahmed, Eric Chen, Youichi Akasaka, and Amr S. Helmy. "Record High Squeezing using χ (2) in AlGaAs Chips." Conference on Lasers and Electro-Optics (CLEO): QELS_Fundamental Science, pp. FW3B-5. Optica Publishing Group, 2019.

114- Su, Yiwen, Pohan Chang, Charles Lin, and Amr S. Helmy. "Record Purcell Factor in Hybrid Plasmonic Waveguides." Conference on Lasers and Electro-Optics (CLEO): Science and Innovations, pp. SF1J-2. Optica Publishing Group, 2019.

113- Storey, Emily E., Duxuan X. Wu, and Amr S. Helmy. "Machine Learning Assisted Raman in Optofluidics for User-Independent Biofluid Diagnostics." Conference on Lasers and Electro-Optics (CLEO): Science and Innovations, pp. STu4H-1. Optica Publishing Group, 2019.

112- Helmy, Amr S. "Breaking the loss-confinement barrier in plasmonic devices (Conference Presentation)." In Integrated Optics: Design, Devices, Systems, and Applications V, vol. 11031, p. 110310N. SPIE, 2019.

111- Helmy, Amr S. "Ultra-low-noise amplification on a 100-micron-scale chip (Conference Presentation)." In Metro and Data Center Optical Networks and Short-Reach Links, vol. 10560, p. 105600L. SPIE, 2018.

110- Helmy, Amr S., Ryan Marchildon, Aharon Brodutch, Daniel Giovannini, Dongpeng Kang, and Haoyu He. "Integrated sources of non-classical light for quantum information processing on chip (Conference Presentation)." In Advances in Photonics of Quantum Computing, Memory, and Communication XI, vol. 10547, p. 105470I. SPIE, 2018.

109-Su, Yiwen, Charles Lin, Pohan Chang, and A. S. Helmy. "Efficient plasmonic integrated circuits." In Smart Photonic and Optoelectronic Integrated Circuits XIX, vol. 10107, pp. 18-21. SPIE, 2017. Invited

108-Marchildon, Ryan, and Amr S. Helmy. "Quantum interference in monolithic nanophotonics." In Quantum Sensing and Nano Electronics and Photonics XIV, vol. 10111, pp. 389-393. SPIE, 2017. Keynote

107-Firby, C. J., P. Chang, A. S. Helmy, and A. Y. Elezzabi. "High-speed polarization modulation in a hybrid ridge-plasmonic waveguide." In Ultrafast Phenomena and Nanophotonics XXI, vol. 10102, pp. 55-61. SPIE, 2017. Invited

106-Amr S. Helmy, Plasmonic integrated circuits PIERS- Shanghai, 2017. Invited

105-Amr S. Helmy, Monolithic Quantum Interference, OSA-LAOP, 2017. Invited

104-Lin, Charles, Yiwen Su, and Amr S. Helmy. "Nanoscale photonics using coupled hybrid plasmonic architectures." In Nanophotonics VI, vol. 9884, pp. 52-55. SPIE, 2016. Invited

103-Kang, Dongpeng, Ankita Anirban, and Amr S. Helmy. "Monolithic semiconductor entangled sources spanning the SCL bands." Conference on Lasers and Electro-Optics (CLEO), pp. 1-2. IEEE, 2016.

102-Amr S. Helmy and Ryan Marchildon, ‘On Chip Quantum Interference,’ Light, ChangChun (2016).Invited

101-Lin, Charles, Yiwen Su, and Amr S. Helmy. "Nanoscale photonics using coupled hybrid plasmonic architectures." In Nanophotonics VI, vol. 9884, pp. 52-55. SPIE, 2016.Invited

100-Marchildon, Ryan, Gleb Egorov, and Amr S. Helmy. "Deterministic Quantum State Separation in Integrated Photonics." In Latin America Optics and Photonics Conference, pp. LTu5D-2. Optica Publishing Group, 2016. Invited

99- Marchildon, Ryan P., and Amr S. Helmy. "Quantum state engineering in integrated couplers." Conference on Lasers and Electro-Optics (CLEO): QELS_Fundamental Science, pp. JW2A-17. Optica Publishing Group, 2015.

98- Kang, Dongpeng, Minseok Kim, Haoyu He, and Amr S. Helmy. "Entanglement diversity in monolithic waveguides." Conference on Lasers and Electro-Optics (CLEO): Applications and Technology, pp. JW2A-2. Optica Publishing Group, 2015.

97- Helmy, Amr S., and Fangxin Li. "Stable, Tuneable, All-optical Pulse Generation with 1 Hz Phase Noise." Conference on Lasers and Electro-Optics (CLEO): QELS_Fundamental Science, pp. JTh2A-36. Optica Publishing Group, 2015.

96- Rutledge, Steven A., and Amr S. Helmy. "Etch-free patterning of PEDOT: PSS for optoelectronics." Conference on Lasers and Electro-Optics (CLEO): Science and Innovations, pp. STh4G-6. Optica Publishing Group, 2015.

95- Helmy, Amr S., Siu Wai Mak, S. A. Rutledge, and J. Ramanan. "Nondestructive analysis of nanomaterials using optofluidic assisted Raman spectroscopy." In Synthesis and Photonics of Nanoscale Materials XII, vol. 9352, p. 935206. SPIE, 2015. Invited

94- Abolghasem, Payam, D. Kang, D. A. Logan, and A. S. Helmy. "Frequency conversion for infrared generation in monolithic semiconductor waveguides." In Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications XIV, vol. 9347, pp. 239-244. SPIE, 2015.
Invited

93- M. Swillam and A. S. Helmy, ‘Designing plasmonic slot waveguide networks using a semi-analytical approach,’ Photonics West, SPIE, 2015.

92- Helmy, Amr S., and F. Li. "Broadband Low Phase Noise and RF-Free Optical Pulse Generation for Hybrid Integration." In Latin America Optics and Photonics Conference, pp. LM3C-2. Optica Publishing Group, 2014.
Invited

91- Amr. S. Helmy ‘Utilizing Parametric Processes in Semiconductor Laser Diodes,’ OSA Topical – Latin America Optics and Photonics, Xi’an, 2014. Invited

90- Helmy, Amr S. "Monolithic Entangled Photon Sources Using Second Order Optical Nonlinearities." In Electrochemical Society Meeting Abstracts 225, no. 40, pp. 1476-1476. The Electrochemical Society, Inc., 2014.Invited

89- Horn, Rolf T., Piotr Kolenderski, Dongpeng Kang, Payam Abolghasem, L. G. Helt, Sergei V. Zhukovsky, Carmelo Scarcella et al. "Entanglement in a Bragg ReflectionWaveguide." Conference on Lasers and Electro-Optics (CLEO): QELS_Fundamental Science, pp. FF1D-4. Optica Publishing Group, 2014.

88- Li, Fangxin, and Amr S. Helmy. "All-optical single-side-band GHz to THz microwave sources via SOA gain engineering." Conference on Lasers and Electro-Optics (CLEO): Science and Innovations, pp. STu2G-8. Optica Publishing Group, 2014.

87- Logan, Dylan F., A. Villeneuve, M. Giguere, and Amr S. Helmy. "Mid infrared sources based on widely tunable DFG in monolithic semiconductor waveguides." Conference on Lasers and Electro-Optics (CLEO): Applications and Technology, pp. JTu4A-115. Optica Publishing Group, 2014. Invited

86- Li, Fangxin, and Amr S. Helmy. "Gain engineering for all-optical microwave and high speed pulse generation in mode-locked fiber lasers." In Integrated Optics: Devices, Materials, and Technologies XVIII, vol. 8988, pp. 58-62. SPIE, 2014. Invited

85- Logan, Dylan F., Ali B. Alamin Dow, Dmitri Stepanov, Payam Abolghasem, Nazir P. Kherani, and Amr S. Helmy. "Modal phase-matching of second-order nonlinearities at silicon-oxy-nitride interfaces in multi-layer waveguides." Conference on Lasers and Electro-Optics (CLEO): pp. 1-2. IEEE, 2013.

84- Wong, Herman MK, Charles Lin, Mohamed A. Swillam, and Amr S. Helmy. "Broadband compact Si wire to slot waveguide couplers." Conference on Lasers and Electro-Optics (CLEO): Science and Innovations, pp. CTu3F-6. Optica Publishing Group, 2013.

83- Abolghasem, Payam, Bhavin B. Bijlani, and Amr S. Helmy. "Tuning curves of parametric light generated using χ 2 nonlinearities in semiconductor lasers." Conference on Lasers and Electro-Optics (CLEO): pp. 1-2. IEEE, 2013.

82- Kang, Dongpeng, Lukas G. Helt, Sergei V. Zhukovsky, Juan P. Torres, John E. Sipe, and Amr S. Helmy. "Hyperentanglement in semiconductor waveguides." Conference on Lasers and Electro-Optics (CLEO): pp. 1-2. IEEE, 2013.

81- Zhukovsky, S. V., L. G. Helt, D. Kang, P. Abolghasem, A. S. Helmy, and J. E. Sipe. "On-chip switching between optical bell states."Conference on Lasers and Electro-Optics (CLEO): pp. 1-2. IEEE, 2013.

80- Li, Fangxin, and Amr S. Helmy. "All-optical Pulse Generation based on gain-induced FWM in a semiconductor optical amplifier." Conference on Lasers and Electro-Optics (CLEO): Science and Innovations, pp. CTu2G-3. Optica Publishing Group, 2013.

79- Weihs, Gregor, T. Günthner, B. Pressl, R. Horn, P. Abolghasem, B. J. Bijlani, D. Kang, and A. S. Helmy. "Semiconductor sources of photon pairs." In Advances in Photonics of Quantum Computing, Memory, and Communication VI, vol. 8635, pp. 125-130. SPIE, 2013. Invited

78- Swillam, Mohamed A., Charles Lin, and Amr S. Helmy. "Equivalent circuit model for plasmonic slot waveguides networks." In Integrated Optics: Devices, Materials, and Technologies XVII, vol. 8627, pp. 202-208. SPIE, 2013.

77- Lin, Charles, Herman MK Wong, Benedict Lau, Mohamed A. Swillam, and Amr S. Helmy. "Broadband efficient hybrid plasmonic nano-junctions." In IEEE Photonics Conference 2012, pp. 680-681. IEEE, 2012.

76- Lin, Charles, Mohamed A. Swillam, and Amr S. Helmy. "Closed-form modelling of plasmonic mesh structures." In IEEE Photonics Conference 2012, pp. 957-958. IEEE, 2012..

75- Lungwitz, Mandy, Payam Abolghasem, and Amr S. Helmy. "Non-degenerate difference-frequency generation in single-stack Bragg reflection waveguides." In Quantum Electronics and Laser Science Conference, pp. JW4A-69. Optica Publishing Group, 2012.

74- Zhukovsky, S. V., L. G. Helt, P. Abolghasem, D. Kang, A. S. Helmy, and J. E. Sipe. "Maximally polarization entangled photons on a chip." Conference on Lasers and Electro-Optics (CLEO), pp. 1-2. IEEE, 2012.

73- Kang, Dongpeng, and Amr S. Helmy. "Generating polarization entangled photons on-chip using concurrent type-I and type-0 processes." Conference on Lasers and Electro-Optics (CLEO), pp. 1-2. IEEE, 2012.

72- YWang, Yan, Amr S. Helmy, and George V. Eleftheriades. "Plasmonic antenna-array for 2D sub-diffraction focusing beyond the optical near-field." Conference on Lasers and Electro-Optics (CLEO), pp. 1-2. IEEE, 2012.

71- Bijlani, Bhavin J., Payam Abolghasem, A. Reijnders, and Amr S. Helmy. "Intracavity parametric fluorescence in diode lasers." Quantum Electronics and Laser Science Conference, p. PDPA3. Optica Publishing Group, 2011. Invited

70- Swillam, Mohamed A., and Amr S. Helmy. "Filter response of feedback plasmonic junctions." In Integrated Photonics Research, Silicon and Nanophotonics, p. ITuD4. Optica Publishing Group, 2011.

69- Mak, J. S. W., A. A. Farah, F. Chen, and A. S. Helmy. "Efficient Raman Sensor for Nanoparticles using Hollow Core Photonic Crystal Fiber." In Optical Sensors, p. SWA2. Optica Publishing Group, 2011.

68- Zareian, Nima, Payam Abolghasem, and Amr S. Helmy. "Tailoring the Far Field of Bragg Reflection Waveguides." In Integrated Photonics Research, Silicon and Nanophotonics, p. IMC4. Optica Publishing Group, 2011.

67- Helmy, A. S., P. Abolghasem, J. Han, B. J. Bijlani, and D. Kang. "Generalized Bragg Reflection Waveguides for Monolithic Frequency Converters using Second Order Nonlinearity." In Integrated Photonics Research, Silicon and Nanophotonics, p. IMD1. Optica Publishing Group, 2011.Invited

66- Swillam, Mohamed A., Bendict Lau, Charles Lin, and Amr S. Helmy. "Design, fabrication, and characterization of nanoscale plasmonic networks." In Photonics North 2011, vol. 8007, pp. 180-184. SPIE, 2011. Invited

65- Mak, J. S. W., A. A. Farah, F. Chen, and A. S. Helmy. "Probing quantum dot cores, their interfaces and thiol cappings non-destructively in dilute solution using Raman scattering in hollow core photonic crystal fiber." Conference on Lasers and Electro-Optics (CLEO): 2011-Laser Science to Photonic Applications, pp. 1-2. IEEE, 2011.

64- Zhukovsky, Sergei V., L. G. Helt, Payam Abolghasem, Dongpeng Kang, J. E. Sipe, and A. S. Helmy. "High-performance entangled photon pair generation in Bragg reflection waveguides." Conference on Lasers and Electro-Optics (CLEO): 2011-Laser Science to Photonic Applications, pp. 1-2. IEEE, 2011.

63- Lau, Benedict, Mohamed A. Swillam, and Amr S. Helmy. "Design, fabrication and characterization of wideband ultra compact coupler between plasmonic slot and silicon waveguides." Conference on Lasers and Electro-Optics (CLEO): Science and Innovations, p. CTuW7. Optica Publishing Group, 2011.

62- Horn, R. T., Payam Abolghasem, Bhavin Bijlani, Amr S. Helmy, and Gregor Weihs. "Type-0 spontaneous parametric down conversion in algaas bragg reflection waveguides." In Quantum Electronics and Laser Science Conference, p. QThN2. Optica Publishing Group, 2011.

61- Bijlani, Bhavin J., Payam Abolghasem, A. Reijnders, and Amr S. Helmy. "Intracavity parametric fluorescence in diode lasers." In Quantum Electronics and Laser Science Conference, p. PDPA3. Optica Publishing Group, 2011.

60- Mak, Jacky SW, Abdiaziz A. Farah, Feifan Chen, and Amr S. Helmy. "Photonic Crystal Fiber for Efficient Raman Scattering of Thiol-Capped Quantum Dots in Aqueous Solution." MRS Online Proceedings Library 1346 (2011): 1-6.

59-Swillam, Mohamed A., and Amr S. Helmy. "Characteristics and applications of rectangular waveguide in sensing, slow light, and negative refraction." In Integrated Optics: Devices, Materials, and Technologies XV, vol. 7941, pp. 167-173. SPIE, 2011.

58- Han, J. B., P. Abolghasem, D. P. Kang, B. J. Bijlani, and A. S. Helmy. "Wavelength conversion in Bragg reflection waveguides." Photonics Global Conference, pp. 1-4. IEEE, 2010. (Invited)

57- C. Tong, C. Z., B. J. Bijlani, L. J. Zhao, S. Alali, Q. Han, and A. S. Helmy. "CW single photonic bandgap mode operation in Bragg reflection waveguide lasers." 23rd Annual Meeting of the IEEE Photonics Society, pp. 477-478. IEEE, 2010.

56- Arjmand, Arghavan, Payam Abolghasem, Junbo Han, and Amr S. Helmy. "Coupled interface modes for nonlinear interaction in periodic layered media." 23rd Annual Meeting of the IEEE Photonics Society, pp. 606-607. IEEE, 2010.

55- Bijlani, Bhavin J., Sanaz Alali, Tong Cunzhu, and Amr S. Helmy. "Bragg reflection waveguide diode lasers for high temperature operation." 23rd Annual Meeting of the Ieee Photonics Society, pp. 481-482. IEEE, 2010.

54-Abolghasem, P., B. J. Bijlani, B. Burgoyne, P. Martek, V. Mercier, A. Villeneuve, and A. S. Helmy. "Bandgap effects in Al x Ga 1− x As Bragg reflection waveguides for enhanced χ (2) interactions." In 2010 23rd Annual Meeting of the IEEE Photonics Society, pp. 602-603. IEEE, 2010.

53- Sigal, Iliya, Amr S. Helmy, and J. Stewart Aitchison. "Towards integrated optical parametric oscillators." 23rd Annual Meeting of the IEEE Photonics Society, pp. 612-613. IEEE, 2010.

52-Wagner, Sean J., S. Chaitanya Kumar, Omid Kokabee, Barry M. Holmes, Usman Younis, Majid Ebrahim Zadeh, David C. Hutchings, Amr S. Helmy, and J. Stewart Aitchison. "Performance and limitations of quasi-phase matching semiconductor waveguides with picosecond pulses." In Photonics North 2010, vol. 7750, pp. 442-448. SPIE, 2010..

51- Wagner, S. J., I. Sigal, A. S. Helmy, J. S. Aitchison, U. Younis, B. M. Holmes, and D. C. Hutchings. "Difference frequency generation in domain-disordered quasi-phase matching semiconductor waveguides." Conference on Lasers and Electro-Optics (CLEO)/QELS: Laser Science to Photonic Applications, pp. 1-2. IEEE, 2010..

50-Abolghasem, Payam, Junbo Han, Bhavin J. Bijlani, and Amr S. Helmy. "New modality of type-I second order nonlinear interaction in bulk AlGaAs Bragg reflection waveguide." Conference on Lasers and Electro-Optics (CLEO)/QELS: 2010 Laser Science to Photonic Applications, pp. 1-2. IEEE, 2010.

49- Bijlani, Bhavin J., and Amr S. Helmy. "Anti-guided Bragg reflection waveguide diode lasers." Conference on Lasers and Electro-Optics (CLEO), p. CTuO5. Optica Publishing Group, 2010.

48- Chen, C., G. Ding, B. S. Ooi, L. F. Lester, A. Helmy, T. L. Koch, and J. C. M. Hwang. "Modulation-bandwidth enhancement by stimulated Raman scattering in quantum dash lasers." Conference on Lasers and Electro-Optics (CLEO), p. CTuZ2. Optica Publishing Group, 2010.

47- Han, J. B., P. Abolghasem, B. J. Bijlani, and A. S. Helmy. "Broadband sum-frequency generation in AlGaAs Bragg reflection waveguides." In Quantum Electronics and Laser Science Conference, p. QWE2. Optica Publishing Group, 2010.

46- Schaarschmidt, Antje, Abdiaziz A. Farah, Arun Aby, and Amr S. Helmy. "Influence of rapid thermal annealing on the molecular structure of PEDOT-PSS thin films." IEEE LEOS Annual Meeting Conference Proceedings, pp. 351-352. IEEE, 2009.

45- Abolghasem, Payam, Junbo Han, Bhavin J. Bijlani, Arghavan Arjmand, and Amr S. Helmy. "Second-harmonic generation using matching-layer enhanced Al x Ga 1− x As Bragg reflection waveguide." IEEE LEOS Annual Meeting Conference Proceedings, pp. 689-690. IEEE, 2009.

44- Abolghasem, Payam, Junbo Han, Bhavin J. Bijlani, Arghavan Arjmand, and Amr S. Helmy. "Highly efficient second-harmonic generation in monolithic matching layer enhanced Al $ _x $ Ga $ _ {1-x} $ As Bragg reflection waveguides." IEEE Photonics Technology Letters 21, no. 19 (2009): 1462-1464.

43- Yanagiya, Shin-ichiro, Jouta Morimoto, Nobuo Goto, and Amr S. Helmy. "Nonlinear optical and ellipsometric study of manganese-phthalocyanine thin films." In Linear and Nonlinear Optics of Organic Materials IX, vol. 7413, pp. 111-118. SPIE, 2009.

42- Abolghasem, Payam, Xiaojuan Shi, Martin Hendrych, Juan P. Torres, and Amr S. Helmy. "Bragg reflection waveguides: A novel platform for enhanced control of photon-pair generation via spontaneous parametric down conversion." Conference on Lasers and Electro-Optics (CLEO)/Conference on Quantum electronics and Laser Science Conference, pp. 1-2. IEEE, 2009.

41-Abolghasem, Payam, Bhavin J. Bijlani, and Amr S. Helmy. "Continuous-wave frequency doubling of near-infrared light using Al x Ga 1− x As Bragg reflection waveguides." Conference on Lasers and Electro-Optics (CLEO)/ Conference on Quantum electronics and Laser Science Conference, pp. 1-2. IEEE, 2009.

40- Rutledge, S., J. Dinglasan, D. Anderson, A. Das, J. Goh, C. Goh, and A. Helmy. "Effects of rapid thermal annealing on CdTe nanoparticles: A Raman spectroscopic study using hollow core photonic crystal fiber." Conference on Lasers and Electro-Optics (CLEO), p. CTuO6. Optica Publishing Group, 2009.

39- Holmes, B. M., U. Younis, D. C. Hutchings, S. J. Wagner, A. S. Helmy, and J. S. Aitchison. "Type-II quasi-phase-matched second-harmonic generation in domain-disordered semiconductor waveguides." Conference on Lasers and Electro-Optics (CLEO), p. JWA7. Optica Publishing Group, 2009.

38- Helmy, A. S., P. Abolghasem, and B. Bijlani. "Harnessing second-order optical nonlinearities in compound semiconductors." In Nonlinear Frequency Generation and Conversion: Materials, Devices, and Applications VIII, vol. 7197, pp. 177-186. SPIE, 2009. (Invited)

37- Abolghasem, Payam, Bhavin J. Bijlani, and Amr S. Helmy. "Enhanced second harmonic generation in ridge Bragg reflection waveguide." LEOS 21st Annual Meeting of the IEEE Lasers and Electro-Optics Society, pp. 882-883. IEEE, 2008.

36- Wagner, S. J., B. M. Holmes, U. Younis, A. S. Helmy, D. C. Hutchings, and J. S. Aitchison. "Quasi-phase-matched continuous wave second-harmonic generation in periodically intermixed GaAs/AlGaAs superlattice waveguides." LEOS 21st Annual Meeting of the IEEE Lasers and Electro-Optics Society, pp. 880-881. IEEE, 2008..

35- A. S. Helmy, J. Irizar, S. Rutledge, J. Dinglasan, C. Goh, J. B. Goh, D. Anderson, 'Raman spectroscopy of nanoparticles in photonic crystal fibres,' IEEE Photonics Global, Singapore, 2008. (Invited)

34-Abolghasem, Payam, Bhavin Bijlani, and Amr Helmy. "Phase matching second order optical nonlinearities in compound semiconductors." In ECS Meeting Abstracts, no. 27, p. 2037. IOP Publishing, 2008. (Invited)

33- Y. Wang, A. S. Helmy, G. Eleftheriades, 'Plasmonic nanoslot antennas for optical sub-wavelength focusing,' URSI-GA, Chicago, 2008. (Invited)

32-Groom, Kristian M., Ryan R. Alexander, David TD Childs, Andrey B. Krysa, John S. Roberts, Amr S. Helmy, and Richard A. Hogg. "GaAs-based buried heterostructure laser incorporating an InGaP opto-electronic confinement layer." Quantum Electronics and Laser Science Conference, p. JThA3. Optica Publishing Group, 2008.

31- Al Muhairi, A., S. J. Wagner, J. S. Aitchison, and A. S. Helmy. "Group velocity mismatch and third-order nonlinearities in domain-disordered quasi-phase matching waveguides." Conference on Lasers and Electro-Optics, p. CFK5. Optica Publishing Group, 2008.

30- Irizar, J., J. Dinglasan, J. Goh, A. Khetani, H. Anis, D. Anderson, C. Goh, and A. S. Helmy. "Raman spectroscopy of nanoparticles in photonic crystal fibers." Conference on Lasers and Electro-Optics, p. CTuMM7. Optica Publishing Group, 2008.

29- Bijlani, Bhavin J., Payam Abolghasem, and A. S. Helmy. "Phase Matching using Ridge Bragg Reflection Waveguides." Conference on Lasers and Electro-Optics and 2008 Conference on Quantum Electronics and Laser Science, pp. 1-2. IEEE, 2008.

28- Wagner, S. J., A. S. Helmy, J. S. Aitchison, U. Younis, B. M. Holmes, and D. C. Hutchings. "Control of the third-order nonlinearities in a GaAs/AlGaAs superlattice by ion implantation quantum well intermixing." Quantum Electronics and Laser Science Conference, p. QTuL3. Optica Publishing Group, 2008.

27-Groom, K. M., B. J. Stevens, D. T. D. Childs, R. R. Alexander, J. S. Roberts, A. S. Helmy, and R. A. Hogg. "GaAs-based self-aligned laser incorporating an InGaP opto-electronic confinement layer." IEEE 21st International Semiconductor Laser Conference, pp. 97-98. IEEE, 2008.

26- Merchant, C. A., S. M. Eaton, R. Iyer, A. Helmy, P. R. Herman, J. S. Aitchison, C. Hnatovsky, and R. S. Taylor. "Low-loss waveguides fabricated in KGd (WO4) 2 by high repetition rate femtosecond laser." Conference on Lasers and Electro-Optics, p. CPDB8. Optica Publishing Group, 2007.

25- Nejadmalayeri, Amir H., Philip Scrutton, Jacky Mak, Amr S. Helmy, Peter R. Herman, Jonas Burghoff, Stefan Nolte, Andreas Tünnermann, and Jörg Kaspar. "Solid-phase generation of silicon nanoparticles by ultrafast laser irradiation." Conference on Lasers and Electro-Optics, p. CThJ5. Optica Publishing Group, 2007..

24- Wagner, S. J., J. Meier, A. S. Helmy, J. S. Aitchison, D. Modotto, M. Sorel, and D. C. Hutchings. "Polarization-dependent Nonlinear refraction in GaAs/AlAs superlattice waveguides." Frontiers in Optics, p. FWE2. Optica Publishing Group, 2006.

23-Scrutton, P., M. Sorel, D. C. Hutchings, J. S. Aitchison, and A. S. Helmy. "Interface Raman Modes to Study Compositional Intermixing in GaAs/AlAs Superlattice." LEOS 2006-19th Annual Meeting of the IEEE Lasers and Electro-Optics Society, pp. 112-113. IEEE, 2006.

22- Wagner, S. J., J. Meier, A. S. Helmy, J. S. Aitchison, Daniele Modotto, M. Sorel, and D. C. Hutchings. "Cross-Phase Modulation in GaAs/AlAs Superlattice-Core Waveguides Below the Half Band Gap." LEOS 19th Annual Meeting of the IEEE Lasers and Electro-Optics Society, pp. 90-91. IEEE, 2006.

21- Helmy, Amr S., and Brian R. West. "Phase matching using Bragg reflector waveguides." IEEE LEOS Annual Meeting Conference Proceedings, pp. 440-441. IEEE, 2005.

20-Hutchings, David C., Marc Sorel, Khalil Zeaiter, A. J. Zilkie, Bert Leesti, A. Saher-Helmy, P. W. E. Smith, and J. S. Aitchison. "Quasi-phase-matched second harmonic generation with picosecond pulses in GaAs/AlAs superlattice waveguides." Nonlinear Guided Waves and Their Applications, p. TuA5. Optica Publishing Group, 2004.

19- Helmy, A. Saher, David C. Hutchings, Todd C. Kleckner, James Stewart Aitchison, Ann Catrina Bryce, J. H. Marsh, P. Martin et al. "Quantum well intermixing technologies for quasi-phase-matching gratings." In LEOS 2000. 2000 IEEE Annual Meeting Conference Proceedings. 13th Annual Meeting. IEEE Lasers and Electro-Optics Society 2000 Annual Meeting (Cat. No. 00CH37080), vol. 2, pp. 712-713. IEEE, 2000. (Invited)

18- Smith, J. M., G. S. Buller, A. S. Helmy, A. C. Bryce, and J. H. Marsh. "Picosecond time-resolved photoluminescence microscopy of short period impurity free vacancy disordered AlGaAs gratings." International Quantum Electronics Conference, p. QThD99. Optica Publishing Group, 2000.

17- Huang, W., B. Qiu, C. Massie, A. Saher Helmy, A. C. Bryce, and J. H. Marsh. "Beam steering via wavelength tuning in arrayed waveguide gratings." European Conference on Lasers and Electro-Optics, p. CWJ6. Optica Publishing Group, 2000.

15- Helmy, A. Saher, A. C. Bryce, C. N. Ironside, J. S. Aitchison, J. H. Marsh, and S. G. Ayling. "Optical diagnostics of microstructures fabricated using quantum well intermixing." MRS Online Proceedings Library (OPL) 607, 1999.

20- Teng, JingHua, Soo-Jin Chua, Y. H. Huang, Zhenhua Zhang, G. Li, A. Saher Helmy, and John H. Marsh. "Multiwavelength lasers fabricated by a novel impurity-free quantum-well intermixing technology." In Design, Fabrication, and Characterization of Photonic Devices, vol. 3896, pp. 191-198. SPIE, 1999.

14- Teng, J. H., S. J. Chua, G. Li, A. S. Helmy, and J. H. Marsh. "Band gap tuning by a buried Ge interlayer in quantum well intermixing." Symposium on High Performance Electron Devices for Microwave and Optoelectronic Applications. EDMO (Cat. No. 99TH8401), pp. 194-199. IEEE, 1999.

13- Bhattacharyya, D., A. Saher Helmy, A. C. Bryce, E. A. Avrutin, and J. H. Marsh. "Selective control of In/sub 0.5/Ga/sub 0.5/As/GaAs quantum dot properties by rapid thermal processing: quantum dot intermixing." In Digest of the LEOS Summer Topical Meetings: Nanostructures and Quantum Dots/WDM Components/VCSELs and Microcavaties/RF Photonics for CATV and HFC Systems (Cat. No. 99TH8455), pp. I29-I30. IEEE, 1999.

12-Dumais, Patrick, Alain Villeneuve, A. Saher-Heuny, J. Stewart Aitchison, Lars Friedrich, Russell A. Fuerst, and George I. Stegeman. "Towards soliton emission in GaAs/AlGaAs multi-quantum-well asymmetric waveguide structures below half the bandgap." In Nonlinear Guided Waves and Their Applications, p. WD13. Optica Publishing Group, 1999.

11- Helmy, A. Saher, A. C. Bryce, C. N. Ironside, J. S. Aitchison, J. H. Marsh, and I. Wilcock. "Characterising compositional intermixing in GaAs/AlGaAs heterostructures using Raman spectroscopy." Technical Digest. Summaries of papers presented at the Conference on Lasers and Electro-Optics. Postconference Edition. CLEO'99. Conference on Lasers and Electro-Optics (IEEE Cat. No. 99CH37013), pp. 402-403. IEEE, 1999.

10- Helmy, A. Saher, A. C. Bryce, C. N. Ironside, J. S. Aitchison, J. H. Marsh, I. Gontijo, G. S. Buller, S. Karlin, and I. Wilcock. "Characterisation of the resolution of impurity free vacancy disordering in GaAs-AlGaAs using Raman and photoluminescence correlation measurements." In Conference Proceedings. LEOS'98. 11th Annual Meeting. IEEE Lasers and Electro-Optics Society 1998 Annual Meeting (Cat. No. 98CH36243), vol. 2, pp. 47-48. IEEE, 1998.

9-Johnson, N. P., A. S. Helmy, A. C. Bryce, and J. H. Marsh. "Deep Levels Induced by Impurity Free Vacancy Disordering." European Conference on Lasers and Electro-Optics, p. CThK6. Optica Publishing Group, 1998.

8- Ooi, B. S., A. Saher Helmy, Y. S. Tang, A. C. Bryce, J. H. Marsh, M. Paquette, and J. Beauvais. "Quantum well wires using As implantation induced intermixing in GaAs/AIGaAs." European Conference on Lasers and Electro-Optics, p. CThK5. Optica Publishing Group, 1998.

7- Helmy, A. Saher, B. S. Ooi, F. Camacho, A. C. Bryce, J. S. Aitchison, R. M. De La Rue, and J. H. Marsh. "Mach-Zehnder modulators monolithicaliy integrated with Fabry-Perot laser diodes in GaAs/AlGaAs using impurity-free vacancy disordering." European Conference on Lasers and Electro-Optics, p. CME5. Optica Publishing Group, 1998.

6- Ke, Maolong, A. Saher Helmy, A. C. Bryce, J. H. Marsh, J. Davidson, and P. Dawson. "The Effect of Non-abrupt Initial Interface on The Electronic Structure of The Intermixed Quantum Wells." European Quantum Electronics Conference, p. QWC52. Optica Publishing Group, 1998.

5- Helmy, A. Saher, J. S. Aitchison, and J. H. Marsh. "Kinetics of impurity free vacancy disordering in GaAs/AlGaAs heterostructures." In Conference Proceedings. LEOS'97. 10th Annual Meeting IEEE Lasers and Electro-Optics Society 1997 Annual Meeting, vol. 2, pp. 445-446. IEEE, 1997.

4- Helmy, A. Saher, B. S. Ooi, F. Camacho, A. C. Bryce, J. S. Aitchison, R. M. De La Rue, and J. H. March. "Mach-Zehnder modulators in GaAs/AlGaAs double quantum well structures: a regrowth-free approach for monolithic integration." IEE Colloquium on Optoelectronic Integration and Switching (Ref. No: 1997/372), pp. 8-1. IET, 1997.

3-Durnais, Patrick, Alain Villeneuve, A. Saher Helmy, Craig J. Hamilton, and J. Stewart Aitchison. "Soliton emission from an AlGaAs waveguide." Quantum Electronics and Laser Science Conference, p. QThG16. Optica Publishing Group, 1997.

2- Helmy, A. Saher, B. S. Ooi, F. Camacho, A. C. Bryce, J. S. Aitchison, R. M. De La Rue, and J. H. March. "Mach-Zehnder modulators in GaAs/AlGaAs double quantum well structures: a regrowth-free approach for monolithic integration." IEE Colloquium on Optoelectronic Integration and Switching (Ref. No: 1997/372), pp. 8-1. IET, 1997.

1- Helmy, A. Saher, B. S. Ooi, and J. H. Marsh. "Investigation of the resolution limit of the hydrogen Plasma Induced Defect Layer Intermixing Process." Integrated Photonics Research, p. IMH21. Optica Publishing Group, 1996.