Peer Reviewed
27. “Overcoming Barriers to Dynamic Phase-Only Modulation in Transmissive Metasurfaces via Diffraction Control” J. Kim, R. Sokhoyan, M. Yi, S. Han, H. A. Atwater, M. S. Jang. ACS Nano, 20, 6622-6631 (2026). [PDF] [SUP]
26. “Gate-Tunable Transmissive Metasurfaces with Dual-Resonance-Enhanced Modulation” S. Ito, S. Uenoyama, R. Sokhoyan, J. Sisler, H. A. Atwater. ACS Photonics, 13, 3742-3749 (2026). [PDF] [SUP]
25. “Electrically tunable space–time metasurfaces at optical frequencies” J. Sisler, P. Thureja, M. Y. Grajower, R. Sokhoyan, I. Huang, H. A. Atwater. Nature Nanotechnology, 19, 1491-1498 (2024). [SUP]
24. “All‐Dielectric High‐Q Dynamically Tunable Transmissive Metasurfaces” R. Sokhoyan, C. U. Hail, M. Foley, M. Y. Grajower, H. A. Atwater. Laser & Photonics Reviews, 18, 2300980 (2024). [PDF] [SUP]
23. “High quality factor metasurfaces for two-dimensional wavefront manipulation” C. U. Hail, M. Foley, R. Sokhoyan, L. Michaeli, H. A. Atwater. Nature Communications, 14, 8476 (2023). [PDF] [SUP]
22. “Electrically tunable conducting oxide metasurfaces for high power applications” R. Sokhoyan, P. Thureja, J. Sisler, M. Grajower, K. Shayegan, E. Feigenbaum, S. Elhadj, H. A. Atwater. Nanophotonics, 12, 239-253 (2023). [PDF]
21. “Toward a universal metasurface for optical imaging, communication, and computation” P. Thureja, R. Sokhoyan, C. U. Hail, J. Sisler, M. Foley, M. Y. Grajower, H. A. Atwater. Nanophotonics, 11, 3745-3768 (2022). [PDF]
20. “Toward high laser power beam manipulation with nanophotonic materials: evaluating thin film damage performance” T. U. Tumkur, R. Sokhoyan, M. P. Su, A. Ceballos-Sanchez, G. K. Shirmanesh, Y. Kim, H. A. Atwater, E. Feigenbaum, S. Elhadj. Optics Express, 29, 7261 (2021). [PDF]
19. “Near‐Infrared Active Metasurface for Dynamic Polarization Conversion” P. C. Wu, R. Sokhoyan, G. K. Shirmanesh, W. Cheng, H. A. Atwater. Advanced Optical Materials, 9, 2100230 (2021). [SUP]
18. “Electro-optically Tunable Multifunctional Metasurfaces” G. K. Shirmanesh, R. Sokhoyan, P. C. Wu, H. A. Atwater. ACS Nano, 14, 6912-6920 (2020). [PDF] [SUP]
17. “Array-Level Inverse Design of Beam Steering Active Metasurfaces” P. Thureja, G. K. Shirmanesh, K. T. Fountaine, R. Sokhoyan, M. Grajower, H. A. Atwater. ACS Nano, 14, 15042-15055 (2020). [SUP]
16. “Phase Modulation with Electrically Tunable Vanadium Dioxide Phase-Change Metasurfaces” Y. Kim, P. C. Wu, R. Sokhoyan, K. Mauser, R. Glaudell, G. K. Shirmanesh, H. A. Atwater. Nano Letters, 19, 3961-3968 (2019). [SUP]
15. “Dynamic beam steering with all-dielectric electro-optic III–V multiple-quantum-well metasurfaces” P. C. Wu, R. A. Pala, G. K. Shirmanesh, W. Cheng, R. Sokhoyan, M. Grajower, M. Z. Alam, D. Lee, H. A. Atwater. Nature Communications, 10, 3654 (2019). [PDF] [SUP]
14. “Tunable all‐dielectric metasurface for phase modulation of the reflected and transmitted light via permittivity tuning of indium tin oxide” A. Forouzmand, M. M. Salary, G. K. Shirmanesh, R. Sokhoyan, H. A. Atwater, H. Mosallaei. Nanophotonics, 8, 415-427 (2018). [PDF]
13. “Dual-Gated Active Metasurface at 1550 nm with Wide (>300°) Phase Tunability” G. K. Shirmanesh, R. Sokhoyan, R. A. Pala, H. A. Atwater. Nano Letters, 18, 2957-2963 (2018). [SUP]
12. “Millivolt Modulation of Plasmonic Metasurface Optical Response via Ionic Conductance” K. Thyagarajan, R. Sokhoyan, L. Zornberg, H. A. Atwater. Advanced Materials, 29, 1701044 (2017). [PDF] [SUP]
11. “Dynamically controlled Purcell enhancement of visible spontaneous emission in a gated plasmonic heterostructure” Y. Lu, R. Sokhoyan, W. Cheng, G. K. Shirmanesh, A. R. Davoyan, R. A. Pala, K. Thyagarajan, H. A. Atwater. Nature Communications, 8, 1631 (2017). [PDF] [SUP]
10. “Gate-Tunable Conducting Oxide Metasurfaces” Y. Huang, H. W. H. Lee, R. Sokhoyan, R. A. Pala, K. Thyagarajan, S. Han, D. P. Tsai, H. A. Atwater. Nano Letters, 16, 5319-5325 (2016). [PDF] [SUP]
9. “Quantum optical properties of a dipole emitter coupled to an ɛ-near-zero nanoscale waveguide” R. Sokhoyan, H. A. Atwater. Optics Express, 21, 32279 (2013). [PDF]
8. “Strong-coupling regime of the nonlinear landau-zener problem for photo- and magnetoassociation of cold atoms” R. Sokhoyan, H. Azizbekyan, C. Leroy, A. Ishkhanyan. Journal of Experimental and Theoretical Physics, 112, 543-550 (2011). [PDF]
7. “Weak coupling regime of the Landau-Zener transition for association of an atomic Bose-Einstein condensate” N. Sahakyan, H. Azizbekyan, H. Ishkhanyan, R. Sokhoyan, A. Ishkhanyan. Laser Physics, 20, 291-297 (2010). [PDF]
6. “Quadratic-nonlinear Landau-Zener transition for association of an atomic Bose-Einstein condensate with inter-particle elastic interactions included” A. Ishkhanyan, R. Sokhoyan, K. A. Suominen, C. Leroy, H. R. Jauslin. The European Physical Journal D, 56, 421-429 (2010). [PDF]
5. “Demkov-Kunike model in cold molecule formation: the fast resonance sweep regime of the strong interaction limit” R. S. Sokhoyan. Journal of Contemporary Physics (Armenian Academy of Sciences), 45, 51-57 (2010). [PDF: ENG | RUS]
4. “Rosen–Zener model in cold molecule formation” A. Ishkhanyan, R. Sokhoyan, B. Joulakian, K. Suominen. Optics Communications, 282, 218-226 (2009). [PDF]
3. “Demkov-kunike model for cold atom association: Weak interaction regime” R. S. Sokhoyan, H. H. Azizbekyan, C. Leroy, A. M. Ishkhanyan. Journal of Contemporary Physics (Armenian Academy of Sciences), 44, 272-277 (2009). [PDF: ENG | RUS]
2. “Strong nonlinearity regimes of two-mode photoassociation of atomic Bose-condensates” R. S. Sokhoyan, B. T. Joulakian, A. M. Ishkhanyan. Journal of Contemporary Physics (Armenian Academy of Sciences), 41, 23-28 (2006). [PDF: ENG | RUS]
1. “New hypergeometric series solutions to the general Heun equation” R. S. Sokhoyan, D. Y. Melikdzanian, A. M. Ishkhanyan. Journal of Contemporary Physics (Armenian Academy of Sciences), 40, 1 (2005). [PDF: ENG | RUS]
Proceedings
32. “Liquid-crystal metasurfaces for active polarization control” J. Sisler, C. U. Hail, Z. S. Davidson, J. Gao, R. Sokhoyan, S. Elhadj, H. A. Atwater. Liquid Crystals XXIX, 28 (2025).
31. “Ferroelectric nanophotonics: electro-optic active metasurfaces” M. Thomaschewski, R. Sokhoyan, M. Foley, H. A. Atwater. High Contrast Metastructures XIV, 38 (2025).
30. “Electro-Optically Tunable Active Transmissive Metasurfaces” R. Sokhoyan, M. Thomaschewski, J. Y. Kim, M. S. Jang, H. Atwater. Optica Design and Fabrication Congress 2025 (FlatOptics, Freeform, OFT), FW4B.1 (2025).
29. “Electrically Tunable Metasurfaces in Space and Time” J. Sisler, P. Thureja, M. D. Kelzenberg, M. Y. Grajower, R. Sokhoyan, I. Huang, H. A. Atwater. Optica Design and Fabrication Congress 2025 (FlatOptics, Freeform, OFT), FW4B.2 (2025).
28. “Optical links with electronically steerable apertures” J. Sisler, P. Thureja, J. M. Kovalik, T. Roberts, R. Sokhoyan, H. A. Atwater, A. Biswas. Free-Space Laser Communications XXXVI, 22 (2024).
27. “High-efficiency electrically tunable active metasurfaces” R. Sokhoyan, H. A. Atwater. Photonic and Phononic Properties of Engineered Nanostructures XIV, 20 (2024).
26. “High-Q Wavefront Shaping with Higher-order Mie-resonant Metasurfaces” C. U. Hail, M. Foley, R. Sokhoyan, L. Michaeli, H. A. Atwater. CLEO 2024, FTu4G.7 (2024).
25. “A highly transmissive polarization converting active metasurface using liquid crystal reorientation” J. Sisler, C. U. Hail, Z. S. Davidson, R. Sokhoyan, S. Elhadj, H. A. Atwater. Metamaterials, Metadevices, and Metasystems 2024, 66 (2024).
24. “Space-Time Modulated Metasurfaces for Steering of Frequency-Shifted Beams” P. Thureja, J. F. Sisler, M. Y. Grajower, R. Sokhoyan, H. A. Atwater. CLEO 2023, FTu4D.5 (2023).
23. “Probing laser-induced dewetting and damage mechanisms in plasmonic thin films for high power beam manipulation” T. U. T. Umanath, R. Sokhoyan, E. Anwar, M. A. Noginov, H. A. Atwater, S. Elhadj, E. Feigenbaum. Metamaterials, Metadevices, and Metasystems 2023, 69 (2023).
22. “Electrically tunable space-time metasurfaces at optical frequencies” J. Sisler, P. Thureja, M. Y. Grajower, R. Sokhoyan, H. A. Atwater. Metamaterials, Metadevices, and Metasystems 2023, 21 (2023).
21. “Electrically controlled reconfigurable apertures for free space optical communications” R. Sokhoyan, M. Y. Grajower, J. F. Sisler, K. J. Shayegan, P. Thureja, H. A. Atwater. Free-Space Laser Communications XXXIV, 3 (2022).
20. “Active metasurfaces for laser communications” R. Sokhoyan, M. Y. Grajower, J. Sisler, P. Thureja, K. Shayegan, H. A. Atwater. Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XX, 48 (2022).
19. “Toward high-performance plasmonic metasurfaces: from forward to inverse design approach” C. Lin, Y. Chen, J. Lin, Y. Cheng, A. Hassanfiroozi, H. C. Wu, H. Kuo, R. Sokhoyan, G. K. Shirmanesh, W. Cheng, H. Atwater, P. C. Wu. Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XIX, 18 (2021).
18. “Power Handling Requirements for Beam Steering Metasurfaces in Ranging and Communications” R. Sokhoyan, M. Y. Grajower, P. Thureja, H. A. Atwater. OSA Optical Design and Fabrication 2021 (Flat Optics, Freeform, IODC, OFT), FW3C.5 (2021).
17. “High-efficiency active metasurface at the telecom based on InP multiple quantum wells” M. Grajower, R. Sokhoyan, P. Thureja, H. A. Atwater. High Contrast Metastructures X, 22 (2021).
16. “Electrically tunable conducting oxide metasurfaces for high-power applications” R. Sokhoyan, T. U. Tumkur, M. Y. Grajower, M. Su, A. Ceballos-Sanchez, G. K. Shirmanesh, Y. Kim, E. Feigenbaum, S. Elhadj, H. A. Atwater. High Contrast Metastructures X, 24 (2021).
15. “Electrically controlled active metasurfaces for free space optical communications” R. Sokhoyan, M. Y. Grajower, E. Feigenbaum, S. Elhadj, H. A. Atwater. Active Photonic Platforms XIII, 77 (2021).
14. “Array-level inverse design for optimized beam directivity in active metasurfaces” P. Thureja, G. K. Shirmanesh, K. T. Fountaine, R. Sokhoyan, M. Grajower, H. A. Atwater. 2021 IEEE Photonics Society Summer Topicals Meeting Series (SUM), 1-2 (2021).
13. “Universal active metasurfaces for dynamic beam steering and reconfigurable focusing at telecommunication wavelengths” G. K. Shirmanesh, R. Sokhoyan, P. C. Wu, H. A. Atwater. Conference on Lasers and Electro-Optics, JM1G.3 (2020). [PDF]
12. “Array-scale inverse design of active metasurfaces” P. Thureja, G. K. Shirmanesh, K. T. Fountaine, R. Sokhoyan, M. Grajower, H. A. Atwater. Conference on Lasers and Electro-Optics, FW3B.4 (2020). [PDF]
11. “All-dielectric multiple quantum well active metasurfaces” M. Grajower, J. Park, R. S. P. C. Wu, G. K. Shirmanesh, S. Biswas, H. A. Atwater. Conference on Lasers and Electro-Optics, FF1B.7 (2020). [PDF]
10. “Multifunctional active reflectarray metasurfaces (Conference Presentation)” G. K. Shirmanesh, R. Sokhoyan, P. C. Wu, H. A. Atwater. High Contrast Metastructures VIII, 24 (2019).
9. “Interfacing single-photon emitters in atomically thin van der Waals crystals with photonic metasurfaces (Conference Presentation)” P. K. Jha, G. K. Shirmanesh, A. Mitskovets, A. Nagpal, H. Akbari, B. Vest, C. Went, R. Sokhoyan, H. A. Atwater. High Contrast Metastructures VIII, 40 (2019).
8. “Towards dynamic polarization control with optical metasurfaces (Conference Presentation)” P. C. Wu, R. Sokhoyan, G. K. Shirmanesh, C. H. Chu, D. P. Tsai, H. A. Atwater. Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVI, 42 (2018).
7. “Reconfigurable beam steering metasurface at telecommunication wavelengths (Conference Presentation)” G. K. Shirmanesh, R. Sokhoyan, P. C. Wu, H. A. Atwater. Active Photonic Platforms X, 49 (2018).
6. “>270-degree phase shift in aluminum gate tunable conducting oxide metasurfaces for continuous optical beam steering at 1550 nm (Conference Presentation)” G. K. Shirmanesh, R. Sokhoyan, R. Pala, H. A. Atwater. Photonic and Phononic Properties of Engineered Nanostructures VIII, 10 (2018).
5. “Tunable optical response and purcell enhancement of gated plasmonic structures” R. Sokhoyan, G. K. Shirmanesh, Y. Lu, K. Thyagarajan, R. A. Pala, H. A. Atwater. 2017 International Conference on Optical MEMS and Nanophotonics (OMN), 1-2 (2017).
4. “Plasmonic nanophotonic modulators” M. Z. Alam, H. W. Lee, Y. Huang, R. A. Pala, K. Thyagarajan, G. K. Shirmanesh, R. Sokhoyan, H. A. Atwater. 2017 IEEE Photonics Society Summer Topical Meeting Series (SUM), 193-194 (2017).
3. “Field-effect modulation of the local density of optical states in a reflectarray metasurface (Conference Presentation)” G. K. Shirmanesh, R. Sokhoyan, S. Han, H. A. Atwater. Active Photonic Materials VIII, 43 (2016).
2. “A physically realizable term-crossing model for cold atom association” H. Azizbekyan, T. Shahverdyan, H. Ishkhanyan, A. Ishkhanyan. Proc. of Conf. Laser Physics-2009, “Gitutyun” publ., pp. 54-57 (2010). [PDF]
1. “First Demkov-Kunike Model in Cold Molecule Formation: Large Detuning Regime” S. M. Karapetyan, H. A. Ishkhanyan, T. A. Shahverdyan, H. H. Azizbekyan, R. S. Sokhoyan, A. M. Ishkhanyan. Book of Abstracts of Intern. Advanced Research Workshop “MPOP-2009”, Yerevan, pp. 48-52 (2009). [PDF]
Preprints
6. “Picometer-Scale Spatial Symmetry Breaking in Active Transmissive Metasurfaces” M. Thomaschewski, R. Sokhoyan, E. Schneider, H. Atwater. arXiv:2604.15185 (2026). [PDF]
5. “Independent Amplitude and Phase Modulation in Active Transmissive Metasurfaces via Complex Permittivity Tuning” C. M. Yi, R. Sokhoyan, J. Kim, S. Hong, J. Song, H. A. Atwater, M. S. Jang. arXiv:2610.01085 (2026). [PDF]
4. “Dual-polarized, mid-infrared nonreciprocal absorption” S. Pajovic, Y. Zhao, Y. Lim, R. Sokhoyan, H. A. Atwater. arXiv:2609.00607 (2026). [PDF]
3. “An Optically Addressable Transmissive Liquid Crystal Metasurface Spatial Light Modulator” J. Sisler, C. U. Hail, Z. S. Davidson, A. M. K. Fehr, J. Gao, R. Sokhoyan, S. Elhadj, H. A. Atwater. arXiv:2603.20574 (2026). [PDF]
2. “Cooperative behavior of quantum dipole emitters coupled to a zero-index nanoscale waveguide” R. Sokhoyan, H. A. Atwater. arXiv:1510.07071 (2015). [PDF]
1. “Change in the adiabatic invariant in a nonlinear Landau-Zener problem” R. Sokhoyan, D. Melikdzhanian, C. Leroy, H. Jauslin, A. Ishkhanyan. arXiv:0910.3061 (2009). [PDF]
PhD Thesis
“Formation of molecules in ultra-cold atomic gazes via quasi-resonant fields” R. Sokhoyan. PhD Thesis, Université de Bourgogne, Dijon (2010). [PDF]