Non-volatile phase-only transmissive spatial light modulator

Zhuoran Fang; Rui Chen; Johannes E. Froech; Quentin A. Tanguy; Asir I. Khan; Xiangjin Wu; Arnab Manna; Matthew S. Reynolds; Eric Pop; Arka Majumdar

doi:10.1117/12.2675093

4 October 2023 Non-volatile phase-only transmissive spatial light modulator

Zhuoran Fang, Rui Chen, Johannes E. Froech, Quentin A. Tanguy, Asir I. Khan, Xiangjin Wu, Arnab Manna, Matthew S. Reynolds, Eric Pop, Arka Majumdar

Author Affiliations +

Proceedings Volume PC12647, Active Photonic Platforms (APP) 2023; PC126470X (2023) https://doi.org/10.1117/12.2675093
Event: SPIE Nanoscience + Engineering, 2023, San Diego, California, United States

Abstract

We demonstrated nonvolatile, electrically programmable, phase-only modulation of free-space infrared radiation in transmission based on low-loss phase change materials (PCMs) Sb2Se3. By coupling ultra-thin PCM to a high quality-factor (Q~406) diatomic metasurface, we demonstrated a phase-only modulation of ~0.25π (~0.2π) in simulation (experiment), ten times larger than without using the metasurface. The metasurface is robust against reversible switching over 1,000 times. Finally, we showed independent control of 17 meta-molecules, achieving ten deterministic resonance levels in a tunable notch filter with a maximum spectral shift of ~8nm. The independent control also allowed us to achieve varifocal lensing. This work paves way to a nonvolatile phase-only SLM.

Conference Presentation

Citation Download Citation

Zhuoran Fang, Rui Chen, Johannes E. Froech, Quentin A. Tanguy, Asir I. Khan, Xiangjin Wu, Arnab Manna, Matthew S. Reynolds, Eric Pop, and Arka Majumdar "Non-volatile phase-only transmissive spatial light modulator", Proc. SPIE PC12647, Active Photonic Platforms (APP) 2023, PC126470X (4 October 2023); https://doi.org/10.1117/12.2675093

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