Experimental demonstration of photonic crystal resonator enabling wavefront shaping and beam steering

Xiaofan Guo; Guoyan Dong

doi:10.1117/12.3022686

18 March 2024 Experimental demonstration of photonic crystal resonator enabling wavefront shaping and beam steering

Xiaofan Guo, Guoyan Dong

Proceedings Volume 13104, Advanced Fiber Laser Conference (AFL2023); 131041V (2024) https://doi.org/10.1117/12.3022686
Event: Advanced Fiber Laser Conference (AFL2023), 2023, Shenzhen, China

Abstract

A directional resonator composed of an 8×8 dielectric rod PhC array with square lattice has been proposed to modulate isotropic radiation of point light source into two directional emitting beams. A two-dimensional microwave field scanning system was utilized to experimentally verify the simulation results of photonic crystal (PhC) array resonance and beam manipulation, agreeing well with the simulation predicting strong fundamental resonance at 14.3 GHz near the band edge. The measured internal field reveals uniform phase with a standing wave pattern, and the external field displays highly collimated plane wavefronts. The PhC array resonator transforms an omnidirectional point source into a directed beam emitter, proving band-edge resonance enables wave redirection and self-collimation radiation simultaneously.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Xiaofan Guo and Guoyan Dong "Experimental demonstration of photonic crystal resonator enabling wavefront shaping and beam steering", Proc. SPIE 13104, Advanced Fiber Laser Conference (AFL2023), 131041V (18 March 2024); https://doi.org/10.1117/12.3022686

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