Structured Waveguide Grating for Controlled Resonant Reflection

Ivan Avrutsky, Matthew Klein,Shivashankar Vangala,Dennis E. Walker,Evan Smith,Joshua R. Hendrickson

2023 IEEE Research and Applications of Photonics in Defense Conference (RAPID)（2023）

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摘要

Waveguide gratings with structured period provide controllable ratio between coupling coefficients in different diffraction orders and allow for control of resonant reflection spectra. We report conceptual model, numerical studies, and fabrication of GaN structured period waveguide gratings designed for the mid-IR spectral range.

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关键词

resonant waveguide gratings,mid-IR,narrow-band optical filtering

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