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5 March 2022 Tuning the reflectivity of a monolithic HCG mirror by modifying the spatial parameters
Magdalena Marciniak, Artur Broda, Marcin Gebski, Jan Muszalski, James A. Lott, Tomasz Czyszanowski
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Proceedings Volume PC12010, Photonic and Phononic Properties of Engineered Nanostructures XII; PC120100I (2022) https://doi.org/10.1117/12.2610158
Event: SPIE OPTO, 2022, San Francisco, California, United States
Abstract
Monolithic High Contrast Gratings (MHCGs) are a special type of high-contrast grating (HCGs). In MHCGs, the stripes and the substrate on which they are implemented are made of the same material. MHCGs provide up to 100% power reflectance and thus are expected to find numerous applications in modern optoelectronics. We present thorough experimental analysis of spectral properties of GaAs MHCG mirrors designed at the wavelength of 1000 nm. Our results show that MHCG mirrors can be high-reflectivity mirrors as well as efficient polarizer and their properties can be modified by variation of lateral parameters of MHCG stripes.
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Magdalena Marciniak, Artur Broda, Marcin Gebski, Jan Muszalski, James A. Lott, and Tomasz Czyszanowski "Tuning the reflectivity of a monolithic HCG mirror by modifying the spatial parameters", Proc. SPIE PC12010, Photonic and Phononic Properties of Engineered Nanostructures XII, PC120100I (5 March 2022); https://doi.org/10.1117/12.2610158
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KEYWORDS
Mirrors
Reflectivity
Optoelectronics
Refractive index
Etching
Gallium arsenide
Optical lithography
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