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5 March 2022 Bound states in the continuum in one-dimensional grating implemented on distributed Bragg reflector
Emilia Pruszynska-Karbownik, Tomasz G. Czyszanowski
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Proceedings Volume PC12009, Quantum Sensing and Nano Electronics and Photonics XVIII; PC120090W (2022) https://doi.org/10.1117/12.2606411
Event: SPIE OPTO, 2022, San Francisco, California, United States
Abstract
Bound states in the continuum (BICs) can be observed in photonic crystal slabs embedded in low refractive index surroundings that makes challenging their realization. Here we propose a configuration implemented on a high refractive index bulk substrate with a one-dimensional grating positioned on a distributed Bragg reflector (DBR). Judiciously designed DBR reflects all diffraction orders induced by the grating entirely eliminating radiative losses. The configuration enables a high degree of design freedom facilitating the realization of very high quality factor cavities in conventional all-semiconductor technology.
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Emilia Pruszynska-Karbownik and Tomasz G. Czyszanowski "Bound states in the continuum in one-dimensional grating implemented on distributed Bragg reflector", Proc. SPIE PC12009, Quantum Sensing and Nano Electronics and Photonics XVIII, PC120090W (5 March 2022); https://doi.org/10.1117/12.2606411
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KEYWORDS
Distributed Bragg reflectors
Refractive index
Diffraction gratings
Diffraction
Liquids
Optical design
Optical resonators
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