Mercurous Bromide (Hg2Br2) Acousto-Optic Tunable Filters (AOTFs) for the Long Wavelength Infrared (LWIR) Region
| Autor: | Feng Jin, Sudhir Trivedi, Mark Diestler, Priyanthi M. Amarasinghe, James O. Jensen, Neelam Gupta, Jolanta Soos, Janet L. Jensen, Syed B. Qadri, Joo-Soo Kim |
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| Rok vydání: | 2021 |
| Předmět: |
Diffraction
Materials science Solid-state physics business.industry Infrared Condensed Matter Physics Electronic Optical and Magnetic Materials Long wavelength chemistry.chemical_compound Full width at half maximum Quality (physics) Reflection (mathematics) chemistry Bromide Materials Chemistry Optoelectronics Electrical and Electronic Engineering business |
| Zdroj: | Journal of Electronic Materials. 50:5774-5779 |
| ISSN: | 1543-186X 0361-5235 |
| Popis: | This paper describes the development of acousto-optic tunable filter (AOTF) devices that are fabricated using in-house grown, high-quality single crystals of mercurous bromide (Hg2Br2). The Hg2Br2 crystals were grown using physical vapor transport (PVT). The quality of the Hg2Br2 single crystals are determined using high-resolution x-ray diffraction (HRXRD). The full width at half maximum (FWHM) of the (220) reflection was found to be 0.029 degrees, which is a significant improvement in the growth of Hg2Br2 bulk single crystals. The diffraction efficiencies of the fabricated AOTF device in the long wavelength infrared (LWIR) found to be 26% which is the highest reported. The device was tested for point detection and for imaging capabilities in the LWIR range. The study shows promising results using Hg2Br2 in LWIR AOTF-based technologies. |
| Databáze: | OpenAIRE |
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