Upmost efficiency, few-micron-sized midwave infrared HgCdTe photodetectors
Optics
2019-05-29 v1 Applied Physics
Abstract
A few-micron thick structure that shows nearly 100% resonant polarized absorptance at a predefined midinfrared wavelength is designed and simulated. Like resonant-cavity enhanced photodetector structure, it contains a thin absorber enclosed in a dielectric cavity but surrogates the mirrors by two grating-on-layer structures. Fair manufacturing tolerance while maintaining high peak efficiency is proved. Electromagnetic fields amplitudes and Poynting vector over the cavity-absorber area are visualized and topology of electromagnetic power flow for two linear polarizations is discussed.
Keywords
Cite
@article{arxiv.1905.11792,
title = {Upmost efficiency, few-micron-sized midwave infrared HgCdTe photodetectors},
author = {Roy Avrahamy and Moshe Zohar and Mark Auslender and Zeev Fradkin and Benny Milgrom and Rafi Shikler and Shlomo Hava},
journal= {arXiv preprint arXiv:1905.11792},
year = {2019}
}
Comments
11 pages, 7 figures, to appear in Applied Optics