Resonant Optical Reflection from AsSb–AlGaAs Metamaterials and Structures
- Авторы: Ushanov V.1, Chaldyshev V.1, Preobrazhenskiy V.2, Putyato M.2, Semyagin B.2
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Учреждения:
- Ioffe Institute
- Rzhanov Institute of Semiconductor Physics
- Выпуск: Том 52, № 4 (2018)
- Страницы: 468-472
- Раздел: XXV International Symposium “Nanostructures: Physics and Technology”, Saint Petersburg, June 26–30, 2017. Optoelectronics, Optical Properties
- URL: https://journals.rcsi.science/1063-7826/article/view/202807
- DOI: https://doi.org/10.1134/S1063782618040292
- ID: 202807
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Аннотация
The optical reflection in periodic structures based on a semiconductor AlGaAs matrix containing two-dimensional arrays of plasmonic AsSb nanoinclusions was studied. The number of periods was 12 or 24. The spatial period was near 110 nm in both cases. In the experimental optical reflection spectra at normal incidence we observed resonant Bragg diffraction with the main peaks at wavelengths of 757 or 775 nm, depending on the spatial period of the nanostructure. The magnitudes of the resonance peaks reached 19 and 31% for the systems of 12 and 24 AsSb–AlGaAs layers, while the volume fraction of the nanoinclusions was much less than 1%. In the case of light incident at inclined angles, the Bragg-diffraction pattern shifted according to Wulff-Bragg’s law. Numerical calculations of the optical reflection spectra were performed using the transfer-matrix method by taking into account the spatial geometry of the structures and the resonance characteristics of the plasmonic AsSb layers.
Об авторах
V. Ushanov
Ioffe Institute
Автор, ответственный за переписку.
Email: Decorus2009@mail.ru
Россия, St. Petersburg
V. Chaldyshev
Ioffe Institute
Email: Decorus2009@mail.ru
Россия, St. Petersburg
V. Preobrazhenskiy
Rzhanov Institute of Semiconductor Physics
Email: Decorus2009@mail.ru
Россия, Novosibirsk
M. Putyato
Rzhanov Institute of Semiconductor Physics
Email: Decorus2009@mail.ru
Россия, Novosibirsk
B. Semyagin
Rzhanov Institute of Semiconductor Physics
Email: Decorus2009@mail.ru
Россия, Novosibirsk