Polarization-Sensitive Photodetector Based on GaAs1−xNx
| Autor: | Alejandro Kunold, Andrea Balocchi, V. K. Kalevich, Xavier Marie, V. G. Ibarra-Sierra, J. C. Sandoval-Santana, R. S. Joshya, Thierry Amand, L. A. Bakaleinikov, Hélène Carrère, E. L. Ivchenko |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Physics
Degree (graph theory) General Physics and Astronomy 02 engineering and technology Electron 021001 nanoscience & nanotechnology 01 natural sciences Ray Paramagnetism Light intensity 0103 physical sciences Sensitivity (control systems) Atomic physics 010306 general physics 0210 nano-technology Hyperfine structure Circular polarization |
| Zdroj: | Physical Review Applied. 15 |
| ISSN: | 2331-7019 |
| DOI: | 10.1103/physrevapplied.15.064040 |
| Popis: | We propose and numerically simulate an optoelectronic compact circular polarimeter. It allows for electrical measurement of the degree of circular polarization and light intensity at room temperature for a wide range of incidence angles in a single shot. The device, being based on ${\mathrm{Ga}\mathrm{As}}_{1\ensuremath{-}x}{\mathrm{N}}_{x}$, is easy to integrate into standard electronics and does not require bulky movable parts nor extra detectors. Its operation hinges mainly on two phenomena: the spin-dependent capture of electrons and the hyperfine interaction between bound electrons and nuclei on ${\mathrm{Ga}}^{2+}$ paramagnetic centers in ${\mathrm{Ga}\mathrm{As}}_{1\ensuremath{-}x}{\mathrm{N}}_{x}$. The first phenomenon confers the device with sensitivity to the degree of circular polarization and the latter phenomenon allows one to discriminate the handedness of the incident light. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|