Optical bistability in layered InSe crystal.

Autor: Salmanov, V. M., Huseynov, A. G., Rzayev, R. M., Rzayev, U. R., Mammadov, R. M., Aliyeva, A. M.
Předmět:
Zdroj: International Journal of Modern Physics B: Condensed Matter Physics; Statistical Physics; Applied Physics; 7/20/2023, Vol. 37 Issue 18, p1-7, 7p
Abstrakt: In this study, we experimentally study the dependence of the intensity of laser radiation incident on and transmitted through a layered InSe crystal. A picosecond YAG:Nd3+ laser with a parametric light generator was used as a light source, making it possible to generate light pulses with a duration of ∼ 30 ps, tunable in frequency within the range of 0.75–1.5 μm. Optical bistability in the region of exciton resonance was detected in an InSe crystal at room-temperature under the picosecond YAG:Nd laser. It is shown that the decrease in absorption in the exciton resonance region is associated with the process of exciton–exciton interaction, shielding of excitons, and the Mott transition. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index