A. N. Yablonskii, D. V. Yurasov, V. E. Zakharov, A. V. Peretokin, M. V. Stepikhova, M. V. Shaleev, D. V. Shengurov, E. E. Rodyakina, Zh. V. Smagina, S. A. Dyakov, A. V. Novikov, “Effect of optical excitation conditions on the spectral and temporal characteristics of the radiation from two-dimensional photonic crystals with Ge(Si) nanoislands”, Fizika i Tekhnika Poluprovodnikov, 2023, Volume 57, Issue 4,Pages <nobr>251

XXVII International Symposium "Nanophysics and Nanoelectronics", Nizhny Novgorod, 13 - 16 March 2023

Effect of optical excitation conditions on the spectral and temporal characteristics of the radiation from two-dimensional photonic crystals with Ge(Si) nanoislands

A. N. Yablonskii^a, D. V. Yurasov^a, V. E. Zakharov^a, A. V. Peretokin^a, M. V. Stepikhova^a, M. V. Shaleev^a, D. V. Shengurov^a, E. E. Rodyakina^bc, Zh. V. Smagina^b, S. A. Dyakov^d, A. V. Novikov^ae

^a Institute for Physics of Microstructures, Russian Academy of Sciences, Nizhny Novgorod, Russia
^b Rzhanov Institute of Semiconductor Physics, Siberian Branch of Russian Academy of Sciences, Novosibirsk
^c Novosibirsk State University, Novosibirsk, Russia
^d Skolkovo Institute of Science and Technology, Moscow, Russia
^e National Research Lobachevsky State University of Nizhny Novgorod, Nizhny Novgorod, Russia

Abstract: The effect of optical excitation conditions on the spectral and temporal characteristics of the radiation from two-dimensional photonic crystals based on the structures with self-assembled Ge(Si) nanoislands has been studied. It was shown that one of the main factors effecting the spectral position and shape of photoluminescence lines, as well as the photoluminescence kinetics of photonic crystals with Ge(Si) nanoislands, along with the mode structure of the photonic crystal, are the local heating of the samples and the concentration of nonequilibrium charge carriers created by the absorption of the pumping radiation.

Keywords: self-assembled Ge(Si) nanoislands, two-dimensional photonic crystals, micro-PL spectroscopy, time-resolved PL studies.

Received: 05.05.2023
Revised: 19.06.2023
Accepted: 20.06.2023

DOI: 10.21883/FTP.2023.04.55894.08k