Excitonic versus Free-Carrier Contributions to the Nonlinearly Excited Photoluminescence in CsPbBr3 Perovskites

D Khmelevskaia, D Markina, P Tonkaev… - Acs …, 2021 - ACS Publications
Nonlinear optical absorption of light and efficient luminescence in halide perovskites are
important photophysical processes, which can be employed for efficient light conversion …

Kagome lattice from an exciton-polariton perspective

DR Gulevich, D Yudin, IV Iorsh, IA Shelykh - Physical Review B, 2016 - APS
We study a system of microcavity pillars arranged into a kagome lattice. We show that
polarization-dependent tunnel coupling of microcavity pillars leads to the emergence of the …

Long-distance coupling and energy transfer between exciton states in magnetically controlled microcavities

M Ściesiek, K Sawicki, W Pacuski, K Sobczak… - Communications …, 2020 - nature.com
Coupling of quantum emitters in a semiconductor relies, generally, on short-range dipole-
dipole or electronic exchange type interactions. Consistently, energy transfer between …

Giant spin-selective bandgap renormalization in colloidal nanocrystals

M Shrivastava, A Hazarika, J Aneesh, D Mandal… - Physical Review B, 2022 - APS
The spin-dependence of the strongly correlated phenomena and many-body interactions
play an important role in quantum information science. In particular, it is quite interesting but …

Topological spin Meissner effect in spinor exciton-polariton condensate: Constant amplitude solutions, half-vortices, and symmetry breaking

DR Gulevich, DV Skryabin, AP Alodjants, IA Shelykh - Physical Review B, 2016 - APS
We generalize the spin Meissner effect for an exciton-polariton condensate confined in
annular geometries to the case of nontrivial topology of the condensate wave function. In …

Unconventional Bloch-Grüneisen Scattering in Hybrid Bose-Fermi Systems

KHA Villegas, M Sun, VM Kovalev, IG Savenko - Physical Review Letters, 2019 - APS
We report on the novel mechanism of electron scattering in hybrid Bose-Fermi systems
consisting of a two-dimensional electron gas in the vicinity of an exciton condensate: We …

Magnetic field effect on the lasing threshold of a semimagnetic polariton condensate

JG Rousset, B Piętka, M Król, R Mirek, K Lekenta… - Physical Review B, 2017 - APS
We evidence magnetic field triggered polariton lasing in a microcavity containing
semimagnetic quantum wells. This effect is associated with a decrease of the polariton …

Angular dependence of giant Zeeman effect for semimagnetic cavity polaritons

R Mirek, M Król, K Lekenta, JG Rousset, M Nawrocki… - Physical Review B, 2017 - APS
The observation of spin-related phenomena of microcavity polaritons has been limited due
to the weak Zeeman effect of nonmagnetic semiconductors. We demonstrate that the …

Bogolon-mediated electron scattering in graphene in hybrid Bose-Fermi systems

M Sun, KHA Villegas, VM Kovalev, IG Savenko - Physical Review B, 2019 - APS
We study electron scattering in graphene in hybrid Bose-Fermi systems. We calculate the
energy-dependent electron relaxation time, accounting for the processes of emission and …

Relaxation oscillations and ultrafast emission pulses in a disordered expanding polariton condensate

M Pieczarka, M Syperek, Ł Dusanowski, A Opala… - Scientific Reports, 2017 - nature.com
Semiconductor microcavities are often influenced by structural imperfections, which can
disturb the flow and dynamics of exciton-polariton condensates. Additionally, in exciton …