Dynamics of Spinor Exciton‒Polariton Condensates in Double Potential Traps in GaAs/AlAs Microcavities under the Resonance Picosecond Excitation

IF 0.48 Q4 Physics and Astronomy

Bulletin of the Russian Academy of Sciences: Physics Pub Date : 2025-04-24 DOI:10.1134/S1062873824709590

A. A. Demenev, S. N. Tereshko, N. A. Gippius, V. D. Kulakovskii

引用次数: 0

Abstract

The authors study the temporal evolution of polarized spectra of emissions from spinor exciton‒polariton condensates in double tunnel-coupled potential traps inside a high-Q GaAs/AlAs microcavity at 2 K under resonance laser pumping with picosecond pulses at times of up to 1.5 ns. The time of the condensates’ spin relaxation in a double trap is estimated as τ_s ≈ 10 ns. The effect of tunnel interaction and anisotropy of the trap potential on the energy spectrum of the polariton modes and the polarization dynamics of the spinor condensate in tunnel-coupled potential traps is discussed.

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共振皮秒激发下GaAs/AlAs微腔双势阱中自旋子激子-极化子凝聚动力学

本文研究了高q GaAs/AlAs微腔中双通道耦合势阱中自旋激子-极化子凝聚体在2 K下，皮秒脉冲共振激光泵浦时间高达1.5 ns的极化光谱的时间演化。双阱中凝聚体的自旋弛豫时间估计为τs≈10 ns。讨论了隧道耦合势阱中隧道相互作用和阱势各向异性对极化子模式能谱和旋量凝聚体极化动力学的影响。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Bulletin of the Russian Academy of Sciences: Physics Physics and Astronomy-Physics and Astronomy (all)

CiteScore

0.90

自引率

0.00%

发文量

251

期刊介绍： Bulletin of the Russian Academy of Sciences: Physics is an international peer reviewed journal published with the participation of the Russian Academy of Sciences. It presents full-text articles (regular, letters to the editor, reviews) with the most recent results in miscellaneous fields of physics and astronomy: nuclear physics, cosmic rays, condensed matter physics, plasma physics, optics and photonics, nanotechnologies, solar and astrophysics, physical applications in material sciences, life sciences, etc. Bulletin of the Russian Academy of Sciences: Physics focuses on the most relevant multidisciplinary topics in natural sciences, both fundamental and applied. Manuscripts can be submitted in Russian and English languages and are subject to peer review. Accepted articles are usually combined in thematic issues on certain topics according to the journal editorial policy. Authors featured in the journal represent renowned scientific laboratories and institutes from different countries, including large international collaborations. There are globally recognized researchers among the authors: Nobel laureates and recipients of other awards, and members of national academies of sciences and international scientific societies.