تقرير
Relaxation Oscillations of an Exciton-polariton Condensate Driven by Parametric Scattering
| العنوان: | Relaxation Oscillations of an Exciton-polariton Condensate Driven by Parametric Scattering |
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| المؤلفون: | Tian, Chuan, Chen, Linqi, Zhang, Yingjun, Zhu, Liqing, Hu, Wenping, Pan, Yichun, Wang, Zheng, Zhang, Fangxin, Zhang, Long, Dong, Hongxing, Zhou, Weihang |
| سنة النشر: | 2022 |
| المجموعة: | Condensed Matter Physics (Other) |
| مصطلحات موضوعية: | Physics - Optics, Condensed Matter - Mesoscale and Nanoscale Physics |
| الوصف: | We report observation of coherent oscillations in the relaxation dynamics of an exciton-polariton condensate driven by parametric scattering processes. As a result of the interbranch scattering scheme and the nonlinear polariton-polariton interactions, such parametric scatterings exhibit high scattering efficiency, which leads to fast depletion of the polariton condensate and periodic shut-off of the bosonic stimulation processes, eventually causing relaxation oscillations. Employing polariton-reservoir interactions, the oscillation dynamics in the time domain can be projected onto the energy space. In theory, our simulations using the open-dissipative Gross-Pitaevskii equation are in excellent agreement with experimental observations. Surprisingly, the oscillation patterns are clearly visible in our time-integrated images including many excitation pulses, implying the high stability of the relaxation oscillations driven by polariton parametric scatterings. |
| نوع الوثيقة: | Working Paper |
| DOI: | 10.1021/acs.nanolett.2c00235 |
| URL الوصول: | http://arxiv.org/abs/2201.07585 |
| رقم الأكسشن: | edsarx.2201.07585 |
| قاعدة البيانات: | arXiv |
| DOI: | 10.1021/acs.nanolett.2c00235 |
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