网络量子材料耗散隧道条件下的随机激光

IF 1.4 4区 物理与天体物理 Q3 PHYSICS, MULTIDISCIPLINARY JETP Letters Pub Date : 2024-10-15 DOI:10.1134/S0021364024602549
D. V. Tsarev, E. S. Morugin, A. P. Alodjants
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引用次数: 0

摘要

研究揭示了一种基于随机光子网络的随机激光器产生的新机制,这种随机激光器具有光子在微腔之间耗散隧穿的特性,微腔位于随机光子网络的节点,包含相同的两级量子系统。研究表明,隧穿过程中的额外光子损耗源促进了随机激光器单个模式的分离,即使在种群反转极小的情况下也能达到激光阈值。在这种情况下,激光模式的增强具有干涉性质,是由于光子网络节点之间的能量再分配造成的,这些节点对应于随机激光器静态模式与两级系统过渡频率之间频率失谐的不同符号。研究表明,传统的激光机制显示了单个微腔光谱的特征,即几乎不受网络拓扑特性和隧道参数的影响,这种机制存在于零失谐区域。
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Random Lasing under Dissipative Tunneling Conditions in a Network Quantum Material

A new mechanism of the generation of a random laser based on a random photonic network with dissipative tunneling of photons between microcavities that are placed at the nodes of such network and contain identical two-level quantum systems has been revealed. It has been shown that an additional source of photon losses in tunneling promotes the separation of individual modes of the random laser and the achievement of the lasing threshold even at a vanishingly small population inversion. In this case, the enhancement of laser modes has an interference nature and is due to the energy redistribution between the nodes of the photonic network that correspond to different signs of the frequency detuning of stationary modes of the random laser from the transition frequency of two-level systems. It has been shown that the traditional lasing mechanism, which demonstrates features of the spectrum of single microcavities, i.e., is almost independent of the topological properties of the network and the tunneling parameter, is present in the region of zero detuning.

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来源期刊
JETP Letters
JETP Letters 物理-物理:综合
CiteScore
2.40
自引率
30.80%
发文量
164
审稿时长
3-6 weeks
期刊介绍: All topics of experimental and theoretical physics including gravitation, field theory, elementary particles and nuclei, plasma, nonlinear phenomena, condensed matter, superconductivity, superfluidity, lasers, and surfaces.
期刊最新文献
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