Random Laser Based on Materials in the Form of Complex Network Structures

The theory of a random laser with an interface in the form of random or scale-free networks whose nodes are occupied by microcavities with quantum two-level systems has been proposed for the first time. The microcavities are coupled to each other through light-guiding channels forming edges of the n...

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Bibliographic Details
Published in:JETP letters 2023-06, Vol.117 (11), p.814-820
Main Authors: Bazhenov, A. Yu, Nikitina, M. M., Tsarev, D. V., Alodjants, A. P.
Format: Article
Language:English
Subjects:
Atomic
Biological and Medical Physics
Biophysics
Eigenvalues
Laser applications
Microcavities
Molecular
Optical and Plasma Physics
Optics and Laser Physics
Particle and Nuclear Physics
Physics
Physics and Astronomy
Quantum Information Technology
Solid State Physics
Spintronics
Statistical analysis
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Summary:The theory of a random laser with an interface in the form of random or scale-free networks whose nodes are occupied by microcavities with quantum two-level systems has been proposed for the first time. The microcavities are coupled to each other through light-guiding channels forming edges of the network. It has been shown that such a laser has a number of spectral features associated with the statistical properties of the network structure. Among them are the existence of a topologically protected Perron eigenvalue caused by the presence of a strong mean field at the node of maximum influence located in the central part of the network and the delocalization/localization of radiation modes depending on the probability of coupling between arbitrary microcavities. The results obtained in this work open prospects for the fabrication of new low-threshold laser sources.
ISSN:0021-3640
1090-6487
DOI:10.1134/S0021364023601264