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

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Abstract

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.

About the authors

A. Yu Bazhenov

ITMO University, 197101, St. Petersburg, Russia

Email: alexander_ap@list.ru

M. M Nikitina

ITMO University, 197101, St. Petersburg, Russia

Email: alexander_ap@list.ru

D. V Tsarev

ITMO University, 197101, St. Petersburg, Russia

Email: alexander_ap@list.ru

A. P Alodzhants

ITMO University, 197101, St. Petersburg, Russia

Author for correspondence.
Email: alexander_ap@list.ru

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