Open AccessControlling the lasing modes in random lasers operating in the Anderson localization regime
Author(s) -
Mohammad Rashidi,
Ziyuan Li,
Chennupati Jagadish,
Sudha Mokkapati,
Hark Hoe Tan
Publication year - 2021
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.441003
Subject(s) - lasing threshold , randomness , random laser , laser , gain switching , anderson localization , optics , semiconductor laser theory , wavelength , optoelectronics , scattering , physics , materials science , condensed matter physics , mathematics , statistics
Random lasers, which rely on random scattering events unlike traditional Fabry-Pérot cavities, are much simpler and cost-effective to fabricate. However, because of the chaotic fluctuations and instability of the lasing modes, controlling the lasing properties is challenging. In this study, we use random InP nanowire (NW) arrays that operate in the Anderson localization regime with stable modes as the random lasers. We show that by changing the design parameters of the NW arrays, such as filling factor, dimensions of the NWs, degree of randomness, and the size of the array, the properties of the lasing modes including the number of modes, lasing wavelengths, and lasing threshold can be controlled.