Gapless fluctuations and exceptional points in semiconductor lasers
Source abstract
Abstract
Semiconductor lasers have formal analogies to Bardeen-Cooper-Schrieffer (BCS) superconductors. This work shows that, in analogy to gapless superconductivity, a gapless lasing parametric regime, in which the frequency gap in the fluctuation spectrum is closed, exists for steady-state semiconductor lasers. The gap opens when the laser intensity exceeds a threshold. This gapless-to-gapped transition occurs at a third-order exceptional point.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Strong Light-Matter Interactions · Cold Atom Physics and Bose-Einstein Condensates · Semiconductor Quantum Structures and Devices
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Wyant College of Optical Sciences, The University of Arizona, Tucson, Arizona 85721, USA
Department of Physics, The University of Arizona, Tucson, Arizona 85721, USA
Funding
National Science Foundation · University of Arizona
References (78)
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