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Title: Fresnel reflection from a cavity with net roundtrip gain

A planewave incident on an active etalon with net roundtrip gain may be expected to diverge in field amplitude, yet applying the Fresnel formalism to Maxwell's equations admits a convergent solution. We describe this solution mathematically and provide additional insight by demonstrating the response of such a cavity to an incident beam of light. Cavities with net roundtrip gain have often been overlooked in the literature, and a clear understanding of their behavior yields insight to negative refraction in nonmagnetic media, a duality between loss and gain, amplified total internal reflection, and the negative-index lens.
Authors:
 [1] ;  [2]
  1. Department of Physics, Harvard University, Cambridge, Massachusetts 02138 (United States)
  2. College of Optical Sciences, The University of Arizona, Tucson, Arizona 85721 (United States)
Publication Date:
OSTI Identifier:
22258604
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 104; Journal Issue: 12; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; CAVITIES; FRESNEL REFLECTORS; MATHEMATICAL SOLUTIONS; MAXWELL EQUATIONS; REFLECTION