Journal
OPTICS EXPRESS
Volume 29, Issue 19, Pages 30715-30726Publisher
Optica Publishing Group
DOI: 10.1364/OE.436133
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Funding
- Ministerio de Ciencia, Innovacion y Universidades [MAT2017-88358-C3-2-R]
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Absorption induced transparency is an optical phenomenon that occurs when materials with narrow lines in their absorption spectra are deposited on plasmonic nanostructures, enhancing stimulated light emission and providing better optical feedback for the emission process.
Absorption induced transparency is an optical phenomenon that occurs in plasmonic nanostructures when materials featuring narrow lines in their absorption spectra are deposited on top of it. First reported in the visible range for metallic arrays of nanoholes, using dye lasers as covering, it has been described as transmission peaks unexpectedly close to the absorption energies of the dye. In this work, amplification of stimulated light emission is numerically demonstrated in the active regime of absorption induced transparency. Amplification can be achieved in the regime where the dye laser behaves as a gain material. Intense illumination can modify the dielectric constant of the gain material in a short span of time and thus the propagation properties of the plasmonic modes excited in the hole arrays, providing both less damping to light and further optical feedback that enhances the stimulated emission process. (C) 2021 Optical Society of America under the terms of the OSA Open Access Publishing Agreement
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