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This article is cited in 11 scientific papers (total in 11 papers)
Active media, lasers, and amplifiers
Conversion of the luminescence of laser dyes in opal matrices to stimulated emission
O. K. Alimova, T. T. Basievb, Yu. V. Orlovskiib, V. V. Osikob, M. I. Samoilovichc a Institute of Nuclear Physics, Academy of Sciences of Uzbekistan, Tashkent
b Laser Materials and Technology Research Center, Prokhorov General Physics Institute, RAS, Moscow
c Tekhnomash Central Research Technological Institute, Moscow
Abstract:
The luminescence and laser characteristics of a synthetic opal matrix filled with organic dyes are studied upon excitation by nanosecond laser pulses. The appearance of stimulated emission in a partially ordered scattering medium is investigated. It is shown that if the luminescence spectrum of a dye (oxazine-17) is located far outside the photonic bandgap of the opal matrix, stimulated emission along a preferential direction in the (111) plane is observed when pumping exceeds a threshold even without an external optical cavity. The stimulated emission spectrum is considerably narrower than the luminescence spectrum and consists of several narrow lines located within the dye luminescence band. If the luminescence spectrum of a dye (rhodamine 6G) overlaps with the photonic bandgap of the opal matrix, a different picture is observed. The loss of radiation in the matrix leads to the red shift of the luminescence spectrum, while the stimulated emission as in the case of oxazine-17 lies is observed within the luminescence band.
Received: 23.10.2007
Citation:
O. K. Alimov, T. T. Basiev, Yu. V. Orlovskii, V. V. Osiko, M. I. Samoilovich, “Conversion of the luminescence of laser dyes in opal matrices to stimulated emission”, Kvantovaya Elektronika, 38:7 (2008), 665–669 [Quantum Electron., 38:7 (2008), 665–669]
Linking options:
https://www.mathnet.ru/eng/qe13714 https://www.mathnet.ru/eng/qe/v38/i7/p665
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