25%Eu : KGd(WO4)2laser crystal: spectroscopy and lasing on the5D0→7F4transition
| Autor: | Valentin A. Orlovich, Sergei Vatnik, A M Yurkin, Sergei N Bagaev, Anatoly Pavlyuk, V. I. Dashkevich |
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| Rok vydání: | 2011 |
| Předmět: |
Materials science
business.industry Statistical and Nonlinear Physics Laser Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials Ion law.invention Crystal Wavelength Absorption band law Optoelectronics Stimulated emission Electrical and Electronic Engineering business Spectroscopy Lasing threshold |
| Zdroj: | Quantum Electronics. 41:189-192 |
| ISSN: | 1468-4799 1063-7818 |
| DOI: | 10.1070/qe2011v041n03abeh014495 |
| Popis: | 25%Eu : KGd(WO4)2 crystal is grown by a modified Czochralski method and its spectral and lasing properties are studied. Generation of stimulated emission in this crystal on the 5D0→7F4 transition of the Eu3+ ion is obtained, as far as we know, for the first time. The laser operates at room temperature at a wavelength of ~703 nm under pumping into the 7F0→5D1 absorption band of the europium ion by the second harmonic of a Q-switched Nd : KGW laser (λpump= 533.6 nm). With a 9.4-mm-long active element, the output energy in the free-running regime reached 244 μJ, while the optical efficiency was 1.5%. |
| Databáze: | OpenAIRE |
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