Laser oscillation in Cr²⁺:ZnS waveguide thin-film structures under electrical pumping with impact excitation mechanism
The laser oscillation at room temperature in Cr²⁺:ZnS waveguide thin-film structures under electrical pumping with the impact excitation mechanism was first discovered after improvement of some waveguide optical properties. However, lasing turned out to be unstable and ceases soon, which is accom...
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| Datum: | 2011 |
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| Hauptverfasser: | , , , , , |
| Format: | Artikel |
| Sprache: | English |
| Veröffentlicht: |
Інститут фізики напівпровідників імені В.Є. Лашкарьова НАН України
2011
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| Schriftenreihe: | Semiconductor Physics Quantum Electronics & Optoelectronics |
| Online Zugang: | http://dspace.nbuv.gov.ua/handle/123456789/117755 |
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| Назва журналу: | Digital Library of Periodicals of National Academy of Sciences of Ukraine |
| Zitieren: | Laser oscillation in Cr²⁺:ZnS waveguide thin-film structures under electrical pumping with impact excitation mechanism / N.A. Vlasenko, P.F. Oleksenko, M.O. Mukhlyo, P.M. Lytvyn, L.I. Veligura, Z.L. Denisova // Semiconductor Physics Quantum Electronics & Optoelectronics. — 2011. — Т. 14, № 3. — С. 339-343. — Бібліогр.: 16 назв. — англ. |
Institution
Digital Library of Periodicals of National Academy of Sciences of Ukraine| Zusammenfassung: | The laser oscillation at room temperature in Cr²⁺:ZnS waveguide thin-film
structures under electrical pumping with the impact excitation mechanism was first
discovered after improvement of some waveguide optical properties. However, lasing
turned out to be unstable and ceases soon, which is accompanied by strong weakening
the emission recorded from the waveguide edge whereas the emission from the structure
face remains intensive. It is shown that the above changes stem from increasing optical
losses caused by appearance of light scattering in the structure by inhomogeneities
formed during lasing as a consequence the most probably of recrystallization processes in
the Cr:ZnS film. Some ways are proposed to improve the lasing stability |
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