Temperature influence on spectroscopic and lasing properties of blue laser diode pumped Alexandrite crystal

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F18%3A00521865" target="_blank" >RIV/68378271:_____/18:00521865 - isvavai.cz</a>
Alternative codes found
RIV/68407700:21340/18:00324037
Result on the web
<a href="http://dx.doi.org/10.1117/12.2287787" target="_blank" >http://dx.doi.org/10.1117/12.2287787</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1117/12.2287787" target="_blank" >10.1117/12.2287787</a>

Result language
angličtina
Original language name
Temperature influence on spectroscopic and lasing properties of blue laser diode pumped Alexandrite crystal
Original language description
We report on influence of temperature on spectroscopic and lasing properties of Alexandrite (Cr3+:BeAl2O4) crystal. Fluorescence lifetime, polarization-resolved absorption and emission spectra, and laser characteristics at ∼750 nm are described in detail within the 78-400K temperature range. As a pumping source, 3.5W InGaN blue laser-diode operating at 444nm wavelength was used. The best results achieved were at ∼353K crystal temperature — 326mW of continuous output power at 750nm wavelength with the slope efficiency near 20% (related to absorbed pump power). At cryogenic temperatures, the Alexandrite laser generation at the so-called R-line, i.e not in the vibronic mode, has been observed.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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