期刊
MATERIALS
卷 15, 期 6, 页码 -出版社
MDPI
DOI: 10.3390/ma15062084
关键词
solid-state lasers; rare-earth doped laser materials; infrared laser; diode-pumped lasers; thulium lasers; thulium-doped mixed laser ceramics; mixed-sesquioxide ceramics
This paper reviews the latest results of solid-state lasers based on thulium-doped mixed-sesquioxide ceramics, discussing their applications in various fields and the optical and thermal properties of the ceramics. The manuscript also compares the performance of these ceramics with corresponding crystals.
This paper is devoted to reviewing the latest results achieved in solid-state lasers based on thulium-doped mixed-sesquioxide ceramics, i.e., (Lu,Sc,Y)(2)O-3. The near- and mid-infrared regions are of interest for many applications, from medicine to remote sensing, as they match molecular fingerprints and cover several atmospheric transparency windows. These matrices are characterized by a strong electron-phonon interaction-which results in a large splitting of the ground state-and by a spectral broadening of the optical transition suitable for developing tunable and short-pulse lasers. In particular, the manuscript reports on the trivalent thulium laser transitions at 1.5, 1.9, and 2.3 mu m, along with the thermal and optical characteristics of the (Lu,Sc,Y)(2)O-3 ceramics, including the fabrication techniques, spectroscopic and optical properties, and laser performances achieved in different pumping regimes, such as continuous-wave (CW), quasi-CW, and pulsed modes. A comparison of the performance obtained with these mixed-sesquioxide ceramics and with the corresponding crystals is reported.
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