Laser and thermal properties of Nd:YGd 2 Sc 2 Al 2 GaO 12 garnet ceramic
| Autor: | Georges Boulon, G Alombert-Goget, Alain Brenier, Yannick Guyot |
|---|---|
| Přispěvatelé: | Laboratoire de Physico-Chimie des Matériaux Luminescents (LPCML), Centre National de la Recherche Scientifique (CNRS)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon |
| Jazyk: | angličtina |
| Rok vydání: | 2012 |
| Předmět: |
Materials science
Physics and Astronomy (miscellaneous) Analytical chemistry 02 engineering and technology 01 natural sciences law.invention 010309 optics [SPI]Engineering Sciences [physics] 020210 optoelectronics & photonics Optics Thermal conductivity law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering [CHIM]Chemical Sciences Ceramic Absorption (electromagnetic radiation) Instrumentation ComputingMilieux_MISCELLANEOUS [PHYS]Physics [physics] Laser diode business.industry Slope efficiency Laser Thermal transmittance visual_art visual_art.visual_art_medium M squared business |
| Zdroj: | Laser Physics Letters Laser Physics Letters, IOP Publishing, 2012, 9 (10), pp.697-703. ⟨10.7452/lapl.201210063⟩ |
| ISSN: | 1612-2011 1612-202X |
| DOI: | 10.7452/lapl.201210063⟩ |
| Popis: | The absorption and fluorescence properties of the Nd-doped YGd2Sc2Al2GaO12 mixed garnet ceramics have been measured at different temperatures. Under laser diode pumping an efficient laser emission has been demonstrated with 45% slope efficiency. The emission is constituted by two lines at 1058.6 and 1061.3 nm, subjected to a red shift and a variable relative intensity versus pump power. The role of the temperature has been investigated playing with the cavity parameters. The thermal conductivity of the 1% Nd-doped material has been determined (3.2 W/m/K) measuring the radial temperature distribution of the exit face of the sample including the axial heat flow in the analysis. The M2 beam quality factor and the dioptric power of the thermal lens have been investigated versus the pump power. The thermo-optic coefficient χ was determined as 44.4×10-6 K-1. |
| Databáze: | OpenAIRE |
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