Abstract
AbstractWe demonstrate laser induced cooling in ytterbium doped silica (SiO2) glass with alumina, yttria co-doping (GAYY-Aluminum: Yttrium: Ytterbium Glass) fabricated using the modified chemical vapour deposition (MCVD) technique. A maximum temperature reduction by − 0.9 K from room temperature (296 K) at atmospheric pressure was achieved using only 6.5 W of 1029 nm laser radiation. The developed fabrication process allows us to incorporate ytterbium at concentration of 4 × 1026 ions/m3 which is the highest value reported for laser cooling without clustering or lifetime shortening, as well as to reach a very low background absorptive loss of 10 dB/km. The numerical simulation of temperature change versus pump power well agrees with the observation and predicts, for the same conditions, a temperature reduction of 4 K from room temperature in a vacuum. This novel silica glass has a high potential for a vast number of applications in laser cooling such as radiation-balanced amplifiers and high-power lasers including fiber lasers.
Publisher
Springer Science and Business Media LLC
Reference60 articles.
1. Pringsheim, P. Zwei bemerkungen uber den unterschied von lumineszenz-und temperaturstrahlung. Z. Phys. 57, 739–746 (1929).
2. Epstein, R. I., Buchwald, M. I., Edwards, B. C., Gosnell, T. R. & Mungan, C. E. Observation of laser-induced fluorescent cooling of a solid. Nature 377, 500–503 (1995).
3. Mobini, E. et al. Laser cooling of ytterbium-doped silica glass. Commun. Phys. 3, 134 (2020).
4. Seletskiy, D. V. et al. Laser cooling of solids to cryogenic temperatures. Nat. Photon. 4(3), 161–164 (2010).
5. Epstein, R. I. & Sheik-bahae, M. Optical Refrigeration: Science and Applications of Laser Cooling of Solids (Wiley, 2010).
Cited by
5 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献