Local internal and bulk optical cooling in Nd-doped crystals and nanocrystalline powders
Ángel J. García-Adeva, Rolindes B. Balda, M. Al-Saleh +1 more
The first experimental demonstration of local internal and bulk optical cooling in samples of Nd-doped KPb2Cl5 crystals and Nd-doped KPb2Cl5 nanocrystalline powders upon laser excitation between the 4F3/2 and 4F5/2 manifolds is reported. The possibility of controlling the dynamics of the bulk optical cooling process by adequately tuning the excitation wavelength is also demonstrated.
Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE•Feb 11, 2010•3 citations