The influence of the doped crystal parameters on the efficiency of laser cooling
A. E. Mikhailov, S. V. Petrushkin

References
1.	Seletskiy D. V., Melgaard S. D., Bigotta S., Di Lieto A., Tonelli M., Epstein R.I., Sheik-Bahae M., “Demonstration of an optical cryocooler”, Int. Quantum Electronics Conf. CLEO/IQEC 2009, IQEC Postdeadline Session, 2009 http://www.opticsinfobase.org/abstract.cfm?URI=IQEC-2009-IPDA9
2.	Petrushkin S. V., Samartsev V. V., Laser cooling of solids, Cambridge Int. Sci. Publ. Ltd, Cambridge, 2009, 236 pp.