Multiphonon relaxation in fluoride and ternary sulfide laser crystals with neodymium ions
Journal Article
·
· Journal of Experimental and Theoretical Physics
- Russian Academy of Sciences, Prokhorov General Physics Institute (Russian Federation)
It is shown that, in ternary sulfide crystal matrices, in contrast to fluoride matrices with similar phonon spectra, the multiphonon relaxation rate as a function of the number p{sub eff} of 'effective phonons' (the energy gap {delta}E{sub min} between the J' and J levels of the Nd{sup 3+} ion) has a steep slope, which does not decrease with increasing p{sub eff}. This indicates that, compared to fluoride crystals, the multiphonon relaxation rate of mid-IR transitions (in the range 4-5 {mu}m) in ternary sulfide matrices sharply decreases, by three to four orders of magnitude.
- OSTI ID:
- 21242040
- Journal Information:
- Journal of Experimental and Theoretical Physics, Vol. 106, Issue 4; Other Information: DOI: 10.1134/S1063776108040043; Copyright (c) 2008 Pleiades Publishing, Ltd; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
- Country of Publication:
- United States
- Language:
- English
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