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- Title
Multiphonon relaxation in fluoride and ternary sulfide laser crystals with neodymium ions.
- Authors
Orlovskii, Yu. V.; Basiev, T. T.; Pukhov, K. K.
- Abstract
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 eff of “effective phonons” (the energy gap Δ E min between the J′ and J levels of the Nd3+ ion) has a steep slope, which does not decrease with increasing p eff. This indicates that, compared to fluoride crystals, the multiphonon relaxation rate of mid-IR transitions (in the range 4–5 μm) in ternary sulfide matrices sharply decreases, by three to four orders of magnitude.
- Subjects
SULFIDE crystals; NEODYMIUM; RADIATIVE transitions; PROPERTIES of matter; PHONONS
- Publication
Journal of Experimental & Theoretical Physics, 2008, Vol 106, Issue 4, p661
- ISSN
1063-7761
- Publication type
Article
- DOI
10.1134/S1063776108040043