Self-absorption and phonon-assisted radiative energy transfer processes in a ruby laser rod
X X Zhang; P Hong; B Di Bartolo; C W Struck; M Bass; X X Zhang; Center for Res. & Educ. in Opt. & Lasers, Univ. of Central Florida, Orlando, FL, USA; P Hong; Center for Res. & Educ. in Opt. & Lasers, Univ. of Central Florida, Orlando, FL, USA; B Di Bartolo; Center for Res. & Educ. in Opt. & Lasers, Univ. of Central Florida, Orlando, FL, USA; C W Struck; Center for Res. & Educ. in Opt. & Lasers, Univ. of Central Florida, Orlando, FL, USA; M Bass; Center for Res. & Educ. in Opt. & Lasers, Univ. of Central Florida, Orlando, FL, USA
Журнал:
Journal of Physics: Condensed Matter
Дата:
1994-06-20
Аннотация:
Systematic investigations of the effect of self-absorption on the dynamic and steady-state spectroscopic properties in ruby have been carried out at different temperatures (from approximately 130 to 500 K) using a long, pink laser rod. At about 140 K,the lengthening of decay times of the R lines reached a maximum and then decreased with increasing geometric trapping. Spectral diffusion as large as 10 cm<sup>-1</sup> was observed in the complete-trapping regime. These observations suggest reexamination of the theoretical model for phonon-assisted radiative energy transfer in ruby.
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