Phonon participation in ultrafast nonradiative processes in Cr:Mg/sub 2/SiO/sub 4/ laser crystal

Author

Demos, Stavros G. ; Calistru, D.M. ; Alfano, Robert R.

Author_Institution

Inst. for Ultrafast Spectrosc. & Lasers, City Coll. of New York, NY, USA

fYear

1996

fDate

7-7 June 1996

Firstpage

50

Abstract

Summary form only given. Ion-lattice coupling between different local (impurity)-phonon (lattice) modes is considered the main factor that determines the dynamics of nonradiative processes in impurity-doped solid-state lasers. Although critical, this problem is not yet completely understood. We have investigated the phonons involved in nonradiative processes in Cr:Mg/sub 2/SiO/sub 4/ by using time-resolved Raman scattering and upconverted hot luminescence.

Keywords

Raman spectra; chromium; high-speed optical techniques; impurities; impurity absorption spectra; laser variables measurement; optical materials; phonons; photoluminescence; solid lasers; time resolved spectra; Cr:Mg/sub 2/SiO/sub 4/ laser crystal; Ion-lattice coupling; Mg/sub 2/SiO/sub 4/:Cr; impurity-doped solid-state lasers; local impurity-phonon lattice mode coupling; nonradiative processes; phonon participation; time-resolved Raman scattering; ultrafast nonradiative processes; upconverted hot luminescence; Chromium; Delay; Lattices; Luminescence; Phonons; Photonic crystals; Polarization; Probes; Raman scattering; Resonance;

fLanguage

English

Publisher

ieee

Conference_Titel

Quantum Electronics and Laser Science Conference, 1996. QELS '96., Summaries of Papers Presented at the

Conference_Location

Anaheim, CA, USA

Print_ISBN

1-55752-444-0

Type

conf

Filename

865559