Title :
THz spectrum of Cr3+:LiSrAlF6 crystal
Author :
Hou, Bihui ; Wang, Yali ; Zhao, Guozhong ; Tianhua Meng
Author_Institution :
Coll. of Appl. Sci., Beijing Univ. of Technol., Beijing
Abstract :
Absorption coefficient epsiv(nu) and dielectric coefficient epsiv(nu) of crystal Cr3+:LiSrAlF6 were obtained by THz time domain spectroscopy (THz-TDS) in the range of 0.2-1.2THz. The infrared transmission spectrum R(kappa) was measured from 6.7 cm-1(0.2 THz) to 4000 cm-1. There is a band of the phonon absorption in the crystal. The frequency omegaLO of the longitudinal optical phonon model LO is about 236 THz. And the omegaTO of the transverse optical phonon model TO is about 9.42 THz.
Keywords :
absorption coefficients; chromium; infrared spectra; lithium compounds; permittivity; phonons; strontium compounds; submillimetre wave spectra; LiSrAlF6:Cr3+; THz time domain spectroscopy; absorption coefficient; dielectric coefficient; frequency 0.2 THz to 1.2 THz; infrared transmission spectrum; longitudinal optical phonon model; transverse optical phonon model; wave number 6.7 cm-1 to 4000 cm-1; Absorption; Chromium; Crystallization; Dielectric measurements; Frequency; Optical pulse generation; Phonons; Pulse measurements; Spectroscopy; Stimulated emission;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves, 2008. IRMMW-THz 2008. 33rd International Conference on
Conference_Location :
Pasadena, CA
Print_ISBN :
978-1-4244-2119-0
Electronic_ISBN :
978-1-4244-2120-6
DOI :
10.1109/ICIMW.2008.4665414
