Title :
THz spectrum of KDP crystal
Author :
Hou, Bihui ; Li, Shunsuo ; Wang, Yali ; Zhao, Guozhong ; Meng, Wei ; Chang, Xinan
Author_Institution :
Coll. of Appl. Sci., Beijing Univ. of Technol., Beijing
Abstract :
THz time domain spectrum of KH2PO4 crystal has been measured in the range from 0.2 THz to 1.6 THz. Ultraviolet-visible-infrared spectra have been measured in the range from 190 nm to 1600 nm at the room temperature. The energy band gap Eg of KH2PO4 crystal is 5.90 eV. There is a wide band of the phonon absorption in the KDP crystal. The frequency omegaLO of the longitudinal optical phonon model LO is about 1.29times1015 Hz. Frequency omegaTO of the transverse optical phonon model TO is about 6.28times1012Hz.
Keywords :
energy gap; infrared spectra; optical materials; phonons; potassium compounds; submillimetre wave spectra; ultraviolet spectra; visible spectra; KDP; KDP crystal; energy band gap; frequency 0.2 THz to 1.6 THz; frequency 1290000000000000 Hz; frequency 6280000000000 Hz; longitudinal optical phonon model; phonon absorption; room temperature measurement; temperature 293 K to 298 K; terahertz spectrum; time domain spectrum; transverse optical phonon model; ultraviolet-visible-infrared spectra; wavelength 190 nm to 1600 nm; Electromagnetic wave absorption; Frequency conversion; Nonlinear optics; Optical harmonic generation; Optical modulation; Optical pulses; Phonons; Reflectivity; Temperature; Ultrafast optics;
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.2008.4665413
