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

fYear

2008

fDate

15-19 Sept. 2008

Firstpage

1

Lastpage

2

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 omega_LO of the longitudinal optical phonon model LO is about 1.29times10¹⁵ Hz. Frequency omega_TO 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;

fLanguage

English

Publisher

ieee

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

Type

conf

DOI

10.1109/ICIMW.2008.4665413

Filename

4665413