THz-wave generation based on Crystals KTiOPO4 and KTiOAsO4

Author

Wang, W.T. ; Zhang, X.Y. ; Cong, Z.H. ; Liu, Z.J. ; Qin, Z.G. ; Chen, X.H. ; Lu, Q.M.

Author_Institution

Shandong Provincial Key Lab. of Laser Technol., Shandong Univ., Jinan, China

fYear

2014

fDate

14-19 Sept. 2014

Firstpage

1

Lastpage

2

Abstract

Crystals KTiOPO₄ and KTiOAsO₄ are used in terahertz parametric oscillators. The transverse optical A₁ mode associated with the stimulated polariton scattering for KTiOPO₄ is 268.5 cm^-1. The intermittently tunable THz wave from 3.17 THz to 6.13 THz is obtained. For KTiOAsO₄, the transverse optical A₁ mode is 233.8 cm^-1 and the intermittently tunable range is from 3.59 THz to 6.43 THz. The appearance of the THz-wave frequency gaps is due to several strongly infrared absorbing A₁ modes below 268.5 cm^-1 and 233.8 cm^-1, respectively.

Keywords

light sources; optical parametric oscillators; optical tuning; potassium compounds; terahertz wave generation; titanium compounds; KTiOAsO₄; KTiOPO₄; frequency 3.59 THz to 6.43 THz; intermittently tunable THz wave; stimulated polariton scattering; terahertz parametric oscillator; terahertz wave frequency gap; terahertzwave wave generation; transverse optical A₁ mode; Crystals; Frequency conversion; Optical pumping; Optical scattering; Optical surface waves; Oscillators; Surface waves;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared, Millimeter, and Terahertz waves (IRMMW-THz), 2014 39th International Conference on

Conference_Location

Tucson, AZ

Type

conf

DOI

10.1109/IRMMW-THz.2014.6956431

Filename

6956431