Low THz absorption of Na3La9B8O27 crystal

Author

Hou, Bihui ; Zhang, Yun ; Mao, Zongliang ; Peizhen Fu ; Wang, Li ; Han, Shouzhen ; Liu, Fengyan

Author_Institution

Coll. of Appl. Sci., Beijing Univ., Beijing

fYear

2007

fDate

2-9 Sept. 2007

Firstpage

534

Lastpage

535

Abstract

THz time-domain spectrum of the Na₃La₉B₈O₂₇(NLBO) crystal had been measured. The absorption spectrum and other optical constants had been gained through Fourier transform. The absorption coefficient alpha(omega) is less than 20/cm from 0.1 to 3.0 THz. With the increasing of the frequency, the refractive index n(omega) and the real of dielectric constant epsiv₁(omega) steadily and monotonically increase. The n(omega) changes from 3.55 to 3.78, and the epsiv₁(omega) changes from 12.7 to 14.2. The imaginary of dielectric constant epsiv₂(omega) is less than 0.1 from 0.5 to 2.0 THz.

Keywords

Fourier transforms; absorption coefficients; crystals; lanthanum compounds; permittivity; sodium compounds; submillimetre wave spectra; Fourier transform; Na₃La₉B₈O₂₇; absorption coefficient; absorption spectrum; crystal time-domain spectrum; dielectric constant; frequency 0.1 THz to 3.0 THz; optical constants; Crystallization; Dielectric constant; Electromagnetic wave absorption; Frequency conversion; Nonlinear optics; Optical harmonic generation; Optical refraction; Optical variables control; Physics; Reflectivity;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves, 2007 and the 2007 15th International Conference on Terahertz Electronics. IRMMW-THz. Joint 32nd International Conference on

Conference_Location

Cardiff

Print_ISBN

978-1-4244-1438-3

Type

conf

DOI

10.1109/ICIMW.2007.4516618

Filename

4516618