Optical property of beta barium borate in terahertz region

作者：Liu Jingle; Guo Xiaoyu; Dai Jianming; Zhang X C^*

来源：Applied Physics Letters, 2008, 93(17): 171102.

DOI：10.1063/1.3009964

The optical property of beta barium borate (beta-BBO) in the terahertz region (0.2-12 THz) was studied using a broadband air photonic terahertz time-domain spectrometer. The crystal orientation and frequency dependence of beta-BBO refractive index and absorption coefficient were experimentally investigated over the temperature range of 10-293 K. Four TO phonon modes were observed below 3.5 THz. The behavior of these phonon modes at different temperatures has been characterized.

• 出版日期2008-10-27