Active modulation of refractive index by stress in the terahertz frequency range

作者:Li, Lin'an; Song, Wei; Wang, Zhiyong*; Wang, Shibin; He, Mingxia; Han, Jiaguang; Cong, Longqing
来源:Applied Optics, 2013, 52(25): 6364-6368.
DOI:10.1364/AO.52.006364

摘要

Experimental tests are presented to investigate the stress effect on terahertz (THz) waves with a THz time-domain spectroscopy system. Through the Jones matrix method, an experimental principle is derived according to the experimental system. Experimental results indicate the linear relationship between a polytetrafluoroethylene refractive index and applied stress. The result can be applied to the active modulation of a refractive index or phase of a THz wave.

全文