Nonlinear radiation response of n-doped indium antimonide and indium arsenide in intense terahertz field
Gong Jiao-Li1, 2, 3, Liu Jin-Song1, †, 
, Chu Zheng1, Yang Zhen-Gang1, Wang Ke-Jia1, Yao Jian-Quan1
, Chu Zheng1, Yang Zhen-Gang1, Wang Ke-Jia1, Yao Jian-Quan1 Far-field THz radiations under the excitations of different intense THz fields: 5 kV/cm (black curve), 20 kV/cm (red curve), 50 kV/cm (blue curve), and 100 kV/cm (green curve), respectively. Panels (a) and (b) show the frequency spectra and time-domain spectra for n-doped InSb; panels (c) and (d) display the frequency spectra and time-domain spectra for n-doped InAs.
