M Runge, T Kang, K Biermann, K Reimann, M Woerner… - Optica, 2021 - opg.optica.org
Both second-order frequency mixing in nonlinear optical media and photoconductive antennas have provided terahertz (THz) transients in a wide parameter range. Here, we …
We use an open-aperture Z scan technique to show how intense few-cycle terahertz pulses can experience a nonlinear bleaching of absorption in an n-doped semiconductor due to …
Nonlinear dynamics of free carriers in direct bandgap semiconductors at terahertz (THz) frequencies is studied using the intense few-cycle source available at the Advanced Laser …
IC Ho, XC Zhang - Frontiers of Optoelectronics, 2014 - Springer
Semiconductor nonlinearity in the range of terahertz (THz) frequency has been attracting considerable attention due to the recent development of high-power semiconductor-based …
A Rovere, YG Jeong, R Piccoli, SH Lee, SC Lee… - Optics …, 2018 - opg.optica.org
We present the generation of high-peak-electric-field terahertz pulses via collinear optical rectification in a 2-(4-hydroxy-3-methoxystyryl)-1-methilquinolinium-2, 4, 6 …
Terahertz (THz) imaging is currently based on linear effects, but there is great interest on how nonlinear effects induced by terahertz radiation could be exploited to provide extra …
A Schneider, M Stillhart, P Günter - Optics express, 2006 - opg.optica.org
We report on the generation and detection of few-cycle THz pulses in the organic crystal DAST (4-N, N-dimethylamino-4'-N'-methyl stilbazolium tosylate) using the …
Nonlinear transient absorption bleaching of intense few-cycle terahertz (THz) pulses is observed in photoexcited GaAs using opticalpump–THz-probe techniques. A simple model …
We report on terahertz (THz) generation via optical rectification in a room temperature gallium arsenide (GaAs) crystal pumped at a wavelength of 1.8 μm using a modified tilted …