Optical Rectification and Electro-Optic Sampling in Quartz
Optics
2023-04-19 v1 Instrumentation and Detectors
Abstract
We report electro-optic sampling (EOS) response and terahertz (THz) optical rectification (OR) in z-cut alpha-quartz. Due to its small effective second-order nonlinearity, echo-free waveform of intense THz pulses with a few MV/cm electric-field strength can be measured faithfully with no saturation effect. Both its OR and EOS responses are broad with extension up to ~8 THz. Strikingly, the latter responses are independent of the crystal thickness, a plausible indication of strong surface contribution to the total second-order nonlinear susceptibility of quartz. Our study introduces thin quartz plates as the reliable THz electro-optic medium for echo-free, high field THz detection.
Keywords
Cite
@article{arxiv.2209.01153,
title = {Optical Rectification and Electro-Optic Sampling in Quartz},
author = {Vasileios Balos and Martin Wolf and Sergey Kovalev and Mohsen Sajadi},
journal= {arXiv preprint arXiv:2209.01153},
year = {2023}
}