Robuta

https://www.nist.gov/publications/ultrafast-terahertz-spectroscopy-measuring-low-frequency-vibrational-modes-hydrogen
An ultrafast terahertz spectrometer using ZnTe crystals for optical rectification and free-space electro-optic sampling has been developed to measure vibrationa
terahertz spectroscopylow frequencyvibrational modesultrafastmeasuring