Generation and detection of ultrashort pulses of electromagnetic field in the terahertz range and their application for spectroscopy
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- Akhmedzhanov, R.A., Korytin, A.I., Litvak, A.G. et al. Radiophys Quantum Electron (2005) 48: 837. doi:10.1007/s11141-006-0015-3
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We present experimental results on generation of pulsed terahertz radiation in a ZnTe crystal using nonlinear optical rectification of high-power femtosecond laser pulses. The use of terahertz pulses for spectroscopy is tested in the rotational lines of absorption of water vapors in the atmosphere. Panoramic spectra of absorption of a number of solvents and protein solutions are measured in the range from 0.2 to 2 THz.