High precision spectroscopy and imaging in THz frequency range

2nd Russia-Japan-USA Symposium on the Fundamental and Applied Problems of Terahertz Devices and Technologies

Vaks, Vladimir L.^1

Institute for Physics of Microstructures, Russian Academy of Sciences, Russia^1

关键词: Absorption cells;    Analytical investigations;    Chemical weapons;    Ecological monitoring;    High-precision spectroscopy;    Medicine application;    Microwave methods;    Non-stationary effects;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/486/1/012002/pdf
DOI  :  10.1088/1742-6596/486/1/012002

来源: IOP

【 摘 要 】

Application of microwave methods for development of the THz frequency range has resulted in elaboration of high precision THz spectrometers based on nonstationary effects. The spectrometers characteristics (spectral resolution and sensitivity) meet the requirements for high precision analysis. The gas analyzers, based on the high precision spectrometers, have been successfully applied for analytical investigations of gas impurities in high pure substances. These investigations can be carried out both in absorption cell and in reactor. The devices can be used for ecological monitoring, detecting the components of chemical weapons and explosive in the atmosphere. The great field of THz investigations is the medicine application. Using the THz spectrometers developed one can detect markers for some diseases in exhaled air.