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ШИРОКОДИАПАЗОННЫЙ СПЕКТРОМЕТР ВЫСОКОГО РАЗРЕШЕНИЯ ТГЦ ЧАСТОТНОГО ДИАПАЗОНА

Анфертьев В., Вакс В., Пентин И., Гольцман Г. Н., Селиверстов С., Финкель М., Рябчун С. А., Третьяков И.

A possibility to develop a high-resolution terahertz (THz) spectrometer for a wide range of tasks is considered. The proposed spectrometer consists of a synthesizer based on a Gunn generator and a frequency multiplier based on a semiconductor superlattice as a radiation source, as well as a NbN hot-electron bolometer in a direct-detection mode as a THz radiation receiver. We present some experimental results for the spectrometer: the absorption lines of H 2O (1.92 THz, 17 th harmonic) and of HDO (1.49 THz, 13 th harmonic) have been registered. The results obtained are analyzed and further prospects to improve the spectrometer characteristics are considered.