Autor:	Frank Lewen, Gisbert Winnewisser, R. Gendriesch, Ernest A. Michael, Juergen Stutzki
Rok vydání:	1999
Předmět:	Radiation Materials science Sideband business.industry Terahertz radiation Automatic frequency control Schottky diode Ring laser Condensed Matter Physics Optics Far infrared Harmonic Laser power scaling Electrical and Electronic Engineering business Instrumentation
Zdroj:	International Journal of Infrared and Millimeter Waves. 20:1073-1083
ISSN:	0195-9271
Popis:	We report an automatic frequency control (AFC) for an optically pumped far infrared (FIR) ring laser applicable for high resolution THz sideband spectroscopy by mixing a fraction of the laser power and a harmonic of a phase-locked synthesizer on a planar Schottky diode. We achieve a relative frequency accuracy of about 0.5 kHz rms at 803 GHz (15NH3) and about 1 kHz rms at 1626.6 GHz (CH 2F 2) over hours of lock time. The absolute frequency accuracy is estimated to be about 5 kHz at 1626.6 GHz.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::2085431635f5bd1d1869767add77c364 https://doi.org/10.1023/a:1021764204367 Zobrazit plný text záznamu Full text from SpringerLink