dc.creator Yamamoto, Junya en_US dc.date.accessioned 2006-06-15T13:27:20Z dc.date.available 2006-06-15T13:27:20Z dc.date.issued 1971 en_US dc.identifier 1971-Sigma-07 en_US dc.identifier.uri http://hdl.handle.net/1811/8821 dc.description Present Address: Department of Physics, The Ohio State University, Columbus, Ohio 43210. en_US dc.description Author Institution: Low Temperature Center, Osaka University Suita en_US dc.description.abstract A new far infrared spectroscopic method using an InSb tunable detector---tuned by a magnetic field---is proposed. If a far infrared source, obeying the Rayleigh-Jeans relation, is used with a grating spectrometer, whose transmittance is independent of wavelength, then the detector output is proportional to $m^{3}$ for a thermal detector, to m for an InSb nontunable detector, and peaks sharply at some fixed m for a tunable detector, where m is the diffraction order. This response is illustrated by absorption spectra of water vapor measured with the tunable InSb detector for various values of the magnetic field. It is proposed to tune the spectral region of the detector synchronously with the motion of the grating, thus eliminating the need for low-frequency-pass filters. en_US dc.format.extent 97525 bytes dc.format.mimetype image/jpeg dc.language.iso English en_US dc.publisher Ohio State University en_US dc.title A NEW FAR INFRARED SPECTROSCOPIC METHOD USING AN InSb TUNABLE DETECTOR en_US dc.type article en_US
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