TY - GEN
T1 - Frequency accuracy and resolution of a GaP continuous-wave terahertz spectrometer
AU - Sasaki, Tetsuo
AU - Tanabe, Tadao
AU - Nishizawa, Jun Ichi
N1 - Funding Information:
This work was partly supported by Grants-in-Aid for Scientific Research (B) (No. 16H03882) from the Japan Society for the Promotion of Science
Publisher Copyright:
© 2016 IEEE.
PY - 2016/11/28
Y1 - 2016/11/28
N2 - We have developed a wide frequency range tunable continuous-wave terahertz signal generator (CW THz SG) on the principle of difference frequency generation (DFG) via non-collinear phase matching in a gallium phosphide (GaP) crystal. The GaP CW THz SG has a wide frequency range, high accuracy, high stability and easy operation/maintenance. A spectrometer working as a continuous system was realized by combining the GaP CW THz SG as the light source with a superconducting transition edge sensor (TES) bolometer cooled by a pulse tube refrigerator. The frequency resolution and absolute accuracy of the newly developed frequency-stabilized GaP CW THz spectrometer was evaluated by measurements of water vapor absorption under vacuum. High accuracy spectral measurements for pharmaceuticals will be also presented.
AB - We have developed a wide frequency range tunable continuous-wave terahertz signal generator (CW THz SG) on the principle of difference frequency generation (DFG) via non-collinear phase matching in a gallium phosphide (GaP) crystal. The GaP CW THz SG has a wide frequency range, high accuracy, high stability and easy operation/maintenance. A spectrometer working as a continuous system was realized by combining the GaP CW THz SG as the light source with a superconducting transition edge sensor (TES) bolometer cooled by a pulse tube refrigerator. The frequency resolution and absolute accuracy of the newly developed frequency-stabilized GaP CW THz spectrometer was evaluated by measurements of water vapor absorption under vacuum. High accuracy spectral measurements for pharmaceuticals will be also presented.
UR - http://www.scopus.com/inward/record.url?scp=85006127292&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85006127292&partnerID=8YFLogxK
U2 - 10.1109/IRMMW-THz.2016.7758380
DO - 10.1109/IRMMW-THz.2016.7758380
M3 - Conference contribution
AN - SCOPUS:85006127292
T3 - International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz
BT - 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016
PB - IEEE Computer Society
T2 - 41st International Conference on Infrared, Millimeter and Terahertz Waves, IRMMW-THz 2016
Y2 - 25 September 2016 through 30 September 2016
ER -