OSU Navigation Bar

The Ohio State University University Libraries Knowledge Bank

The Knowledge Bank is scheduled for regular maintenance on Sunday, April 20th, 8:00 am to 12:00 pm EDT. During this time users will not be able to register, login, or submit content.

DIODE-PUMPED TERAHERTZ PHOTOMIXING SPECTRAMETER

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/13885

Show simple item record

Files Size Format View
1997-MI-07.jpg 112.6Kb JPEG image Thumbnail of DIODE-PUMPED TERAHERTZ PHOTOMIXING SPECTRAMETER

dc.creator Van Rooij, J. M. en_US
dc.creator Pine, A. S. en_US
dc.creator Suenram, R. D. en_US
dc.date.accessioned 2006-06-15T15:41:26Z
dc.date.available 2006-06-15T15:41:26Z
dc.date.issued 1997 en_US
dc.identifier 1997-MI-07 en_US
dc.identifier.uri http://hdl.handle.net/1811/13885
dc.description $^{a}$Also, Department of Physics, Catholic University of Nijmegen, the Netherlands. $^{b}$A.S. Pine, R.D. Suenram E.R. Brown and K.A. Mulntosh J. Mo1. Spectrosc. \textbf{175}, 37(1996). en_US
dc.description Author Institution: Optical Technology Division, National Institute of Standards and Technology en_US
dc.description.abstract We previously demonstrated a high-resolution terahertz $spectrometer^{b}$ by mixing dye lasers in a fast low-temperature-grown (LTG)-GaAs photoconductor with submicron interdigital electrodes feeding a broadband complementary spiral antenna which radiates the coherent terahertz beat through a sample gas cell to a composite Si bolometer. We have upgraded the system efficiency, range and sensitivity by replacing the dye lasers with near-infrared diode,.lasers, using lower capacitance photomixers and detecting the far-ir radiation with a faster response hot-electron InSb bolometer. The fixed-tuned laser is a single-frequency $(\lambda \approx 852 nm)$ distributed-Bragg-reflector (DBR)GaAIAs diode, self-locked to a confocal interferometer and the tunable diode laser is a broadband quantum-well $(828 \leq \lambda \leq 858 nm)$ single-mode Littman-Metcalf external-cavity oscillator and a tapered planar amplifier, with precision linear piezoelectric tuning of up to 60 GHz and complete spectral coverage from 0.1 to 2 THz. Sample spectra will be given. en_US
dc.format.extent 115350 bytes
dc.format.mimetype image/jpeg
dc.language.iso English en_US
dc.title DIODE-PUMPED TERAHERTZ PHOTOMIXING SPECTRAMETER en_US
dc.type article en_US