MIT Libraries logoDSpace@MIT

MIT
View Item 
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
  • DSpace@MIT Home
  • MIT Open Access Articles
  • MIT Open Access Articles
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

Terahertz heterodyne spectrometer using a quantum cascade laser

Author(s)
Ren, Y.; Hovenier, J. N.; Higgins, R.; Gao, J. R.; Klapwijk, T. M.; Shi, S. C.; Bell, A.; Klein, B.; Williams, B. S.; Kumar, S.; Reno, J. L.; Hu, Qing; ... Show more Show less
Thumbnail
DownloadHu_Terahertz heterodyne.pdf (368.6Kb)
PUBLISHER_POLICY

Publisher Policy

Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.

Terms of use
Article is made available in accordance with the publisher's policy and may be subject to US copyright law. Please refer to the publisher's site for terms of use.
Metadata
Show full item record
Abstract
A terahertz (THz) heterodyne spectrometer is demonstrated based on a quantum cascade laser(QCL) as a local oscillator (LO) and an NbN hot electron bolometer as a mixer, and it is used to measure high-resolution molecular spectral lines of methanol (CH[subscript 3]OH) between 2.913–2.918 THz. The spectral lines are taken from a gas cell containing methanol gas and using a single-mode QCL at 2.9156 THz as an LO, which is operated in the free running mode. By increasing the pressure of the gas, line broadening and saturation are observed. The measured spectra showed good agreement with a theoretical model.
Date issued
2010-10
URI
http://hdl.handle.net/1721.1/86345
Department
Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science
Journal
Applied Physics Letters
Publisher
American Institute of Physics (AIP)
Citation
Ren, Y., J. N. Hovenier, R. Higgins, J. R. Gao, T. M. Klapwijk, S. C. Shi, A. Bell, et al. “Terahertz Heterodyne Spectrometer Using a Quantum Cascade Laser.” Appl. Phys. Lett. 97, no. 16 (2010): 161105. © 2010 American Institute of Physics
Version: Final published version
ISSN
00036951
1077-3118

Collections
  • MIT Open Access Articles

Browse

All of DSpaceCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsThis CollectionBy Issue DateAuthorsTitlesSubjects

My Account

Login

Statistics

OA StatisticsStatistics by CountryStatistics by Department
MIT Libraries
PrivacyPermissionsAccessibilityContact us
MIT
Content created by the MIT Libraries, CC BY-NC unless otherwise noted. Notify us about copyright concerns.