High-resolution heterodyne spectroscopy using a tunable quantum cascade laser around 3.5 THz

High-resolution heterodyne spectroscopy using a tunable quantum cascade laser around 3.5 THz

A frequency tunable terahertz heterodynespectrometer, based on a third-order distributed feedback quantum cascade laser as a local oscillator, has been demonstrated by measuring molecular spectral lines of methanol (CH[subscript 3]OH) gas at 3.5 THz. By varying the bias voltage of the laser, we achi...

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Bibliographic Details
Main Authors: Ren, Y. (Author), Hovenier, J. N. (Author), Higgins, R. (Author), Gao, J. R. (Author), Klapwijk, T. M. (Author), Shi, S. C. (Author), Klein, B. (Author), Reno, J. L. (Author), Kao, Tsung-Yu (Contributor), Hu, Qing (Contributor)
Other Authors: Massachusetts Institute of Technology. Department of Electrical Engineering and Computer Science (Contributor)
Format: Article
Language:English
Published: American Institute of Physics (AIP), 2014-05-01T19:42:00Z.
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