Hot electron bolometer heterodyne receiver with a 4.7-THz quantum cascade laser as a local oscillator

J. L. Kloosterman, D. J. Hayton, Y. Ren, T. Y. Kao, J. N. Hovenier, J. R. Gao, T. M. Klapwijk, Q. Hu, C. K. Walker, J. L. Reno

Research output: Contribution to journalArticle

68 Scopus citations

Abstract

We report on a heterodyne receiver designed to observe the astrophysically important neutral atomic oxygen [OI] line at 4.7448 THz. The local oscillator is a third-order distributed feedback quantum cascade laser operating in continuous wave mode at 4.741 THz. A quasi-optical, superconducting NbN hot electron bolometer is used as the mixer. We recorded a double sideband receiver noise temperature (T r e c D S B) of 815 K, which is ∼ 7 times the quantum noise limit (h ν 2 k B) and an Allan variance time of 15 s at an effective noise fluctuation bandwidth of 18 MHz. Heterodyne performance was confirmed by measuring a methanol line spectrum.

Original languageEnglish (US)
Article number011123
JournalApplied Physics Letters
Volume102
Issue number1
DOIs
StatePublished - Jan 7 2013

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Fingerprint Dive into the research topics of 'Hot electron bolometer heterodyne receiver with a 4.7-THz quantum cascade laser as a local oscillator'. Together they form a unique fingerprint.

  • Cite this

    Kloosterman, J. L., Hayton, D. J., Ren, Y., Kao, T. Y., Hovenier, J. N., Gao, J. R., Klapwijk, T. M., Hu, Q., Walker, C. K., & Reno, J. L. (2013). Hot electron bolometer heterodyne receiver with a 4.7-THz quantum cascade laser as a local oscillator. Applied Physics Letters, 102(1), [011123]. https://doi.org/10.1063/1.4774085