An All-Cryogenic THz Transmission Spectrometer

Details An All-Cryogenic THz Transmission Spectrometer An All-Cryogenic THz Transmission Spectrometer

2001-07-23

arxiv.org/abs/physics/0107057v2

Physics

Instrumentation and Detectors

7 pages, 5 figures. Author affiliation and funding acknowledgements clarified

Scientific paper

10.1063/1.1426231

This paper describes a THz transmission spectrometer for the spectral range of 2-65 cm^-1 (100 GHz to 2 THz) with a spectral resolution of at least 1.8 cm^-1 (50 GHz) where the source, sample, and detector are all fully contained in a cryogenic environment. Cyclotron emission from a two-dimensional electron gas heated with an electrical current serves as a magnetic field tunable source. The spectrometer is demonstrated at 4.2 K by measuring the resonant cyclotron absorption of a second two dimensional electron gas. Unique aspects of the spectrometer are that 1) an ultra-broadband detector is used and 2) the emitter is run quasi-continuously with a chopping frequency of only 1 Hz. Since optical coupling to room temperature components is not necessary, this technique is compatible with ultra-low temperature (sub 100 mK) operation.

Affiliated with

Also associated with

No associations

Rating

An All-Cryogenic THz Transmission Spectrometer does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with An All-Cryogenic THz Transmission Spectrometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and An All-Cryogenic THz Transmission Spectrometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-227225