Subterahertz spectroscopy at He-3 temperatures

D. N. Basov, S. V. Dordevic, E. J. Singley, W. J. Padilla, K. Burch, J. E. Elenewski, L. H. Greene, J. Morris, R. Schickling

Research output: Contribution to journalArticlepeer-review


The design and implementation of a sub-THz spectrometer for operations at temperatures down to 340 mK was demonstrated. A Martin-Puplett (MP) interferometer was coupled to a cryostat housing two independently controlled platforms cooled down with He-3 for operations under extreme conditions. A two-channel signal detection scheme was developed which was conveniently enabled by the optical layout of a MP interferometer. The results show that the two-channel detection minimized uncertainties in sub-THz measurements induced by relatively slow data acquisition.

Original languageEnglish (US)
Pages (from-to)4703-4710
Number of pages8
JournalReview of Scientific Instruments
Issue number11
StatePublished - Nov 2003

ASJC Scopus subject areas

  • Instrumentation


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