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Proceedings Paper

Superconducting microbolometers for time-resolved terahertz spectroscopy
Author(s): Daniel F. Santavicca; Anthony J. Annunziata; Matthew O. Reese; Luigi Frunzio; Daniel E. Prober
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Paper Abstract

We report the characterization of superconducting niobium microbolometers designed for time-resolved terahertz spectroscopy on nanosecond to millisecond timescales. Coupling of the incident signal is achieved via a planar antenna mounted on a hyperhemispherical silicon lens. We have integrated these detectors into a custom Fourier-transform spectrometer. The spectrometer optics are frequency independent over the spectral range 0.1-3 terahertz and thus the system bandwidth is set by the detector antenna. We have fabricated devices with two different antenna geometries, the double-dipole and the log spiral, and have characterized the spectral response of each. This detector will enable a variety of novel spectroscopy applications.

Paper Details

Date Published: 26 September 2007
PDF: 8 pages
Proc. SPIE 6772, Terahertz Physics, Devices, and Systems II, 67720Q (26 September 2007); doi: 10.1117/12.739327
Show Author Affiliations
Daniel F. Santavicca, Yale Univ. (United States)
Anthony J. Annunziata, Yale Univ. (United States)
Matthew O. Reese, Yale Univ. (United States)
Luigi Frunzio, Yale Univ. (United States)
Daniel E. Prober, Yale Univ. (United States)

Published in SPIE Proceedings Vol. 6772:
Terahertz Physics, Devices, and Systems II
Mehdi Anwar; Anthony J. DeMaria; Michael S. Shur, Editor(s)

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