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Energy resolution of terahertz single-photon-sensitive bolometric detectors

Santavicca, D. F. and Reulet, B. and Karasik, B. S. and Pereverzev, S. V. and Olaya, D. and Gershenson, M. E. and Frunzio, L. and Prober, D. E. (2010) Energy resolution of terahertz single-photon-sensitive bolometric detectors. Applied Physics Letters, 96 (8). Art. No. 083505. ISSN 0003-6951. doi:10.1063/1.3336008.

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We report measurements of the energy resolution of ultrasensitive superconducting bolometric detectors. The device is a superconducting titanium nanobridge with niobium contacts. A fast microwave pulse is used to simulate a single higher-frequency photon, where the absorbed energy of the pulse is equal to the photon energy. This technique allows precise calibration of the input coupling and avoids problems with unwanted background photons. Present devices have an intrinsic full-width at half-maximum energy resolution of approximately 23 THz, near the predicted value due to intrinsic thermal fluctuation noise.

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Additional Information:© 2010 American Institute of Physics. �Received 18 May 2009; accepted 5 February 2010; published online 25 February 2010�. The work at Yale was supported in part by NSF-DMR-0907082, NSF-CHE-0616875, and Yale University. The work by B.K. and S.P. was carried out at the Jet Propulsion Laboratory, California Institute of Technology, under a contract with the National Aeronautics and Space Administration. The work at Rutgers was supported in part by NSF-ECS-0608842 and the Rutgers Academic Excellence Fund. B.R. acknowledges Yale support from the Flint Fund for Nanoscience for research visits during the summers of 2008 and 2009. L.F. acknowledges partial support from CNR-Istituto di Cibernetica, Pozzuoli, Italy.
Group:Keck Institute for Space Studies
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NSFCHE- 0616875
Yale UniversityUNSPECIFIED
Rutgers UniversityUNSPECIFIED
Flint Fund for NanoscienceUNSPECIFIED
Consiglio Nazionale delle Ricerche (CNR)UNSPECIFIED
Istituto di CiberneticaUNSPECIFIED
Issue or Number:8
Record Number:CaltechAUTHORS:20160311-152401252
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:65321
Deposited By: Colette Connor
Deposited On:14 Mar 2016 20:46
Last Modified:10 Nov 2021 23:44

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