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Ti/Au TES to Discriminate Single Photons

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Abstract

Single photon detectors are fundamental devices in several scientific fields, like in optical science and technology. We introduce the state of the art of Transition Edge Sensors, developed and characterized at INRIM, to detect photons from optical to near-infrared wavelength range (406–1570 nm).

Both the capability to resolve up to 29 incident photons in a single pulse and to discriminate up to 2 photons with an energy resolution of 0.18 eV have been reached.

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Notes

  1. The degrees of freedom are the number of data points minus the parameters to be estimated. The fit equation has as fitting parameters the offset and the mean photon number of the Poissonian distribution.

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Acknowledgements

The authors wish to thank Dr. P. Traina, Dr. I.P. Degiovanni and Dr. M. Genovese for the visible coherent source.

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Authors and Affiliations

  1. INRIM, Istituto Nazionale di Ricerca Metrologica, Strada delle Cacce 91, 10135, Torino, Italy

    L. Lolli, E. Taralli & M. Rajteri

  2. DISPEA, Politecnico di Torino, C.so Duca degli Abruzzi 24, 10129, Torino, Italy

    L. Lolli

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  1. L. Lolli
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  2. E. Taralli
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  3. M. Rajteri
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Correspondence to L. Lolli.

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Lolli, L., Taralli, E. & Rajteri, M. Ti/Au TES to Discriminate Single Photons. J Low Temp Phys 167, 803–808 (2012). https://doi.org/10.1007/s10909-012-0473-2

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  • DOI: https://doi.org/10.1007/s10909-012-0473-2

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