Quantum Optics INRIM

Quantum Photonics Metrology

There is now a critical mass of companies developing quantum photonics technologies ranging from quantum communications (e.g. single-photon sources and sources of entangled photons for quantum key distribution) via quantum sensors (e.g. single-photon detectors, but also magnetic, temperature and pressure sensors based on NV centres) to quantum imaging (e.g. single photon confocal microscope and quantum cameras). It is fundamental that dedicated metrological techniques should be developed to support the standardisation and the market success of these novel technologies.

The Quantum Optics Group contributes by developing cutting edge research activities in the context of optically based quantum enhance measurements and quantum sensors, as well as, developing the necessary metrological infrastructure for the characterisation of the quantum photonics devices and for their certification.

Specifically, it has developed novel measurement approach and systems for the characterisation of several aspects of single-photon sources and single-photon detectors.

Furthermore, there is an extremely active research field aiming at developing quantum sensors exploiting fluorescence of the colour centres in (nano-)diamond, and a strong interest in developing quantum enhanced measurement systems exploiting quantum light in a variety of field ranging from quantum interferometry to quantum reading.


Most relevant pubblications

  • Hristina Georgieva et al. "Detection of ultra-weak laser pulses by free-running single-photon detectors: Modeling dead time and dark counts effects" Applied Physics Letters 118, 174002 (2021).

  • A biocompatible technique for magnetic field sensing at (sub)cellular scale using Nitrogen-Vacancy centers. E. Bernardi, E. Moreva, P. Traina, G. Petrini, S. Ditalia Tchernij, J. Forneris, Ž. Pastuović, I. P. Degiovanni, P. Olivero and M. Genovese. EPJ Quantum Technol. 7, 13 (2020).

  • A study to develop a robust method for measuring the detection efficiency of free-running InGaAs/InP single-photon detectors. M. López, A. Meda, G. Porrovecchio, R. A. Starkwood, M. Genovese, G. Brida, M. Šmid, C. J. Chunnilall, I. P. Degiovanni and S. Kück. EPJ Quantum Technol. 7, 14 (2020).

  • Is a Quantum Biosensing Revolution Approaching? Perspectives in NV‐Assisted Current and Thermal Biosensing in Living Cells. Petrini, G., Moreva, E., Bernardi, E., Traina, P., Tomagra, G., Carabelli, V., Degiovanni, I.P. and Genovese, M. Adv. Quantum Technol., 3: 2000066. (2020).

  • Towards a standard procedure for the measurement of the multi-photon component in a CW telecom heralded single-photon source. E. Rebufello, F. Piacentini, M. Lopez, R. A. Kirkwood, I. Ruo-Berchera, M. Gramegna, G. Brida, S. Kuck, C. J. Chunnilall, M. Genovese and I. P. Degiovanni. Metrologia 56 (2019) 025004