Mid-infrared coincidence measurements based on intracavity frequency conversion

Abstract

Piccione, S.; Mancinelli, M.; Trenti, A.; Fontana, G.; Dam, J.; Tidemand-Lichtenberg, Peter; Pedersen, C.; Pavesi, L. ABSTRACTIn the last years, the Mid Infrared (MIR) spectral region has attracted the attention of many areas of science and technology, opening the way to important applications, such as molecular imaging, remote sensing, freespace communication and environmental monitoring. However, the development of new sources of light, such as quantum cascade laser, was not followed by an adequate improvement in the MIR detection system, able to exceed the current challenges. Here we demonstrate the single-photon counting capability of a new detection system, based on efficient up-converter modules, by proving the correlated nature of twin photons pairs at about 3.1μm, opening the way to the extension of quantum optics experiments in the MIR.

Mid-infrared spectrally-pure single-photon states generation from 22 nonlinear optical crystals

“…On the theory side, PPLN [20], PPKN [21], PMN-0.38PT [22], etc have been investigated for single-photon source [23][24][25][26][27]; p-doped semiconductor [28] has been studied for entangled photon source. In addition, some studies explored single-photon detection by superconducting nanowire single-photon detector (SNSPD) [29][30][31] or by silicon avalanche photodiode (SAPD) in an up-conversion configuration [14,32].…”

Mid-infrared Spectrally Pure Single-Photon States Generation from 22 Nonlinear Optical Crystals

“…have been investigated for single-photon source [23][24][25][26][27]; p-doped semiconductor [28] has been studied for entangled photon source. In addition, some studies explored single-photon detection by superconducting nanowire single-photon detector (SNSPD) [29][30][31] or by silicon avalanche photodiode (SAPD) in an upconversion confguration [14,32].…”