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Related Experiment Video

Updated: Jun 11, 2026

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Infrared Degenerate Four-wave Mixing with Upconversion Detection for Quantitative Gas Sensing

Published on: March 22, 2019

Room temperature photon number resolving detector for infared wavelengths.

Enrico Pomarico¹, Bruno Sanguinetti, Rob Thew

¹Group of Applied Physics, University of Geneva, 1211 Geneva, Switzerland. enrico.pomarico@unige.ch

|July 1, 2010

Summary

We developed a room-temperature infrared photon detector using up-conversion and a Silicon Photon Multiplier. This novel detector accurately measures low light intensities and analyzes quantum states.

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Area of Science:

Quantum optics
Photonics
Infrared detection

Background:

Traditional infrared detectors often require cryogenic cooling.
Accurate photon counting at infrared wavelengths is crucial for quantum information science.

Purpose of the Study:

To present a novel photon number resolving detector for infrared wavelengths.
To demonstrate room-temperature operation and a large dynamic range.
To enable the analysis of multiphoton quantum states.

Main Methods:

Up-conversion of 1559 nm infrared signal to visible wavelengths.
Detection using a thermoelectrically cooled, multi-pixel Silicon Photon Multiplier.
Analysis of Poissonian statistics preservation and cross-talk effects.

Main Results:

Successful demonstration of a photon number resolving detector at 1559 nm.
Operation achieved at room temperature with a large dynamic range.
Preservation of Poissonian statistics for coherent states confirmed.

Conclusions:

The developed detector is suitable for measuring low infrared light intensities.
The system can be adapted for various infrared wavelengths.
Enables advanced analysis of quantum states and improved detector calibration.