A Metrological Near-Room-Temperature Photon-Number-Resolving Detector: A Design Study
Zachary H Levine1, Joshua C Bienfang1, Alan L Migdall1,2
1Quantum Measurement Division, National Institute of Standards and Technology, Gaithersburg, MD 20899-8410, USA.
Sensors (Basel, Switzerland)
|September 13, 2025
Summary
This study presents a non-cryogenic optical detector for accurate photon counting. The semiconductor device operates at -10 °C and can resolve photon pulses with high precision and low error rates.
Area of Science:
- Photonics and Semiconductor Physics
- Metrology and Instrumentation
Background:
- Accurate photon counting is crucial for various scientific applications.
- Existing photon detectors often require cryogenic cooling, limiting their practicality.
Purpose of the Study:
- To describe and model a novel non-cryogenic optical detector for metrological photon counting.
- To predict the performance of a semiconductor-based photon detector operating at -10 °C.
Main Methods:
- Development of a semiconductor device model for photon detection.
- Simulation of optical loss, electron loss, and noise sources.
- Estimation of overall device performance based on simulations and empirical data.
Main Results:
- The proposed detector design operates at -10 °C, avoiding cryogenic requirements.
- Predicted ability to resolve photon pulses up to 10 photons.
- Estimated error rate of 2% in the input photon number.
Conclusions:
- The developed non-cryogenic optical detector shows promise for accurate photon counting.
- The design offers a practical alternative to cryogenic photon detection systems.
- Further validation through experimental testing is warranted.
