Characterization of a Wide-Band Single-Photon Detector Based on Transition-Edge Sensor
A superconducting transition-edge sensor (TES) as a microcalorimeter detects incoming photons by measuring heat converted from photon energy. With high resolving power and low noise levels, a TES is sensitive to single photons and able to count photons within a wide spectral band from X-ray to near-infrared. We have developed a TES detector aiming at soft X-ray spectroscopy applications. In this work, the performance of this detector is characterized. It is shown that the energy resolution of this detector is about 1.8 eV for 1.5 keV photons. The good resolution is also kept in visible range, enabling photon-number resolving for 405 nm photons.
Authors
- Bing-Jun Wu (ORCID: https://orcid.org/0000-0003-2939-0981)
- Jingkai Xia (ORCID: https://orcid.org/0000-0002-8014-3452)
- S. Zhang (ORCID: https://orcid.org/0000-0002-9387-5169)
Institutions
- Ministry of Education of the People's Republic of China (CN)
- ShanghaiTech University (CN)
- Ji Hua Laboratory (CN)
- Shanghai Institute of Microsystem and Information Technology (CN)
Publication Details
- Journal
- Photonics
- Published
- 2025-06-13
- DOI
- https://doi.org/10.3390/photonics12060609
- Primary Topic
- Advanced Optical Sensing Technologies
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- National Natural Science Foundation of China
- Ministry of Education of the People's Republic of China
- National Key Research and Development Program of China