Work

Characterization of a Wide-Band Single-Photon Detector Based on Transition-Edge Sensor

Year: 2025

Type: article

Abstract: 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.

Source: Photonics

DOI: 10.3390/photonics12060609

Authors: Jingkai Xia, Shuo Zhang, Bingjun Wu

Institutions: ShanghaiTech University, Shanghai Key Laboratory for Particle Physics and Cosmology, Chinese Academy of Sciences, Shanghai Institute of Microsystem and Information Technology

Language: English

Topic: Superconducting and THz Device Technology

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $2,896

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