6 papers
A Penning trap single-photon counter for axion detection
Jack A. Devlin, Marko L. Wojtkowiak, Shreyak R. Banhatti +6
Discovering the microscopic composition of dark matter is one of the most important open problems in physics today. Axions are a leading candidate to be dark matter; however, a sea…
Broadband Tunable Photon-Pair Generation and Spectrum Measurement Based on Noncritical Lithium Niobate Crystals
Zhao-Qi-Zhi Han, Bo-Wen Liu, He Zhang +8
Photon pairs play a vital role in modern science, driving extensive research into their generation. Yet, the narrow phase-matching bandwidth of conventional crystals has largely co…
Passive Incoherent Ultrafast Mid-Infrared Upconversion Imaging and Its Calibration
Jin-Peng Li, Zhi-You Li, Zhao-Qi-Zhi Han +7
Ultrafast mid-infrared (MIR) imaging is a key enabling capability for monitoring transient thermal and plasma phenomena in scientific diagnostics and industrial safety. However, co…
Short-wave infrared broadband up-conversion imaging by using a noncritical phase matched bulk KTiOPO crystal
Xiaohua Wang, Zhaoqizhi Han, Zhenghe Zhou +6
Compared to cryogenically cooled conventional detectors, up-conversion detection enables efficient room-temperature short-wave infrared (SWIR) imaging. Although quasi-phase-matchin…
High resolution up-conversion imaging in the 10 μm band under incoherent illumination
Zhao-Qi-Zhi Han, Xiao-Hua Wang, Jin-Peng Li +6
Long-wavelength infrared band exhibits significant utility in thermal signature acquisition and molecular spectral analysis, among other applications. The up-conversion detection t…
Optimization of performance of the KM2A full array using the Crab Nebula
LHAASO collaboration
The full array of the Large High Altitude Air Shower Observatory (LHAASO) has been in operation since July 2021. For its kilometer-square array (KM2A), we have optimized the select…