20 papers
Free-running single-cavity dual combs with Hz-level relative linewidth
Yuan Chen, Ming Yan, Jia Xu +7
Single-cavity dual-comb lasers provide a compact and efficient source for dual-comb spectroscopy in gas sensing applications; however, achieving sufficient free-running mutual cohe…
Nonlinear differential imaging via vectorial parametric interaction
Zhuohang Wei, Kun Huang, Heping Zeng
Optical image differentiation is a key operation for edge extraction in imaging and machine vision, yet most existing implementations rely on momentum-domain filtering elements and…
Single-photon time-stretch computational ghost spectroscopy
Zhibin Zhao, Kun Huang, Ben Sun +4
Time-stretch spectroscopy is powerful for capturing transient spectral phenomena but remains fundamentally limited by detector bandwidth or timing jitter, especially under photon-s…
Mid-infrared snapshot spectral imaging via nonlinear radial dispersion
Jianan Fang, Kun Huang, Ruiyang Qin +2
Mid-infrared (MIR) spectral imaging provides chemically specific contrast through molecular vibrational fingerprints, yet snapshot acquisition remains severely limited by the lack…
Wide-field mid-infrared hyperspectral imaging beyond video rate
Jianan Fang, Kun Huang, Ruiyang Qin +4
Mid-infrared hyperspectral imaging has become an indispensable tool to spatially resolve chemical information in a wide variety of samples. However, acquiring three-dimensional dat…
Single-photon time-stretch infrared spectroscopy
Ben Sun, Kun Huang, Huijie Ma +8
Sensitive mid-infrared (MIR) spectroscopy is highly demanded in various fields ranging from industrial inspection, biomedical diagnosis to astronomical observation. However, the de…