Research Progress
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New Progress in Cross-domain Few-Shot Hyperspectral Image ClassificationResearchers from the Xi’an Institute of Optics and Precision Mechanics of the Chinese Academy of Sciences have developed a cross-domain few-shot hyperspectral classification framework named SpectralDINO. By integrating DINOv2 with parameter-efficient tunin... Hyperspectral imaging captures detailed material information across hundreds of spectral bands; however, its real-world use has been limited by the scarcity of labeled data and sensor differences. In a study published in IEEE Transactions on Geoscience and ...Oct 17, 2025 -
Novel Framework for Interference Data Denoising and Baseline CorrectionResearchers from the Xi’an Institute of Optics and Precision Mechanics of Chinese Academy of Sciences have proposed a novel interference data denoising network (InDNet) ,which is able to simultaneously denoise and correct baselines in spatial heterodyne in... Spatial heterodyne Raman spectroscopy is a powerful tool for high-resolution spectral detection but is often hindered by weak signals, noise, and complex baselines caused by instrumental and environmental factors. It's difficult for traditional methods to h...Sep 24, 2025 -
Researchers Achieve Breakthrough in High-Energy Nanosecond Fiber LasersResearchers from the Chinese Academy of Sciences have developed a stimulated Brillouin scattering-based pulse shaping technique that boosts nanosecond fiber laser performance. By suppressing nonlinear effects, the method increases pulse energy to 0.58 mJ an... Nanosecond-pulsed fiber lasers are widely used in laser processing, remote sensing, and communications, but their performances are often limited by nonlinear effects such as four-wave mixing (FWM), which causes unstable sub-peaks and restricts further power...Sep 24, 2025 -
Researchers Develop Novel Miniaturized Lidar Technology Based on Cross Dual-microcombResearchers from the Xi’an Institute of Optics and Precision Mechanics of the Chinese Academy of Sciences have proposed a cross dual-microcomb precision ranging method that eliminates the asynchronous measurement errors prevalent in previous dual-comb sche... Optical frequency combs, as a time and frequency "ruler," have important applications in precision ranging. Conventional dual-comb ranging schemes utilize the optical Vernier effect to achieve long-distance measurements, and they typically require asynchron...Aug 19, 2025 -
Researchers Unveil Dynamic Evolution of Double-Periodic Pulsating SolitonsResearchers from the Xi’an Institute of Optics and Precision Mechanics of the Chinese Academy of Sciences have uncovered the nonlinear dynamics of double-periodic pulsating solitons in a 2.8 μm mid-infrared mode-locked fiber laser. They observed a rich e... In a study published in Chaos, Solitons and Fractals, a team leb by Prof. GUO Haitao from the Xi’an Institute of Optics and Precision Mechanics (XIOPM) of the Chinese Academy of Sciences revealed the nonlinear dynamics of double-periodic pulsating solitons...Jul 30, 2025