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Jul 30Thu
  1. Anhui Institute of Optics and Fine Mechanics (AIOFM) · Research ProgressOptics industry49

    Hefei Institutes Develop Dual-Differential Sphere-Tube Coupled Photoacoustic-Scattering System for Simultaneous Aerosol Optical Measurements

    A team led by Researcher Fang Yonghua at the Hefei Institutes of Physical Science has developed a dual-differential sphere-tube coupled photoacoustic-scattering system that simultaneously obtains aerosol absorption and scattering coefficients at 450 nm and 532 nm within a single sampling path and shared measurement volume. The results were published in Photoacoustics. Two laser beams are modulated at 2572 Hz and 169 Hz and demodulated by frequency using an FPGA-based digital lock-in amplifier. With a 1 s integration time, detection limits for the 532 nm absorption and scattering channels are 1.2 Mm⁻¹ and 1.32 Mm⁻¹, respectively.

Jul 24Fri
  1. Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industryOptics and AI47

    Changchun Institute of Optics, Fine Mechanics and Physics Dual-Modal Neuromorphic Device Uses Optical Signals to Boost Machine Olfaction Gas Classification Accuracy

    A team led by researcher Li Shaojuan at the Changchun Institute of Optics, Fine Mechanics and Physics has developed a vision-olfaction dual-modal neuromorphic device based on a MoS2/SnS2 floating-gate heterostructure. The device responds to both optical and gas signals and fuses them at the device level. The results were published in Advanced Materials. The device has an active area of 148 µm² and static power consumption of 3.4 µW. With the optical modality introduced, classification accuracy for 12 gases rose from 52.24% to 98.27%, while recognition accuracy for 51 gas mixtures reached 89.32%.

  2. Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industry60

    Changchun Institute of Optics, Fine Mechanics and Physics Develops Goblet-Shaped Waveguide Mid-Infrared Quantum Cascade Laser with Room-Temperature Low-Power Output

    A team led by Researcher Meng Bo at the Changchun Institute of Optics, Fine Mechanics and Physics published a paper in Laser & Photonics Reviews presenting a mid-infrared quantum cascade laser with a goblet-shaped waveguide structure, using selective wet etching of the active region and eliminating the semi-insulating InP lateral regrowth process. A 1 mm x 3 um device achieved a continuous-wave threshold power consumption of about 1 W at 293 K, an output power above 27 mW, and a room-temperature pulsed wall-plug efficiency of 3.9%. A 2 um-wide device achieved stable single-mode lasing across the entire current range, with a side-mode suppression ratio of about 20 dB.

    Why we recommend it: The goblet-shaped waveguide eliminates the semi-insulating InP regrowth process through selective wet etching. The original paper gives room-temperature continuous-wave threshold power consumption and wall-plug efficiency, which can be compared with buried heterostructure devices for context.

Jul 22Wed
  1. Xi'an Institute of Optics and Fine Mechanics (XIOPM) · Research ProgressOptics industry61

    Xi'an Institute of Optics and Precision Mechanics Advances High-Repetition-Rate, High-Energy Ultrafast Thin-Disk Laser

    Teams led by Fu Yuxi and Cao Huabao at the Xi'an Institute of Optics and Precision Mechanics have made new progress in high-repetition-rate, high-energy ultrafast thin-disk lasers.

    Why we recommend it: The original article provides specific data and details that help assess the actual progress in this direction.

Jul 21Tue
  3. Shanghai Institute of Optics and Fine Mechanics (SIOM) · Research UpdatesOptics industry59

    Shanghai Institute of Optics and Mechanics Achieves Single-Shot Array Coherent Diffraction Imaging with Photon Sieve

    The Shanghai Institute of Optics and Mechanics has made progress in single-shot array coherent diffraction imaging with a photon sieve.

    Why we recommend it: The original article provides specific data and details that help assess the actual progress in this direction.

  5. Shanghai Institute of Optics and Fine Mechanics (SIOM) · Research UpdatesOptics industryOptics and AI59

    Shanghai Institute of Optics and Mechanics Accelerates Combinatorial Optimization at Large Spin Scale

    The Shanghai Institute of Optics and Mechanics has made progress in optically accelerated solving of large-spin-scale combinatorial optimization problems.

    Why we recommend it: The original article provides specific data and details that help assess the actual progress in this direction.

Jul 17Fri
  1. Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industry49

    Changchun Institute of Optics Develops Color-Tunable, Highly Efficient Heat-Insulating Programmable Photovoltaic Window

    A team led by Guo Xiaoyang and Liu Xingyuan at the Changchun Institute of Optics, in collaboration with the Changchun Institute of Applied Chemistry, has built asymmetric Fabry-Perot microcavities using double-sided dielectric/metal/dielectric (DMD) electrodes to create color-programmable semi-transparent organic photovoltaic windows. The results were published in Advanced Functional Materials. The device achieves a power conversion efficiency of 10.07%, an average visible light transmittance of 35.9%, an infrared blocking rate of 91.59%, and a color rendering index of 89.8. The reflected color can be tuned by varying the thickness of the MoO3 dielectric layers on both sides, covering most of the sRGB color gamut.

Jul 14Tue
Jul 9Thu
Jul 8Wed
Jun 30Tue
  1. Anhui Institute of Optics and Fine Mechanics (AIOFM) · Research ProgressOptics industryOptics and AI47

    AIOFM Develops AKAN Aerosol Optical Depth Retrieval Algorithm for POSP Polarization Scanner on Gaofen-5B

    The Optical Remote Sensing Center of the Anhui Institute of Optics and Mechanics published a paper in IEEE TGRS proposing an attention-enhanced Kolmogorov-Arnold network (AKAN) method to retrieve aerosol optical depth from POSP polarization observations by the Gaofen-5B satellite. The team built more than 240,000 matched samples using AERONET ground-based data. The model achieved a coefficient of determination R² of 0.9336 and a root mean square error of 0.0492, with 94.25% of results falling within the expected error range. SHAP analysis showed that the sensitive bands and scattering angle features identified by the model are broadly consistent with radiative transfer principles.

Jun 25Thu
  1. Anhui Institute of Optics and Fine Mechanics (AIOFM) · Research ProgressOptics industry54

    AIOFM Achieves Series of Advances in Calibration and Resolution for Laser Heterodyne Spectroscopy Greenhouse Gas Detection

    The Basic Science Center of the Anhui Institute of Optics and Mechanics published three results in Optics and Laser Technology, Optics Express, and Optics Letters, improving the measurement accuracy and spectral resolution of laser heterodyne radiometers (LHR).

Jun 18Thu
Jun 16Tue
  1. Xi'an Institute of Optics and Fine Mechanics (XIOPM) · Research ProgressOptics industry59

    Xi'an Institute of Optics and Precision Mechanics Advances Microscopic Imaging Through Scattering Media

    The Ultrafast Optics Research Department at the Xi'an Institute of Optics and Precision Mechanics has made new progress in optical microscopic imaging through scattering media.

    Why we recommend it: The original article provides specific data and details that help assess the actual progress in this direction.

Jun 12Fri
  1. Anhui Institute of Optics and Fine Mechanics (AIOFM) · Research ProgressOptics industryOptics and AI39

    AIOFM Develops Digital Hydrogel Fluorescence-Enhanced Microsphere System for Amplification-Free Relative Quantification of CRISPR Nucleic Acids

    The Optoelectronics Center of the Anhui Institute of Optics and Fine Mechanics published a paper in Analytical Chemistry describing CrisprDEM, a digital hydrogel fluorescence-enhanced microsphere detection system based on CRISPR/Cas12a that enables amplification-free relative quantification of nucleic acids. The system uses hydrogel microspheres to enrich fluorescent reporter molecules, boosting the fluorescence signal by a factor of about 1,000. A microfluidic chip then spreads the microspheres into a monolayer for imaging, and a K-means algorithm distinguishes positive from negative microspheres, with the proportion of positive microspheres used for quantification.

May 26Tue
May 25Mon
  1. Xi'an Institute of Optics and Fine Mechanics (XIOPM) · Research ProgressOptics industryOptics and AI63

    Xi'an Institute of Optics and Precision Mechanics Reports Series of Advances in Silicon Photonic Interconnect Chips

    Teams led by Wang Binhao and Zhang Wenfu at the Xi'an Institute of Optics and Precision Mechanics have made a series of advances in silicon-based photonic interconnect chips.

    Why we recommend it: The original article provides specific data and details that help assess the actual progress in this direction.

May 19Tue
  1. Xi'an Institute of Optics and Fine Mechanics (XIOPM) · Research ProgressOptics industryOptics and AI61

    Theoretical Breakthrough in Fourier Ptychographic Microscopy

    The State Key Laboratory of Ultrafast Optics Science and Technology has established a prior-free digital reconstruction theory in the field of FPM.

    Why we recommend it: The original article provides specific data and details that help assess the actual progress in this direction.

May 7Thu
May 6Wed
  1. Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industry54

    Changchun Institute Proposes 8-Channel Complex-Coupled DFB Laser Array for Near-Infrared Gas Sensing

    A team led by Academician Wang Lijun at the Changchun Institute of Optics, Fine Mechanics and Physics, together with Zheng Chuantao's team at Jilin University, published a paper in Optics and Laser Technology proposing an 8-channel complex-coupled DFB semiconductor laser array based on high-order surface gratings and periodic current injection, requiring neither epitaxial regrowth nor nanoscale lithography.

Apr 16Thu
  1. Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industry59

    Changchun Institute of Optics and Mechanics MTC-Designed Quantum Cascade Laser Achieves 1.2 µm Ultrabroad Lasing Spectrum at Room Temperature

    A team led by researcher Meng Bo at the Changchun Institute of Optics and Mechanics published a paper in Light: Science & Applications proposing a multistate-to-continuum (MTC) active-region design based on diagonal transitions, and used MOCVD to grow a mid-infrared quantum cascade laser with a single active region and an ultrabroad gain spectrum.

    Why we recommend it: The diagonal-transition design from multiple states to continuum states lets several transition channels contribute gain simultaneously. The original text gives lasing spectral widths of 1.2 µm at room temperature and 1.93 µm at 80 K, directly relevant to applications such as mid-infrared frequency combs.

Apr 13Mon
  1. Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industry54

    Changchun Institute of Optics, Fine Mechanics and Physics Uses Graphite Addition in Binder Jetting Additive Manufacturing of High-Performance Silicon Carbide Mirrors

    A team led by Researcher Zhang Ge at the Changchun Institute of Optics, Fine Mechanics and Physics and Wang Gong's team at the Technology and Engineering Center for Space Utilization, Chinese Academy of Sciences, published a paper in Light: Advanced Manufacturing proposing a binder jetting additive manufacturing method for graphite/silicon carbide composite powder that improves particle flowability and promotes the conversion of free silicon into secondary silicon carbide.

  2. Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industry49

    Changchun Institute of Optics, Fine Mechanics and Physics Achieves Multidimensional Fluorescence Lifetime Imaging in the Second Near-Infrared Window with Yb3+ Energy-Relay Hierarchical Lanthanide Nanoparticles

    A team led by Researcher Chang Yulei at the Changchun Institute of Optics, Fine Mechanics and Physics published a paper in Advanced Materials proposing Yb3+ energy-relay-based hierarchical lanthanide nanostructures that tune ion luminescence lifetimes across 1060-2050 nm. In a Tm3+ system, for example, the lifetime can be continuously tuned from 654 us to 11918 us while the emission intensity at 1850 nm remains essentially unchanged. The team built its own time-gated imaging system based on an MCT short-wave infrared detector, simultaneously distinguishing six targets in mice with inter-channel crosstalk below 10%.

Apr 9Thu
  1. Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industry57

    Changchun Institute of Optics, Fine Mechanics and Physics Develops All-Dielectric Material with Low Infrared Emissivity and High Radio Wave Transmittance

    A team led by Researcher Li Wei at the Changchun Institute of Optics, Fine Mechanics and Physics published a paper in Science Advances proposing long-wave transparent low-emissivity all-dielectric materials (LLM) that achieve mid-infrared reflection through Mie scattering by infrared-transparent dielectric microparticles such as NaCl, avoiding the attenuation of wireless signals caused by metals.

Apr 7Tue
  1. Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industry50

    Changchun Institute of Optics, Fine Mechanics and Physics Proposes Polarization Aberration Compensation Method for Optical Systems Based on Plane Mirrors

    A team led by Associate Researcher Luo Jing at the Changchun Institute of Optics, Fine Mechanics and Physics published a paper in Optics and Lasers in Engineering using the low-frequency polarization aberration produced by plane mirrors in non-parallel optical paths to compensate for the polarization aberration of the optical system itself. In design verification of a typical off-axis three-mirror system, adding a plane mirror and adjusting its pose reduced the system's polarization aberration to 1/15 of its original value, with the full-field average phase retardance dropping from 0.0759 rad to 0.0050 rad, while wavefront aberration and optical efficiency were essentially unaffected.

Mar 27Fri
Mar 26Thu
Mar 12Thu
  1. Hangzhou Institute of Optics and Fine Mechanics · Recent HighlightsOptics industry35

    Russell Center Launches International Cooperation Innovation Team Project on Hollow-Core Fiber

    The National Natural Science Foundation of China international cooperation innovation team project, led by the Russell Center for Advanced Lightwave Science at the Hangzhou Institute of Optics and Mechanics, was launched at the institute on February 8. The project is headed by Professor Philip Russell, with Professor Wang Pengfei's team at Northeast Normal University as the collaborating institution, and runs from January 1, 2026 to December 31, 2028. Focusing on hollow-core fiber, the project addresses challenges such as balancing low loss with high mode purity, controlling broadband ultraviolet pulses, and insufficient mid-infrared pulse performance, through research on optical fiber microstructure design and ultraviolet-to-mid-infrared ultrafast laser technology.

Mar 4Wed
  1. Hangzhou Institute of Optics and Fine Mechanics · Industry NewsOptics industry37

    Fujia Gallium and Shanghai Institute of Optics and Mechanics Report 4-Inch VB-Method Gallium Oxide Single Crystal

    A team from Fujia Gallium and the Shanghai Institute of Optics and Mechanics, Chinese Academy of Sciences, published a paper in CrystEngComm reporting the preparation of (100)-oriented gallium oxide single crystals with a diameter of 4 inches and a thickness exceeding 30 mm using the vertical Bridgman (VB) method. Tests showed wafer HRXRD full width at half maximum of 49.6-64.8 arcsec, and the paper states that the crystals have high crystalline quality and good structural uniformity. The team had previously produced 8-inch gallium oxide single crystals using the VB method.

Jan 5Mon
  1. Hangzhou Institute of Optics and Fine Mechanics · Recent HighlightsOptics industry46

    Anti-Resonant Hollow-Core Fiber Enables Flexible Delivery and Micromachining of High-Power Picosecond Lasers

    The Russell Center at the Hangzhou Institute of Optics and Mechanics, together with the Shanghai Institute of Optics and Fine Mechanics, published a paper in High Power Laser Science and Engineering, demonstrating high-quality transmission and precision machining of high-power picosecond lasers using a single-ring anti-resonant hollow-core fiber.

Dec 18Thu
  1. Hangzhou Institute of Optics and Fine Mechanics · Industry NewsOptics industryOptics and AI37

    Guangzai Technology CO2 LiDAR Used to Validate High-Resolution Urban Carbon Emission Model

    Guangzai Technology, an incubated company of the Hangzhou Institute of Optics and Mechanics, collaborated with the University of Cambridge, Southeast University and others to publish a paper in Sustainable Cities and Society, proposing SCE-Model, a spatiotemporal carbon emission model optimized by machine learning and validated by LiDAR. The model output is highly consistent with coherent differential absorption LiDAR observations (R² = 0.79; ±5 ppm), enabling hourly, block-level carbon emission mapping.

Jun 23Mon
  1. Hangzhou Institute of Optics and Fine Mechanics · Recent HighlightsOptics industry59

    Russell Center and Partners Report in Optica: Hollow-Core Photonic Crystal Fiber Enables Flexible Delivery of Near-Watt, Hundred-Femtosecond 2.8 µm Mid-Infrared Pulses

    The Russell Advanced Lightwave Science Center at the Hangzhou Institute of Optics and Mechanics, together with the Hangzhou Institute for Advanced Study of UCAS, the Shanghai Institute of Optics and Mechanics, and IRFIBER (Ningbo) Optoelectronics Co., Ltd., published a paper in Optica on delivering near-watt, hundred-femtosecond mid-infrared pulses in the 2.8 µm band through a 5 m-long hollow-core photonic crystal fiber with a single-core, eight-ring structure. After evacuation, overall efficiency exceeded 70%, the output was a near-diffraction-limited Gaussian spot, and the fundamental-mode energy fraction exceeded 95%.

    Why we recommend it: The paper gives efficiency, pulse duration, peak power and fundamental-mode fraction, and compares the fiber with free-space optics and solid-core fluoride fiber, making it easier to judge the applicability of hollow-core fiber to mid-infrared ultrafast delivery.

Jan 13Mon
  1. Hangzhou Institute of Optics and Fine Mechanics · Industry NewsOptics industry44

    Fujia Gallium MBE Gallium Oxide Epitaxial Films Match World-Leading Electrical Performance, Published in Materials Today Physics

    A team led by Zhang Hongliang at Xiamen University systematically studied the electrical transport properties of gallium oxide epitaxial films prepared by Fujia Gallium using MBE, with results showing electrical performance on par with the best reported by Japan's NCT and the United States' UCSB teams. Fujia Gallium's UID Ga2O3 films can have background carrier concentrations controlled to 1.6×10^16 cm^-3, room-temperature electron mobility as high as 129 cm^2 V^-1 s^-1, and, after Sn doping, carrier concentrations tunable from 1.7×10^17 to 2.8×10^19 cm^-3.

Jul 10Wed
  1. Guangdian Hui · BriefsOptics industry60

    Progress in Passively Mode-Locked Laser Technology with Ring Cavities at Suzhou Institute of Nano-Tech

    A team at the Suzhou Institute of Nano-Tech, Chinese Academy of Sciences, has developed a theoretical model for PML-SRLs, revealing that operating states are governed by the temporal balance of gain and loss. The model combines time-domain traveling-wave equations with partial differential equations for carrier density, examining the relationship among SOA carrier accumulation rate, SA carrier lifetime and ring-cavity round-trip time. The work, published in Optics Express, also found that an SOA with a narrow gain spectrum and a short resonator configuration can merge output pulses to yield high-energy optical pulses.

    Why we recommend it: Putting gain, absorber and cavity round-trip time into a unified dynamic model offers transferable design insight for understanding mode-locking states and pulse merging in semiconductor ring cavities.