Infrared Locking Method Tackles Mirror Coating Challenge for Gravitational-Wave Detectors
Researchers have developed and tested a new infrared light locking method that could support mirror coating schemes for gravitational-wave detector upgrades.
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Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industryAI score5454 CIOMP Team Led by Zhang Xuejun and Li Longxiang Publishes Review on Large-Aperture Optics Manufacturing and Testing in Light
A team led by Academician Zhang Xuejun and Researcher Li Longxiang at the Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) has published the review Optical manufacturing and testing of large-aperture optical mirrors: a review in Light: Advanced Manufacturing, systematically surveying processing and testing technologies for large-aperture optical components using major international telescope projects as case studies.
Shanghai Institute of Optics and Fine Mechanics (SIOM) · Research UpdatesOptics industryPicksAI score6969 SIOM Achieves First Absolute Wavefront Measurement of an EUV Light Source
The Shanghai Institute of Optics and Fine Mechanics and Harbin Institute of Technology have used a photon sieve to achieve the first absolute wavefront measurement of an EUV light source, solving the challenge of absolute wavefront measurement for extreme-ultraviolet and soft X-ray sources.
Anhui Institute of Optics and Fine Mechanics (AIOFM) · Research ProgressOptics industryAI score4949 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.
Anhui Institute of Optics and Fine Mechanics (AIOFM) · Research ProgressOptics industryOptics and AIAI score3939 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.