Research in precision optics, optical fabrication, large-aperture optics and laser processing at the Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences.
Chuangsi Zhiye (Beijing) Optoelectronic Technology held a plaque-unveiling and new plant launch ceremony, with its ultra-precision optical component pilot production base, representing a total investment of RMB 200 million and a floor area of 5,800 square meters, commencing operations at the same time. The facility is planned to house five pilot production lines. The company's revenue has grown from the millions of yuan level to over RMB 200 million.
Jixi Semiconductor, an incubatee of the Hangzhou Institute of Optics and Mechanics, has closed a Pre-A round worth tens of millions of yuan, with joint investment from Shanghai Science and Technology Innovation Fund, CASSTAR and Zhongying Venture Capital. The funds will go toward PCSEL (photonic crystal surface-emitting laser) product R&D and capacity expansion.
The team of Academician Zhang Xuejun and Researcher Li Longxiang at the Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) published the review "Optical manufacturing and testing of large-aperture optical mirrors: a review" in Light: Advanced Manufacturing, systematically surveying the processing and testing technologies for large-aperture optical components using major international telescope projects as case studies.
A team led by Academician Zhang Xuejun at the Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) published a paper in Laser & Photonics Reviews, proposing femtosecond laser direct writing of amorphous silicon thin films below the ablation threshold, using residual stress generated by solid-phase transformation to form controllable nanoscale surface topography.
A team led by researcher Li Shaojuan at the Changchun Institute of Optics, Fine Mechanics and Physics built a visual-olfactory bimodal neuromorphic device based on a MoS2/SnS2 floating-gate heterostructure. It 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. Adding the optical modality raised classification accuracy for 12 gases from 52.24% to 98.27%, while recognition accuracy for 51 gas mixtures reached 89.32%.
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. The active region is formed by selective wet etching, eliminating the semi-insulating InP lateral regrowth process. A 1 mm × 3 μm device achieved a continuous-wave threshold power 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 μm-wide device maintained 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 step through selective wet etching. The paper reports room-temperature continuous-wave threshold power and wall-plug efficiency, which can be compared with buried-heterostructure devices.
Jul 17Fri
Friday
Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industryAI score4949
A team led by Guo Xiaoyang and Liu Xingyuan at the Changchun Institute of Optics, Fine Mechanics and Physics, working 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 rejection 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 the two sides, covering most of the sRGB color gamut.
The team of Academician Wang Lijun at the Changchun Institute of Optics and Mechanics, 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 no epitaxial regrowth or nanoscale lithography.
A team led by researcher Meng Bo at the Changchun Institute of Optics, Fine Mechanics and Physics 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 allows several transition channels to contribute gain simultaneously. The paper reports 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
Monday
Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) · Research ProgressOptics industryAI score5454
A team led by researcher Zhang Ge at the Changchun Institute of Optics, Fine Mechanics and Physics and a team led by Wang Gong 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.
A team led by researcher Chang Yulei at the Changchun Institute of Optics, Fine Mechanics and Physics published a paper in Advanced Materials proposing hierarchical lanthanide nanostructures based on Yb³⁺ energy relay that tune ion luminescence lifetimes across 1060-2050 nm. In a Tm³⁺ system, for example, the lifetime can be continuously tuned from 654 μs to 11918 μs 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%.
A team led by researcher Li Wei at the Changchun Institute of Optics, Fine Mechanics and Physics published a paper in Science Advances proposing an all-dielectric long-wave transparent low-emissivity material (LLM) that achieves mid-infrared reflection through Mie scattering by infrared-transparent dielectric microparticles such as NaCl, avoiding the attenuation of wireless signals caused by metals.
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 generated by plane mirrors in non-parallel optical paths to compensate 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.