Researchers Propose a Novel Spectral-Spatial Anomaly Detector for Hyperspectral Data Based on Improved Isolation Forest

Anomaly detection in hyperspectral image is affected by redundant bands and the limited utilization capacity of spectral-spatial information. In this article, we propose a novel Improved Isolation Forest (IIF) algorithm based on the assumption that anomaly pixels are more susceptible to isolation than the background pixels. The proposed IIF is a modified version of the Isolation

Pose-varied swing arm profilometer increases measurement accuracy for aspheric surfaces

Researchers led by Prof. XIONG Ling from Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP) of Chinese Academy of Sciences (CAS) recently developed a pose-varied swing arm profilometer (pvSAP) with increased measurement accuracy for aspheric surfaces. Relevant results were published on Optics Letters.

Researchers generate an integrated beam array with high-density using LCOPA

Recently, the liquid crystal adaptive optics research team from Changchun Institute of Optics, Fine Mechanics and Physics (CIOMP), Chinese Academy of Sciences (CAS) has built a high-density integrated beam array generation system using Liquid Crystal Optical Phased Array (LCOPA). The number of sub-beams in the integrated beam array is 40×40, and the average pointing accuracy is less than 20μrad. This study is published on Optics Communications.

Mechanical Arms Transfer & Suspension Device developed by CIOMP Successfully Mounted Outside China’s Space Station

A transfer for robotic arms and suspension device were successfully mounted on to the outside of the Tianhe core cabin of the China Space Station by the Shenzhou 13 crew ZHAI Zhigang, WANG Yaping and YE Guangfu on November 7, 2021.

Multi-Aperture VCSELs of Varying Size and Shape

New Study demonstrates Single Nanowire Fabrication by Femtosecond Laser

In a study published in Nanomaterials, Dr. ZHAO Zhen from Changchun Institute of Optic, Fine Mechanics and Physics (CIOMP) of Chinese Academy of Sciences (CAS), and his collaborators found that single uniform nanowire can be fabricated by femtosecond laser with the help of a groove.