A research team led by Prof. Dr. ZHANG Wenfu from Xi'an Institute of Optics and Precision Mechanics (XIOPM) of the Chinese Academy of Sciences (CAS) proposed a method for AM multiplexing and demultiplexing based on a dielectric metasurface. Employing the off-axis technique and spin photonic Hall effect, the orbital ...
18-03-2020
Imaging correlography is an effective method for long-distance imaging, it recovers an object using only the knowledge of the Fourier modulus without the needs of phase information. A research team led by Prof. Dr. SONG Zongxi from Xi'an Institute of Optics and Precision Mechanics (XIOPM) proposed a flexible optimiz...
16-03-2020
Deep feature-based methods have received extensive attention and become the mainstream research in the remote sensing scene classification (RSSC) task. A new mothed, the end-to-end feature aggregation CNN (FACNN), is proposed to alleviate the problem that the information of semantic labels cannot be explored to faci...
11-03-2020
A research team led by Dr. WANG Jie from Xi'an Institute of Optics and Precision Mechanics (XIOPM) of the Chinese Academy of Sciences (CAS) presents a unique growth technology to eliminate the stacking faults (SFs) in semipolar GaN grown on sapphire. Based on this breakthrough, the dream of producing device-quality,...
10-03-2020
Self-trapped modes suffer critical collapse in two-dimensional cubic systems. To overcome such a collapse, linear periodic potentials or competing nonlinearities between self-focusing cubic and self-defocusing quintic nonlinear terms are often introduced. A research team led by Prof. Dr. ZENG Jianhua from XIOPM prop...
06-03-2020
Optical trapping has become a powerful tool in numerous fields such as biology, physics, and chemistry. But, in conventional optical trapping systems, trapping and imaging share the same objective lens, confining the region of observation to the focal plane. A research team led by Prof. Dr. YAO Baoli from XIOPM deve...
05-03-2020
Nonlinear Fractional Schr？dinger Equation (NLFSE) is also adopted in soliton properties investigation recently. The formation and propagation stability of solitons in 1D saturable fractional media with nonlinear lattice schemes are unclear.To set up a physical model under the nonlinear fractional Schr？dinger equat...
04-03-2020
passively mode-locked fiber lasers (MLLs) have rapidly developed and been widely used in many application fields.Over the past decades, theoretical analysis models related to noise characterization have been built. However, no detailed study on timing jitter and phase noise at different harmonics of a passively MLL ...
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