Research Progress
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Noise-resistant matching algorithm integrating regional information for low-light stereo visionLow-light stereo vision is a challenging problem because images captured in dark environment usually suffer from strong random noises. Some widely adopted algorithms, such as semiglobal matching, mainly depend on pixel-level information. The accuracy of loc...Nov 27, 2019 -
Tunable broadband emission from red to blue by gamma radiation in multicomponent phosphate glassesPengfei Wang’s research team demonstrate for the first time that the tunable broadband emission from red to blue can be obtained by gamma radiation in multicomponent phosphate glasses. Gamma radiation causes the increased phosphate-related non-bridging oxy...Nov 27, 2019 -
Adaptive-window angular spectrum algorithm for near-field ptychographyNear-field ptychography provides advantages over far-field ptychography that large field-of-view (FOV) can be imaged with fewer diffraction images, and with weaker requirements on the detector dynamic range and beam coherence, which has drawn attention rece...Nov 22, 2019 -
Polarization properties of calibration reflector system in the polarization-modulated space laser communicationS-polarization light and p-polarization light are mutually cross orthogonal, which can be used as signal light for emitting and receiving in the polarization-modulated space laser communication, respectively. Due to the retro reflection characteristics of t...Nov 22, 2019 -
Stabilizing 2-D Dark Gap Solitons and Vortices Using Bright Defects in Optical LatticesDark solitons in cigar-shaped BECs have been observed. However, the dark gap solitons have remained experimentally unproven, and their properties in more than one dimension, unknown. Recently, researchers from Xi'an Institute of Optics and Precision Mechani... Bose-Einstein condensate (BEC), a state of matter composed of ideal dilute Bose gases cooled down to an extremely low temperature, is a nonlinear medium whose nonlinearity originates from intrinsic atom-atom collisions. Theories and experiments have confirm...Nov 11, 2019