Research Progress
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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 -
Researchers predicted that ultracold atoms have two kinds of stable gap-type dark localized modes in optical lattices.Bose-Einstein condensate (BEC) exhibits a variety of fascinating and unexpected macroscopic phenomena, and has attracted sustained attention in recent years-particularly in the field of solitons and associated nonlinear phenomena. Meanwhile, optical lattice... Recently, based on Newton’s iteration and linear-stability analysis for searching stationary solutions methods, the research group from Xi'an Institute of Optics and Precision Mechanics (XIOPM) of the Chinese Academy of Sciences (CAS) predicted that ultrac...Nov 11, 2019 -
Optical tweezersIntroduction: Optical tweezers is a new type of optical micro-manipulation and micro-fabrication system. Different from conventional mechanical system, the optical tweezers can tweeze, manipulate and fabricate small “work pieces” such as biological cell... ？？ Introduction:
Optical tweezers is a new type of optical micro-manipulation and micro-fabrication system. Different from conventional mechanical system, the optical tweezers can tweeze, manipulate and fabricate small “work pieces” such as biologic...Nov 03, 2011