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Xiang Han
Researcher at National University of Defense Technology
Publications - 38
Citations - 148
Xiang Han is an academic researcher from National University of Defense Technology. The author has contributed to research in topics: Optical tweezers & Laser. The author has an hindex of 6, co-authored 31 publications receiving 104 citations. Previous affiliations of Xiang Han include University College London.
Papers
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Journal ArticleDOI
Observation of spin and orbital rotation of red blood cell in dual-beam fibre-optic trap with transverse offset
TL;DR: The spin and orbital rotation of the red blood cell are achieved simultaneously by introducing a transverse offset to the dual-beam fibre-optic trap, which allows mixing and viewing living cells from different perspectives concurrently without exposing them to any mechanical contact.
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Evanescent wave optical binding forces on spherical microparticles
Xiang Han,Philip H. Jones +1 more
TL;DR: Stable optical binding of spherical microparticles in counter-propagating evanescent optical fields formed by total reflection at a dielectric interface is demonstrated.
Journal ArticleDOI
Back-focal-plane displacement detection using side-scattered light in dual-beam fiber-optic traps.
TL;DR: An approximated model based on ray optics is presented with numerical results that describe the use of the side-scattered light for position detection and finds out that the displacement sensitivity of the detector is null for some critical radii and numerical apertures.
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Coupling between axial and radial motions of microscopic particle trapped in the intracavity optical tweezers.
TL;DR: Results shows that higher laser intensity can make stronger optical confinement in intracavity optical tweezers under the condition of good trap operation, compared with standard opticaltweezers.
Journal ArticleDOI
Optical confinement efficiency in the single beam intracavity optical tweezers.
Tengfang Kuang,Wei Xiong,Bin Luo,Xinlin Chen,Zijie Liu,Xiang Han,Guangzong Xiao,Kaiyong Yang,Hui Luo +8 more
TL;DR: A physical model is established from a completely new perspective to describe the coupling mechanism of the single beam intracavity optical tweezers, using transfer matrices to calculate the loss of the free-space optical path and extracting the scattering loss that caused by the 3D motions of the particle.