Effect of the fiber radious core variations on far-field distribution of twin core optical tweezers

2010 ◽  
Author(s):  
A. Rahimi-Kazerooni ◽  
F. Emami
Keyword(s):  
Optical Tweezers ◽  
Field Distribution ◽  
Far Field

Optical intensity far-field distribution of MEMS micro-mirror arrays by Fraunhofer diffraction

2021 ◽  
Vol 14 (10) ◽  
pp. 102006
Author(s):  
Bin Zhang ◽  
Yu Zhang ◽  
Guohui Yang ◽  
Chunhui Wang
Keyword(s):  
Field Distribution ◽  
Far Field ◽  
Optical Intensity ◽  
Fraunhofer Diffraction

Influence of polarization direction on far field distribution of laser array

2010 ◽  
Vol 22 (7) ◽  
pp. 1445-1449
Author(s):  
任爱红 Ren Aihong ◽  
张蓉竹 Zhang Rongzhu ◽  
孙年春 Sun Nianchun
Keyword(s):  
Field Distribution ◽  
Far Field ◽  
Polarization Direction ◽  
Laser Array

Influence of surface characteristics of continuous phase plate on far field distribution

2014 ◽  
Vol 26 (10) ◽  
pp. 102003
Author(s):  
肖谦裔 Xiao Qianyi ◽  
吕晨 Lü Chen ◽  
张蓉竹 Zhang Rongzhu
Keyword(s):  
Field Distribution ◽  
Surface Characteristics ◽  
Continuous Phase ◽  
Phase Plate ◽  
Far Field

scholarly journals Displacement Detection Decoupling in Counter-Propagating Dual-Beams Optical Tweezers with Large-Sized Particle

Sensors ◽  
2020 ◽  
Vol 20 (17) ◽  
pp. 4916
Author(s):  
Xunmin Zhu ◽  
Nan Li ◽  
Jianyu Yang ◽  
Xingfan Chen ◽  
Huizhu Hu
Keyword(s):  
Optical Tweezers ◽  
Ground State ◽  
Low Cost ◽  
Three Dimensional ◽  
Far Field ◽  
Sensing Platform ◽  
Detection Ratio ◽  
Novel Method ◽  
Quantum Ground State ◽  
Ratio Reduction

As a kind of ultra-sensitive acceleration sensing platform, optical tweezers show a minimum measurable value inversely proportional to the square of the diameter of the levitated spherical particle. However, with increasing diameter, the coupling of the displacement measurement between the axes becomes noticeable. This paper analyzes the source of coupling in a forward-scattering far-field detection regime and proposes a novel method of suppression. We theoretically and experimentally demonstrated that when three variable irises are added into the detection optics without changing other parts of optical structures, the decoupling of triaxial displacement signals mixed with each other show significant improvement. A coupling detection ratio reduction of 49.1 dB and 22.9 dB was realized in radial and axial directions, respectively, which is principally in accord with the simulations. This low-cost and robust approach makes it possible to accurately measure three-dimensional mechanical quantities simultaneously and may be helpful to actively cool the particle motion in optical tweezers even to the quantum ground state in the future.

scholarly journals Multiple lobes in the far-field distribution of terahertz quantum-cascade lasers due to self-interference

AIP Advances ◽  
2016 ◽  
Vol 6 (6) ◽  
pp. 065104 ◽  
Author(s):  
B. Röben ◽  
M. Wienold ◽  
L. Schrottke ◽  
H. T. Grahn
Keyword(s):  
Field Distribution ◽  
Quantum Cascade Lasers ◽  
Far Field ◽  
Quantum Cascade ◽  
Cascade Lasers

Plasmonic Nanoclusters with Rotational Symmetry: Polarization-Invariant Far-Field ResponsevsChanging Near-Field Distribution

ACS Nano ◽  
2013 ◽  
Vol 7 (12) ◽  
pp. 11138-11146 ◽  
Author(s):  
Mohsen Rahmani ◽  
Edward Yoxall ◽  
Ben Hopkins ◽  
Yannick Sonnefraud ◽  
Yuri Kivshar ◽  
...  
Keyword(s):  
Field Distribution ◽  
Rotational Symmetry ◽  
Near Field ◽  
Far Field

Far-Field and Near-Field Distribution of GaN-Based Photonic Crystal LEDs With Guided Mode Extraction

2009 ◽  
Vol 15 (4) ◽  
pp. 1234-1241 ◽  
Author(s):  
Chun-Feng Lai ◽  
Jim-Yong Chi ◽  
Hao-Chung Kuo ◽  
Hsi-Hsuan Yen ◽  
Chia-En Lee ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Field Distribution ◽  
Near Field ◽  
Far Field ◽  
Guided Mode ◽  
Mode Extraction
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