Dielectric enhanced nanoparticles for three-dimensional optical manipulation

2009 ◽  
Author(s):  
Woei Ming Lee ◽  
Jose Luis Hernández-Pozos ◽  
Liliana Irais Vera-Robles ◽  
Antonio Campero ◽  
Pascal Andre ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Optical Manipulation

Three-dimensional optical manipulation of trapped light-absorbing particles based on a hollow beam

2021 ◽  
Author(s):  
Wending Zhang ◽  
Xuemei Cheng ◽  
Xing Wang ◽  
Chen Niu ◽  
Haowei Chen ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Optical Manipulation ◽  
Hollow Beam

scholarly journals Three-dimensional holographic optical manipulation through a high-numerical-aperture soft-glass multimode fibre

2017 ◽  
Vol 12 (1) ◽  
pp. 33-39 ◽  
Author(s):  
Ivo T. Leite ◽  
Sergey Turtaev ◽  
Xin Jiang ◽  
Martin Šiler ◽  
Alfred Cuschieri ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Numerical Aperture ◽  
Optical Manipulation ◽  
High Numerical Aperture ◽  
Soft Glass

scholarly journals Three-dimensional optical manipulation of a single electron spin

2013 ◽  
Vol 8 (3) ◽  
pp. 175-179 ◽  
Author(s):  
Michael Geiselmann ◽  
Mathieu L. Juan ◽  
Jan Renger ◽  
Jana M. Say ◽  
Louise J. Brown ◽  
...  
Keyword(s):  
Electron Spin ◽  
Three Dimensional ◽  
Single Electron ◽  
Optical Manipulation

scholarly journals Cubic-Phase Metasurface for Three-Dimensional Optical Manipulation

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1730
Author(s):  
Hsin Yu Kuo ◽  
Sunil Vyas ◽  
Cheng Hung Chu ◽  
Mu Ku Chen ◽  
Xu Shi ◽  
...  
Keyword(s):  
Three Dimensional ◽  
Visible Region ◽  
Axial Direction ◽  
Spatial Light Modulators ◽  
Biological Research ◽  
Optical Manipulation ◽  
Cubic Phase ◽  
Self Healing ◽  
Airy Beam ◽  
3D Manipulation

The optical tweezer is one of the important techniques for contactless manipulation in biological research to control the motion of tiny objects. For three-dimensional (3D) optical manipulation, shaped light beams have been widely used. Typically, spatial light modulators are used for shaping light fields. However, they suffer from bulky size, narrow operational bandwidth, and limitations of incident polarization states. Here, a cubic-phase dielectric metasurface, composed of GaN circular nanopillars, is designed and fabricated to generate a polarization-independent vertically accelerated two-dimensional (2D) Airy beam in the visible region. The distinctive propagation characteristics of a vertically accelerated 2D Airy beam, including non-diffraction, self-acceleration, and self-healing, are experimentally demonstrated. An optical manipulation system equipped with a cubic-phase metasurface is designed to perform 3D manipulation of microscale particles. Due to the high-intensity gradients and the reciprocal propagation trajectory of Airy beams, particles can be laterally shifted and guided along the axial direction. In addition, the performance of optical trapping is quantitatively evaluated by experimentally measured trapping stiffness. Our metasurface has great potential to shape light for compact systems in the field of physics and biological applications.

Nano-Particle Manipulated with Near-Field Optical Tweezers

2011 ◽  
Vol 299-300 ◽  
pp. 1068-1071
Author(s):  
Jing Tang ◽  
Li Jun Yang ◽  
Bing Hui Liu ◽  
Yang Wang
Keyword(s):  
Optical Tweezers ◽  
Near Field ◽  
Three Dimensional ◽  
Direct Calculation ◽  
Nano Particles ◽  
Minimum Size ◽  
Optical Manipulation ◽  
Maxwell Stress Tensor ◽  
Difference Time

By applying the direct calculation of Maxwell stress tensor using three-dimensional finite difference time domain method, the feasibility of using a metal-coated fiber probe to create near-field optical tweezers is investigated. Numerical results indicate that these schemes are able to trap nano-particles with lower laser intensity than that required by conventional optical tweezers. The near-field optical trapping systems that are more flexible than conventional optical tweezers are built. In experiments, 120-nm polystyrene particles are trapped in a multi-circular shape with a minimum size of 400 nm. The realization of trapping particles in the range of tens of nanometers largely promotes the role of near-field optical manipulation at the nanometer scale.

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