The study of optical trapping force from optical tweezers

2007 ◽  
Author(s):  
Yanying Zhu ◽  
Mingli Wang
Keyword(s):  
Optical Tweezers ◽  
Optical Trapping ◽  
Trapping Force

Nanometric plasmonic optical trapping on gold nanostructures

2019 ◽  
Vol 86 (3) ◽  
pp. 30501
Author(s):  
Domna G. Kotsifaki ◽  
Mersini Makropoulou ◽  
Alexander A. Searfetinides
Keyword(s):  
Optical Tweezers ◽  
Single Molecule ◽  
Optical Trapping ◽  
Numerical Aperture ◽  
Resonance Wavelength ◽  
Objective Lens ◽  
Plasmonic Nanostructures ◽  
Theoretical Support ◽  
Trapping Force ◽  
Trapping Forces

The precise noninvasive optical manipulation of nanometer-sized particles by evanescent fields, instead of the conventional optical tweezers, has recently awaken an increasing interest, opening a way for investigating phenomena relevant to both fundamental and applied science. In this work, the optical trapping force exerted on trapped dielectric nanoparticle was theoretically investigated as a function on the trapping beam wavelength and as a function of several plasmonic nanostructures schemes based on numerical simulation. The maximum optical trapping forces are obtained at the resonance wavelength for each plasmonic nanostructure geometry. Prominent tunabilities, such as radius and separation of gold nanoparticles as well as the numerical aperture of objective lens were examined. This work will provide theoretical support for developing new types of plasmonic sensing substrates for exciting biomedical applications such as single-molecule fluorescence.

Novel non-plasmonic optical trapping: nano-structured semiconductor assisted (NASSCA) optical tweezers

2018 ◽  
Author(s):  
Yuki Uenobo ◽  
Tatsuya Shoji ◽  
Ayaka Mototsuji ◽  
Sawa Komoto ◽  
Tatsuya Nagai ◽  
...  
Keyword(s):  
Optical Tweezers ◽  
Optical Trapping

scholarly journals Optical tweezers-based immunosensor detects femtomolar concentrations of antigens

1997 ◽  
Vol 43 (2) ◽  
pp. 379-383 ◽  
Author(s):  
Kristian Helmerson ◽  
Rani Kishore ◽  
William D Phillips ◽  
Howard H Weetall
Keyword(s):  
Optical Tweezers ◽  
Optical Trapping ◽  
Competitive Binding ◽  
Protein Antigen ◽  
Antigen Antibody

Abstract We used optical tweezers (optical trapping technology) to measure the force required to separate antigen–antibody bonds. Under competitive-binding conditions, we used the force determination to detect and measure protein antigen concentrations as small as 1 fmol/L (10−15 mol/L).

Extending the lateral trapping force of optical tweezers

2007 ◽  
Author(s):  
Andrew C. Richardson ◽  
S. Nader S. Reihani ◽  
Lene B. Oddershede
Keyword(s):  
Optical Tweezers ◽  
Trapping Force

NOVEL OPTICAL TRAPPING TOOL GENERATION AND STORAGE CONTROLLED BY LIGHT

2010 ◽  
Vol 19 (02) ◽  
pp. 371-378 ◽  
Author(s):  
P. YOUPLAO ◽  
T. PHATTARAWORAMET ◽  
S. MITATHA ◽  
C. TEEKA ◽  
P. P. YUPAPIN
Keyword(s):  
Optical Tweezers ◽  
Optical Trapping ◽  
Optical Filter ◽  
Optical Tweezer ◽  
Dark Soliton ◽  
Optical Probe ◽  
Bright Soliton ◽  
Design System ◽  
Soliton Pulse ◽  
And Storage

We propose a novel system of an optical trapping tool using a dark-bright soliton pulse-propagating within an add/drop optical filter. The multiplexing signals with different wavelengths of the dark soliton are controlled and amplified within the system. The dynamic behavior of dark bright soliton interaction is analyzed and described. The storage signal is controlled and tuned to be an optical probe which can be configured as the optical tweezer. The optical tweezer storage is embedded within the add/drop optical filter system. By using some suitable parameters, we found that the tweezers storage time of 1.2 ns is achieved. Therefore, the generated optical tweezers can be stored and amplified within the design system. In application, the optical tweezers can be stored and trapped light/atom, which can be transmitted and recovered by using the proposed system.

Measurement of the optical trapping force on micro-particles immersed in fluids

2005 ◽  
Author(s):  
Monica Nadasan ◽  
Revati Kulkarni ◽  
Enrico Ferrari ◽  
Valeria Garbin ◽  
Dan Cojoc ◽  
...  
Keyword(s):  
Optical Trapping ◽  
Micro Particles ◽  
Trapping Force

Beam optics approach to the ray optics model for the optical trapping efficiency of optical tweezers

2012 ◽  
Vol 60 (1) ◽  
pp. 155-158
Author(s):  
SungHyun Kim ◽  
HyunIk Kim ◽  
HyeongJoon Jun ◽  
HyunJi Kim ◽  
Cha-Hwan Oh
Keyword(s):  
Optical Tweezers ◽  
Optical Trapping ◽  
Trapping Efficiency ◽  
Beam Optics ◽  
Ray Optics
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