Optical trapping of a spherically symmetric sphere in the ray-optics regime: a model for optical tweezers upon cells

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).

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Circularly symmetric frozen waves and their optical forces in optical tweezers using a ray optics approach

2017 SBMO/IEEE MTT-S International Microwave and Optoelectronics Conference (IMOC) ◽

10.1109/imoc.2017.8121168 ◽

2017 ◽

Author(s):

Amelia Moreira Santos ◽

Pedro Paulo Justino da Silva Arantes ◽

Leonardo Andre Ambrosio

Keyword(s):

Optical Tweezers ◽

Optical Forces ◽

Ray Optics

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NOVEL OPTICAL TRAPPING TOOL GENERATION AND STORAGE CONTROLLED BY LIGHT

Journal of Nonlinear Optical Physics & Materials ◽

10.1142/s0218863510005182 ◽

2010 ◽

Vol 19 (02) ◽

pp. 371-378 ◽

Cited By ~ 13

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.

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Axial optical trapping forces on two particles trapped simultaneously by optical tweezers

Applied Optics ◽

10.1364/ao.44.002667 ◽

2005 ◽

Vol 44 (13) ◽

pp. 2667 ◽

Cited By ~ 8

Author(s):

Shenghua Xu ◽

Yinmei Li ◽

Liren Lou

Keyword(s):

Optical Tweezers ◽

Optical Trapping ◽

Trapping Forces

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Micro-Dumbbells—A Versatile Tool for Optical Tweezers

10.20944/preprints201805.0185.v1 ◽

2018 ◽

Author(s):

Weronika Lamperska ◽

Sławomir Drobczyński ◽

Michał Nawrot ◽

Piotr Wasylczyk ◽

Jan Masajada

Keyword(s):

Laser Beam ◽

Optical Tweezers ◽

Optical Trapping ◽

Viscosity Measurements ◽

Two Photon ◽

Vibration Detection ◽

Holographic Optical Tweezers ◽

Versatile Tool ◽

Micro Tool

Manipulation of micro- and nano-sized objects with optical tweezers is a well established, albeit still evolving technique. While many objects can be trapped directly with focused laser beam(s), for some applications indirect manipulation with tweezers-operated tools is preferred. We introduce a simple, versatile micro-tool operated with holographic optical tweezers. The 40 µm long dumbbell-shaped tool, fabricated with two-photon laser 3D photolithography has two beads for efficient optical trapping and a probing spike on one end. We demonstrate fluids viscosity measurements and vibration detection as examples of possible applications.

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