Results 11 to 20 of about 2,211,122 (242)
Opto-thermoelectric speckle tweezers
Nanophotonics, 2020 Opto-thermoelectric tweezers present a new paradigm for optical trapping and manipulation of particles using low-power and simple optics. New real-life applications of opto-thermoelectric tweezers in areas such as biophysics, microfluidics, and ...
Kotnala Abhay +2 more
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Simulation of superresolution holography for optical tweezers [PDF]
, 2008 Optical tweezers manipulate microscopic particles using foci of light beams. Their performance is therefore limited by diffraction. Using computer simulations of a model system, we investigate the application of superresolution holography for two ...
Thomson, L.C. +14 more
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Force measurements with optical tweezers inside living cells [PDF]
, 2014 The force exerted by optical tweezers can be measured by tracking the momentum changes of the trapping beam, a method which is more general and powerful than traditional calibration techniques as it is based on first principles, but which has not been ...
Farre, A. +9 more
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Optical Tweezers Approaches for Probing Multiscale Protein Mechanics and Assembly
Frontiers in Molecular Biosciences, 2020 Multi-step assembly of individual protein building blocks is key to the formation of essential higher-order structures inside and outside of cells. Optical tweezers is a technique well suited to investigate the mechanics and dynamics of these structures ...
Kathrin Lehmann +7 more
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Advanced techniques in Raman tweezers microspectroscopy for applications in biomedicine [PDF]
, 2008 This thesis investigates the use of Raman tweezers microspectroscopy to interrogate the biochemistry of single biological cells. Raman tweezers microspectroscopy is a powerful technique, which combines traditional Raman microspectroscopy and optical ...
Jess, Phillip R.T.
core +2 more sources
Generation of Hybrid Optical Trap Array by Holographic Optical Tweezers
Frontiers in Physics, 2021 Enabled by multiple optical traps, holographic optical tweezers can manipulate multiple particles in parallel flexibly. Spatial light modulators are widely used in holographic optical tweezers, in which Gaussian point (GP) trap arrays or special mode ...
Xing Li +12 more
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Applied Sciences, 2020 An optical tweezer composed of a strongly focused single-spatial-mode Gaussian beam of a red-detuned 1064-nm laser can confine a single-cesium (Cs) atom at the strongest point of the light intensity.
Rui Sun +4 more
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Micromachines, 2023 Counter-propagating optical tweezers are experimental platforms for the frontier exploration of science and precision measurement. The polarization of the trapping beams significantly affects the trapping status. Using the T-matrix method, we numerically
Ming Chen +7 more
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Accounting for polarization in the calibration of a donut beam axial optical tweezers. [PDF]
PLoS ONE, 2018 Advances in light shaping techniques are leading to new tools for optical trapping and micromanipulation. For example, optical tweezers made from Laguerre-Gaussian or donut beams display an increased axial trap strength and can impart angular momentum to
Russell Pollari, Joshua N Milstein
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Ultra-short bandwidth optical tweezer generation using GaAs ring resonator system
Results in Physics, 2019 In this article, the modified add/drop multiplexer system as ring resonator is proposed for optical tweezers generation. The entire effect is analyzed by the nonlinear existence of the proposed structure.
I.S. Amiri +3 more
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