Results 61 to 70 of about 2,721,612 (374)
A three-dimensional steerable optical tweezer system for ultracold atoms [PDF]
Review of Scientific Instruments 89, 103105 (2018), 2018 We present a three-dimensional steerable optical tweezer system based on two pairs of acousto-optic deflectors. Radio frequencies used to steer the optical tweezers are generated by direct digital synthesis and multiple cross beam dipole traps can be produced through rapid frequency toggling and time averaging.
arxiv +1 more source
Dynamic stereo microscopy for studying particle sedimentation [PDF]
, 2014 We demonstrate a new method for measuring the sedimentation of a single colloidal bead by using a combination of optical tweezers and a stereo microscope based on a spatial light modulator.
Ashkin +25 more
core +1 more source
Independent trapping and manipulation of microparticles using dexterous acoustic tweezers [PDF]
, 2014 An electronically controlled acoustic tweezer was used to demonstrate two acoustic manipulation phenomena: superposition of Bessel functions to allow independent manipulation of multiple particles and the use of higher-order Bessel functions to trap ...
Cochran, Sandy +6 more
core +3 more sources
Alkaline-Earth Atoms in Optical Tweezers [PDF]
Physical Review X, 2018 We demonstrate single-shot imaging and narrow-line cooling of individual alkaline earth atoms in optical tweezers; specifically, strontium-88 atoms trapped in $515.2~\text{nm}$ light.
Alexandre Cooper +5 more
semanticscholar +1 more source
Stretching DNA with optical tweezers [PDF]
Biophysical Journal, 1997 Force-extension (F-x) relationships were measured for single molecules of DNA under a variety of buffer conditions, using an optical trapping interferometer modified to incorporate feedback control. One end of a single DNA molecule was fixed to a coverglass surface by means of a stalled RNA polymerase complex.
Jeff Gelles +4 more
openaire +2 more sources
Nanophotonics, 2023 In structured light tweezers, it is a challenging technical issue to realize the complete circular motion of the trapped particles parallel to the optical axis.
Zhu Liuhao +5 more
doaj +1 more source
Moving live dissociated neurons with an optical tweezer [PDF]
, 2009 The use of an optical tweezer for moving dissociated neurons was studied. The main features of the tweezers are outlined as well as the general principles of its operation.
Chow, Gary, Pine, Jerome
core +1 more source
Optical tweezers in single-molecule experiments
The European Physical Journal Plus, 2020 In the last decades, optical tweezers have progressively emerged as a unique tool to investigate the biophysical world, allowing to manipulate and control forces and movements of one molecule at a time with unprecedented resolution.
A. Zaltron +4 more
semanticscholar +1 more source
Results in Optics, 2021 The classification of the type of trapped particles is a crucial task for an efficient integration of optical-tweezers in intelligent microfluidic devices.
Pedro A.S. Jorge +8 more
doaj
The Effect of Micromotion and Local Stress in Quantum simulation with Trapped Ions in Optical Tweezers [PDF]
, 2022 The ability to program and control interactions provides the key to implementing large-scale quantum simulation and computation in trapped ion systems. Adding optical tweezers, which can tune the phonon spectrum and thus modify the phonon-mediated spin-spin interaction, was recently proposed as a way of programming quantum simulators for a broader ...
arxiv +1 more source