Results 21 to 30 of about 4,302 (205)
Marker-free cell discrimination by holographic optical tweezers [PDF]
Journal of the European Optical Society-Rapid Publications, 2009 We introduce a method for marker-free cell discrimination based on optical tweezers. Cancerous, non-cancerous, and drug-treated cells could be distinguished by measuring the trapping forces using holographic optical tweezers.
Schaal F. +5 more
doaj +1 more source
Design of Multi-Cell Cooperative Control Algorithm Based on Fuzzy Brain Emotional Learning
Applied Sciences, 2022 Multi-cell cooperative control can be competent for the current increasingly complex biomedical experiments, greatly improving the efficiency of cell manipulation experiments.
Jing Zhao +4 more
doaj +1 more source
APL Photonics, 2021 We report on reversible and continuously deformable soft micro-resonators and the control of their resonance split and directional emission.
Mark Douvidzon +8 more
doaj +1 more source
Aberration correction in holographic optical tweezers [PDF]
Optics Express, 2006 Holographic or diffractive optical components are widely implemented using spatial light modulators within optical tweezers to form multiple, and/or modified traps. We show that by further modifying the hologram design to account for residual aberrations, the fidelity of the focused beams can be significantly improved, quantified by a spot sharpness ...
Wulff, Kurt D. +7 more
openaire +4 more sources
Trapping performance of holographic optical tweezers generated with different hologram algorithms
AIP Advances, 2021 Quantitative measurement of small forces and small displacement using holographic optical tweezers (HOTs) is finding increasing applications due to the features of non-contact and high accuracy manipulation. Although hologram optimization algorithms have
M. R. He +7 more
doaj +1 more source
Scanning holographic optical tweezers
Optics Letters, 2017 The aim of this Letter is to introduce a new optical tweezers approach, called scanning holographic optical tweezers (SHOT), which drastically increases the working area (WA) of the holographic-optical tweezers (HOT) approach, while maintaining tightly focused laser traps. A 12-fold increase in the WA is demonstrated.
L A, Shaw +3 more
openaire +2 more sources
A Step-by-step Guide to the Realisation of Advanced Optical Tweezers [PDF]
, 2015 Since the pioneering work of Arthur Ashkin, optical tweezers have become an indispensable tool for contactless manipulation of micro- and nanoparticles.
Gigain, Sylvain +6 more
core +3 more sources
Single-Cell Elasticity Measurement with an Optically Actuated Microrobot
Micromachines, 2020 A cell elasticity measurement method is introduced that uses polymer microtools actuated by holographic optical tweezers. The microtools were prepared with two-photon polymerization. Their shape enables the approach of the cells in any lateral direction.
István Grexa +6 more
doaj +1 more source
Positioning Accuracy in Holographic Optical Traps
Micromachines, 2021 Spatial light modulators (SLMs) have been widely used to achieve dynamic control of optical traps. Often, holographic optical tweezers have been presumed to provide nanometer or sub-nanometer positioning accuracy.
Frederic Català-Castro +1 more
doaj +1 more source
The effect of external forces on discrete motion within holographic optical tweezers [PDF]
, 2007 Holographic optical tweezers is a widely used technique to manipulate the individual positions of optically trapped micron-sized particles in a sample.
Eriksson, E. +4 more
core +1 more source