Results 1 to 10 of about 4,263 (167)
Zero-order free holographic optical tweezers. [PDF]
Opt Express, 2023 Holographic optical tweezers (HOTs) use spatial light modulators (SLM) to modulate light beams, thereby enabling the dynamic control of optical trap arrays with complex intensity and phase distributions. This has provided exciting new opportunities for cell sorting, microstructure machining, and studying single molecules.
Yun X +7 more
europepmc +3 more sources
Holographic Optical Tweezers That Use an Improved Gerchberg–Saxton Algorithm [PDF]
Micromachines, 2023 It is very important for holographic optical tweezers (OTs) to develop high-quality phase holograms through calculation by using some computer algorithms, and one of the most commonly used algorithms is the Gerchberg–Saxton (GS) algorithm. An improved GS
Zhehai Zhou +4 more
doaj +2 more sources
Nanoscopy of bacterial cells immobilized by holographic optical tweezers [PDF]
Nature Communications, 2016 Nanoscopy of non-adherent cells is currently not possible, due to their movement in solution. Here the authors immobilize and manipulate fixedE. coli by multiple optical traps; their holographic optical tweezers enable dSTORM imaging of orthogonal planes
Robin Diekmann +5 more
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Computer-generated holographic optical tweezer arrays [PDF]
Review of Scientific Instruments, 2001 Holographic techniques significantly extend the capabilities of laser tweezing, making possible extended trapping patterns for manipulating large numbers of particles and volumes of soft matter. We describe practical methods for creating arbitrary configurations of optical tweezers using computer-generated diffractive optical elements.
Dufresne, Eric R. +4 more
openaire +3 more sources
Red blood cell flickering activity locally controlled by holographic optical tweezers [PDF]
iScienceSummary: Red blood cells possess a singular mechanobiology, enabling efficient navigation through capillaries smaller than their own size. Their plasma membrane exhibits non-equilibrium shape fluctuation, often reported as enhanced flickering activity ...
Niccolò Caselli +6 more
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In situ single-atom array synthesis using dynamic holographic optical tweezers [PDF]
Nature Communications, 2016 It would be desirable to have a reliable and scalable method to manipulate neutral-atoms for the creation of controllable quantum systems. Here the authors demonstrate real-time transport of single rubidium atoms in holographic microtraps controlled by ...
Hyosub Kim +5 more
doaj +2 more sources
Processing carbon nanotubes with holographic optical tweezers
Optics Express, 2004 3 pages, 1 ...
Plewa, Joseph +3 more
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A compact holographic optical tweezers instrument [PDF]
Review of Scientific Instruments, 2012 Holographic optical tweezers have found many applications including the construction of complex micron-scale 3D structures and the control of tools and probes for position, force, and viscosity measurement. We have developed a compact, stable, holographic optical tweezers instrument which can be easily transported and is compatible with a wide range of
Gibson, G.M. +7 more
openaire +6 more sources
Holographic Optical Tweezers: Techniques and Biomedical Applications
Applied Sciences, 2022 Holographic optical tweezers (HOT) is a programmable technique used for manipulation of microsized samples. In combination with computer-generation holography (CGH), a spatial light modulator reshapes the light distribution within the focal area of the ...
Hui-Chi Chen, Chau-Jern Cheng
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Translation and manipulation of silicon nanomembranes using holographic optical tweezers [PDF]
Nanoscale Research Letters, 2011 We demonstrate the use of holographic optical tweezers for trapping and manipulating silicon nanomembranes. These macroscopic free-standing sheets of single-crystalline silicon are attractive for use in next-generation flexible electronics.
Oehrlein Stefan +5 more
doaj +2 more sources