Results 1 to 10 of about 888 (159)
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
doaj +7 more sources
Automated trapping, assembly, and sorting with holographic optical tweezers [PDF]
Optics Express, 2006 We combine real-time feature recognition with holographic optical tweezers to automatically trap, assemble, and sort micron-sized colloidal particles. Closed loop control will enable new applications of optical micromanipulation in biology, medicine, materials science, and possibly quantum computation.
Eric R Dufresne
exaly +4 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
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
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
doaj +3 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
doaj +3 more sources
Optical Calibration of Holographic Acoustic Tweezers
IEEE Transactions on Instrumentation and Measurement, 2023 Recently, acoustic tweezers based on an array of ultrasonic transducers have been reported taking inspiration from holographic optical tweezers. In the latter technique, the calibration of the optical trap is an essential procedure to obtain the trap stiffnesses.
Sonia Marrara +2 more
exaly +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
doaj +2 more sources
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
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