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Advantages of Holographic Optical Tweezers
Novel Optical Instrumentation for Biomedical Applications, 2003In the last decade optical tweezers became an important tool in microbiology. However the setup becomes very complex if more than one trap needs to be moved. Holographic tweezers offer a very simple and cost efficient way of manipulating several traps independently in all three dimensions with an accuracy of less than 100 nm.
Marcus Reicherter +3 more
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Dynamic holographic optical tweezers
Optics Communications, 2002Optical trapping is an increasingly important technique for controlling and probing matter at length scales ranging from nanometers to millimeters. This paper describes methods for creating large numbers of high-quality optical traps in arbitrary three-dimensional configurations and for dynamically reconfiguring them under computer control. In addition
Jennifer E. Curtis +2 more
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Surface imaging using holographic optical tweezers
Nanotechnology, 2011We present an imaging technique using an optically trapped cigar-shaped probe controlled using holographic optical tweezers. The probe is raster scanned over a surface, allowing an image to be taken in a manner analogous to scanning probe microscopy (SPM), with automatic closed loop feedback control provided by analysis of the probe position recorded ...
Phillips, D.B +7 more
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Nanofabrication with holographic optical tweezers
Review of Scientific Instruments, 2002We describe optical trapping techniques based on holographic optical tweezer arrays useful for assembling colloidal particles into arbitrary arrangements for photonics, optoelectronic, and sensor applications.
Pamela Korda +3 more
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2008
The craze for miniaturization has swept o’er most every nation, but should a hand e’er so slightly tremble no micro-machine can it assemble: and so all those really small bits leave the technicians in fits and the hope for a lab on a chip might seem frightfully flip. Yet, while optical forces are weak they provide the control that we seek. When light’s
Gabriel C. Spalding +2 more
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The craze for miniaturization has swept o’er most every nation, but should a hand e’er so slightly tremble no micro-machine can it assemble: and so all those really small bits leave the technicians in fits and the hope for a lab on a chip might seem frightfully flip. Yet, while optical forces are weak they provide the control that we seek. When light’s
Gabriel C. Spalding +2 more
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Kinect 4 … holographic optical tweezers
Journal of Optics, 2013The 3D position and orientation of a microtool confined in multiple optical traps needs to be controlled in order for one to perform modern, challenging experiments; for example, in order to utilize it as a scanning probe and investigate the surface of optically sensitive cells.
Muhiddin, C. +4 more
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Controlling ghost traps in holographic optical tweezers
Optics Letters, 2011Computer-generated holograms displayed by phase-modulating spatial light modulators have become a well-established tool for beam shaping purposes in holographic optical tweezers. Still, the generation of light intensity patterns with high spatial symmetry and simultaneously without interfering ghost traps is a challenge.
Hesseling C. +3 more
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On-demand vector holographic optical tweezers
Optical Trapping and Optical Micromanipulation XVI, 2019The invention of holographic optical tweezers (HOTs) revolutionized the field of optical tweezers by allowing the simultaneous manipulation of many particles using arrays of scalar beams. Here, we go one step further and produce arrays of digitally controlled Higher-Order Poincare Sphere (HOPs) beams employing a simple set-up using a spatial light ...
Nkosiphile Bhebhe +4 more
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Holographic optical tweezers assisted imaging spectroscopy
Biophotonics Congress: Optics in the Life Sciences Congress 2019 (BODA,BRAIN,NTM,OMA,OMP), 2019Holographic optical tweezers (HOT) is an effective means for optical manipulation. Herein we demonstrate its integration with imaging spectroscopy for biological and biomedical applications.
Mohsen Rakhshandehroo, Wei-Chuan Shih
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Multiplexed spectroscopy with holographic optical tweezers
SPIE Proceedings, 2014We have developed a multiplexed holographic optical tweezers system with an imaging spectrometer to manipulate multiple optically trapped nanosensors and detect multiple fluorescence spectra. The system uses a spatial light modulator (SLM) to control the positions of infrared optical traps in the sample so that multiple nanosensors can be positioned ...
Matthew A. Cibula, David H. McIntyre
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