Results 251 to 260 of about 345,999 (291)

Optically manipulating superconductors

Science, 2014
Superconductivity In superconductors, electrons of opposite momenta pair to form a highly correlated state that manages to flow without encountering any resistance. Matsunaga et al. manipulated the wavefunction of these pairs in the superconductor NbN with an electromagnetic pulse that they transmitted through a thin layer of the material (see the ...
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Micro-Optical Elements for Optical Manipulation

Optics and Photonics News, 2006
Using micro-optical elements can be an effective, low-cost way to shape laser micro-beams, which are needed for optical trapping and manipulation. This article covers various designs of micro-optical elements that are used to generate the necessary optical vortices within a beam.
Xiaocong Yuan, Balpreet Singh Ahluwalia, Wai Chye Cheong, Lesheng Zhang, Jing Bu, Shaohua Tao, Ken Jin Moh, Jiao Lin   +7 more
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Plasmon-based optical manipulation

2007 European Conference on Lasers and Electro-Optics and the International Quantum Electronics Conference, 2007
The current work provides a first experimental demonstration of a novel in-plane manipulation method based on the action of SP forces rather than conventional photonic forces, both at homogeneous and patterned metal surfaces.
M. Righini, A. Zelenina, R. Quidant, C. Girard   +3 more
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A revolution in optical manipulation

Nature, 2003
Optical tweezers use the forces exerted by a strongly focused beam of light to trap and move objects ranging in size from tens of nanometres to tens of micrometres. Since their introduction in 1986, the optical tweezer has become an important tool for research in the fields of biology, physical chemistry and soft condensed matter physics.
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Optical Manipulation of Hydrosomes

Frontiers in Optics 2009/Laser Science XXV/Fall 2009 OSA Optics & Photonics Technical Digest, 2009
We present a novel implementation of optical tweezers and microfluidics that allow for the controlled production and manipulation of monodisperse water droplets in an immiscible phase - hydrosomes.
Carlos López-Mariscal, Kris Helmerson
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Optical Manipulation of Microscale Fluid Flow

Physical Review Letters, 2003
A novel optical method is used both to probe and to control dynamics in experiments on the spreading of microscale liquid films over solid substrates. The flow is manipulated by thermally induced surface-tension gradients that are regulated by controlling the absorption of light in the substrate.
Nicolas, Garnier, Roman O, Grigoriev, Michael F, Schatz   +2 more
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GPC-based optical manipulation

Adaptive Optics: Analysis and Methods/Computational Optical Sensing and Imaging/Information Photonics/Signal Recovery and Synthesis Topical Meetings on CD-ROM, 2005
The Generalized Phase Contrast (GPC) method enables conversion of phase-only modulation to highly photon efficient light distributions. GPC targets a number of applications such as interactive optical manipulation, wavefront sensing, optical encryption and integrated micro-optics.
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Optical manipulation for single‐cell studies

Journal of Biophotonics, 2010
AbstractIn the last decade optical manipulation has evolved from a field of interest for physicists to a versatile tool widely used within life sciences. This has been made possible in particular due to the development of a large variety of imaging techniques that allow detailed information to be gained from investigations of single cells.
Kerstin, Ramser, Dag, Hanstorp
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Imaging and Optically Manipulating Neuronal Ensembles

Annual Review of Biophysics, 2017
The neural code that relates the firing of neurons to the generation of behavior and mental states must be implemented by spatiotemporal patterns of activity across neuronal populations. These patterns engage selective groups of neurons, called neuronal ensembles, which are emergent building blocks of neural circuits.
Luis, Carrillo-Reid, Weijian, Yang, Jae-Eun, Kang Miller, Darcy S, Peterka, Rafael, Yuste   +4 more
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4D optical multibeam manipulation

SPIE Proceedings, 2005
The Generalized Phase Contrast (GPC) method enables virtually loss free conversion of spatial phase patterns to highly efficient light intensity distributions. The GPC-method has been used in a number of applications requiring parallel light-beam encoding such as in advanced user-controlled optical micro-manipulation, wavefront sensing and generation ...
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