Results 91 to 100 of about 53,364 (200)

Comment on ''Measurement of Effective Temperatures in an Aging Colloidal Glass'' [PDF]

, 2007
We measure the fluctuations of the position of a silica bead trapped by an optical tweezers during the aging of a Laponite suspension.
Ciliberto, Sergio, Jop, Pierre, Petrosyan, Artyom   +2 more
core   +2 more sources

Optical trapping and optical binding using cylindrical vector beams

Atti della Accademia Peloritana dei Pericolanti : Classe di Scienze Fisiche, Matematiche e Naturali, 2011
We report on the use of cylindrical vector beams for optical manipulation of micron and sub-micron sized particles using the methods of a single-beam gradient force trap (optical tweezers) and an evanescent-field surface trap (optical binding).
S. E. Skelton, M. Sergides, R. Patel, E. Karczewska, O. M. Marago', P. H. Jones   +5 more
doaj   +1 more source

Measuring storage and loss moduli using optical tweezers: broadband microrheology

, 2009
We present an experimental procedure to perform broadband microrheological measurements with optical tweezers. A generalised Langevin equation is adopted to relate the time-dependent trajectory of a particle in an imposed flow to the frequency-dependent ...
Cooper, Jonathan M., Evans, R. M. L., Gibson, Graham M., Padgett, Miles J., Tassieri, Manlio, Warren, Rebecca, Yao, Alison M.   +6 more
core   +1 more source

Orientation- and wavelength-dependent sperm motility in optical trapping

Journal of Innovative Optical Health Sciences
Optical tweezers technology has the characteristics of noncontact manipulation in three dimensions and steerable separation in solutions, and could be applied to obtain a separated sperm with high quality for intracytoplasmic sperm injection (ICSI ...
Juan Wang, Jifu Lyu, Haoyu Pan, Xinyu Fan, Xiang Jiang, Xuhui Bao, Yi Wang, Fengya Lu, Zhiguo Zhang, Zhensheng Zhong, Jinhua Zhou   +10 more
doaj   +1 more source

Forces from highly focused laser beams: modeling, measurement and application to refractive index measurements [PDF]

, 2006
The optical forces in optical tweezers can be robustly modeled over a broad range of parameters using generalsed Lorenz-Mie theory. We describe the procedure, and show how the combination of experimental measurement of properties of the trap coupled with
Heckenberg, N. R., Knoener, G., Nieminen, T. A., Parkin, S., Rubinsztein-Dunlop, H.   +4 more
core   +1 more source

Optical Nanotweezers Based on All-Dielectric Resonant Structures

Advanced Devices & Instrumentation
Optical tweezers are a valuable tool for manipulating micro- and nano-objects due to their noncontact and nondestructive nature. These features render them highly valuable for applications such as biological detection and precision measurement.
Hongyang Xu, Xi Xie, Siwei Chen, Yanan Fu, Yuquan Zhang, Xiaocong Yuan, Changjun Min   +6 more
doaj   +1 more source

Holographic optical trapping

, 2005
Holographic optical tweezers use computer-generated holograms to create arbitrary three-dimensional configurations of single-beam optical traps useful for capturing, moving and transforming mesoscopic objects.
Allen, Alonzo, Arlt, Ashkin, Ashkin, Crocker, Curtis, Curtis, Dufresne, Dufresne, Gahagan, Garces-Chavez, Grier, Guo, He, He, Hughes, Jesacher, Jordan, Korda, Koss, Ladavac, Ladavac, Leach, Liesener, MacDonald, Meister, Melville, Mogensen, Neto, O'Neil, Polin, Reicherter, Reimann, Roichman, Sacks, Sasaki, Simpson, Sinclair, Soskin, Sundbeck   +40 more
core   +1 more source

Experimental investigation on optical vortex tweezers for microbubble trapping

Open Physics, 2018
In this paper, we investigated the microbubble trapping using optical vortex tweezers. It is shown that the microbubble can be trapped by the vortex optical tweezers, in which the trapping light beam is of vortex beam.
Zhou Xiaoming, Chen Ziyang, Liu Zetian, Pu Jixiong   +3 more
doaj   +1 more source

Optical tweezers

IEEJ Transactions on Sensors and Micromachines, 1996
Z J Ulanowski, Ian R Williams
openaire   +3 more sources

Optical trapping and manipulating with a transmissive and polarization-insensitive metalens

Nanophotonics
Trapping and manipulating micro-objects and achieving high-precision measurements of tiny forces and displacements are of paramount importance in both physical and biological research.
Yang Dongni, Zhang Jianchao, Zhang Pengshuai, Liang Haowen, Ma Jie, Li Juntao, Wang Xue-Hua   +6 more
doaj   +1 more source