Sun, 27 Jul 2008 07:53:14 BST CiteULike: dchen's grier http://www.citeulike.org/user/dchen/tag/grier CiteULike.org en-gb Copyright © 2004-2008 citeulike.org http://www.citeulike.org/user/dchen/article/2883846 <i>Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol. 75, No. 1. (2007)</i><br /><br />Viscously damped particles driven past an evenly spaced array of potential energy wells or barriers may become kinetically locked in to the array, or else may escape from the array. The transition between locked-in and free-running states has been predicted to depend sensitively on the ratio between the particles' size and the separation between wells. This prediction is confirmed by measurements on monodisperse colloidal spheres driven through arrays of holographic optical traps. Colloidal transport through optical tweezer arrays Yael Roichman Victor Wong David Grier doi:10.1103/PhysRevE.75.011407 Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol. 75, No. 1. (2007) 2008-06-11T21:24:05-00:00 2007 Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) 75 1 APS 2007 colloids grier opticaltweezer pre technique http://www.citeulike.org/user/dchen/article/2880851 <i>Nature, Vol. 424, No. 6946. (17 July 2003), pp. 267-268.</i> Fluid dynamics: Vortex rings in a constant electric field David Grier doi:10.1038/424267b Nature, Vol. 424, No. 6946. (17 July 2003), pp. 267-268. 2008-06-10T19:55:44-00:00 2003 Nature 424 6946 267 268 charge cluster colloids control field grier nature http://www.citeulike.org/user/dchen/article/2873915 <i>Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol. 77, No. 5. (2008)</i><br /><br />We describe an efficient technique for measuring the effective interaction potential for pairs of colloidal particles. The particles to be tested are confined in an extended optical trap, also known as a line tweezer, that is projected with the holographic optical trapping technique. Their diffusion along the line reflects not only their intrinsic interactions with each other, but also the influence of the line's potential energy landscape and interparticle interactions mediated by scattered light. We demonstrate that measurements of the particles' trajectories at just two laser powers can be used to correct explicitly for optically induced forces and that statistically optimal analysis for optically induced forces yields autocalibrated measurements of the particles' intrinsic interactions with remarkably few statistically independent measurements of the particles' separation. Autocalibrated colloidal interaction measurements with extended optical traps Marco Polin Yohai Roichman David Grier doi:10.1103/PhysRevE.77.051401 Physical Review E (Statistical, Nonlinear, and Soft Matter Physics), Vol. 77, No. 5. (2008) 2008-06-08T20:06:58-00:00 2008 Physical Review E (Statistical, Nonlinear, and Soft Matter Physics) 77 5 APS 2008 colloids grier interaction opticaltweezer http://www.citeulike.org/user/dchen/article/2747059 <i>Review of Scientific Instruments, Vol. 69, No. 5. (1998), pp. 1974-1977.</i> Optical tweezer arrays and optical substrates created with diffractive optics Eric Dufresne David Grier Review of Scientific Instruments, Vol. 69, No. 5. (1998), pp. 1974-1977. 2008-05-02T20:52:54-00:00 1998 Review of Scientific Instruments 69 5 1974 1977 AIP grier opticaltweezer