Particle dynamics in optical lattices

We present a thorough experimental and theoretical study of micrometer-sized particle dynamics in optical lattices. The spatial parameters of the lattices are set by configuration of the interfering beams with computercontrolled spatial light modulator. The behaviour of particle confined in the interference pattern is monitored by fast CCD camera. Analyses of the particle trajectory and Brownian motion reveal force interaction between the particle and the lattice. We use polymer microspheres as the experimental objects. The experimental results are compared with the theoretical predictions based on the generalized Mie theory.

[1]  Petr Ja kl,et al.  Static optical sorting in a laser interference field , 2008 .

[2]  P. Zemánek,et al.  Optical trapping of nanoparticles and microparticles by a Gaussian standing wave. , 1999, Optics letters.

[3]  Jennifer E. Curtis,et al.  Dynamic holographic optical tweezers , 2002 .

[4]  P. Zemánek,et al.  Single-beam trapping in front of reflective surfaces. , 2001, Optics letters.

[5]  Pavel Zemánek,et al.  Simplified description of optical forces acting on a nanoparticle in the Gaussian standing wave. , 2002, Journal of the Optical Society of America. A, Optics, image science, and vision.

[6]  G. Volpe,et al.  Torque detection using Brownian fluctuations. , 2006, Physical review letters.

[7]  Kishan Dholakia,et al.  Optical levitation in a Bessel light beam , 2004 .

[8]  K. Svoboda,et al.  Biological applications of optical forces. , 1994, Annual review of biophysics and biomolecular structure.

[9]  Tomáš Čižmár,et al.  Optical conveyor belt for delivery of submicron objects , 2005 .

[10]  S. Chu,et al.  Observation of a single-beam gradient force optical trap for dielectric particles. , 1986, Optics letters.

[11]  E. Stelzer,et al.  Photonic force microscope calibration by thermal noise analysis , 1998 .

[12]  増原 宏.  Microchemistry : spectroscopy and chemistry in small domains : proceedings of the JRDC-KUL Joint International Symposium on "Spectroscopy and Chemistry in Small Domains", Brussels, Belgium, August 11-14, 1993 , 1994 .

[13]  Christoph F. Schmidt,et al.  Direct observation of kinesin stepping by optical trapping interferometry , 1993, Nature.

[14]  L. B. Lesem,et al.  The kinoform: a new wavefront reconstruction device , 1969 .

[15]  M W Berns,et al.  Micromanipulation of chromosomes in PTK2 cells using laser microsurgery (optical scalpel) in combination with laser-induced optical force (optical tweezers). , 1993, Experimental cell research.

[16]  W. Webb,et al.  Scanning-force microscope based on an optical trap. , 1993, Optics letters.