论文信息 - Optical conveyor belt for delivery of sub-micron objects

Optical conveyor belt for delivery of sub-micron objects

We demonstrate how the standing wave created from two counter-propagating non-diffracting (Bessel) beams can be used for confinement of sub-micron sized particles. At the same time we proved that changing the phase shift between these two beams can be efficiently used for precise delivery of sub-micron objects in unison. We succeeded in delivery of polystyrene particles of diameter 410 nm over a distance of 300 μm.

Tomáš Čižmár | Pavel Zemánek | Kishan Dholakia | Veneranda Garcéz-Chávez

[1] S. Hell,et al. Aberrations in confocal fluorescence microscopy induced by mismatches in refractive index , 1993 .

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

[3] M K Cheezum,et al. Quantitative comparison of algorithms for tracking single fluorescent particles. , 2001, Biophysical journal.

[4] Zdeněk Bouchal,et al. Non-diffractive Vector Bessel Beams , 1995 .

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

[6] Watt W. Webb,et al. Measurement of small forces using an optical trap , 1994 .

[7] A. Ashkin,et al. History of optical trapping and manipulation of small-neutral particle, atoms, and molecules , 2000, IEEE Journal of Selected Topics in Quantum Electronics.

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

[9] Pavel Zemanek,et al. Optical trapping in counter-propagating Bessel beams , 2004, SPIE Optics + Photonics.

[10] Miceli,et al. Diffraction-free beams. , 1987, Physical review letters.

[11] W Sibbett,et al. Creation and Manipulation of Three-Dimensional Optically Trapped Structures , 2002, Science.

[12] Steven M Block,et al. Resource Letter: LBOT-1: Laser-based optical tweezers. , 2003, American journal of physics.