Optical conveyor belt for delivery of submicron objects

T  Cizmar; V  Garces-Chavez; K  Dholakia; P  Zemanek

doi:10.1063/1.1915543

Optical conveyor belt for delivery of submicron objects

T Cizmar, V Garces-Chavez, K Dholakia, P Zemanek

Research output: Contribution to journal › Article › peer-review

Abstract

`We demonstrate an optical conveyor belt that provides trapping and subsequent precise delivery of several submicron particles over a distance of hundreds of micrometers. This tool is based on a standing wave (SW) created from two counter-propagating nondiffracting beams where the phase of one of the beams can be changed. Therefore, the whole structure of SW nodes and antinodes moves delivering confined micro-objects to specific regions in space. Based on the theoretical calculations, we confirm experimentally that certain sizes of polystyrene particles jump more easily between neighboring axial traps and the influence of the SW is much weaker for certain sizes of trapped object. Moreover, the measured ratios of longitudinal and lateral optical trap stiffnesses are generally an order of magnitude higher compared to the classical single beam optical trap. (c) 2005 American Institute of Physics.

Original language	English
Number of pages	3
Journal	Applied Physics Letters
Volume	86
DOIs	https://doi.org/10.1063/1.1915543
Publication status	Published - 25 Apr 2005

Keywords

GAUSSIAN STANDING-WAVE
FORCES
BEAM

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10.1063/1.1915543

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title = "Optical conveyor belt for delivery of submicron objects",

abstract = "`We demonstrate an optical conveyor belt that provides trapping and subsequent precise delivery of several submicron particles over a distance of hundreds of micrometers. This tool is based on a standing wave (SW) created from two counter-propagating nondiffracting beams where the phase of one of the beams can be changed. Therefore, the whole structure of SW nodes and antinodes moves delivering confined micro-objects to specific regions in space. Based on the theoretical calculations, we confirm experimentally that certain sizes of polystyrene particles jump more easily between neighboring axial traps and the influence of the SW is much weaker for certain sizes of trapped object. Moreover, the measured ratios of longitudinal and lateral optical trap stiffnesses are generally an order of magnitude higher compared to the classical single beam optical trap. (c) 2005 American Institute of Physics.",

keywords = "GAUSSIAN STANDING-WAVE, FORCES, BEAM",

author = "T Cizmar and V Garces-Chavez and K Dholakia and P Zemanek",

year = "2005",

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doi = "10.1063/1.1915543",

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T1 - Optical conveyor belt for delivery of submicron objects

AU - Cizmar, T

AU - Garces-Chavez, V

AU - Dholakia, K

AU - Zemanek, P

PY - 2005/4/25

Y1 - 2005/4/25

N2 - `We demonstrate an optical conveyor belt that provides trapping and subsequent precise delivery of several submicron particles over a distance of hundreds of micrometers. This tool is based on a standing wave (SW) created from two counter-propagating nondiffracting beams where the phase of one of the beams can be changed. Therefore, the whole structure of SW nodes and antinodes moves delivering confined micro-objects to specific regions in space. Based on the theoretical calculations, we confirm experimentally that certain sizes of polystyrene particles jump more easily between neighboring axial traps and the influence of the SW is much weaker for certain sizes of trapped object. Moreover, the measured ratios of longitudinal and lateral optical trap stiffnesses are generally an order of magnitude higher compared to the classical single beam optical trap. (c) 2005 American Institute of Physics.

AB - `We demonstrate an optical conveyor belt that provides trapping and subsequent precise delivery of several submicron particles over a distance of hundreds of micrometers. This tool is based on a standing wave (SW) created from two counter-propagating nondiffracting beams where the phase of one of the beams can be changed. Therefore, the whole structure of SW nodes and antinodes moves delivering confined micro-objects to specific regions in space. Based on the theoretical calculations, we confirm experimentally that certain sizes of polystyrene particles jump more easily between neighboring axial traps and the influence of the SW is much weaker for certain sizes of trapped object. Moreover, the measured ratios of longitudinal and lateral optical trap stiffnesses are generally an order of magnitude higher compared to the classical single beam optical trap. (c) 2005 American Institute of Physics.

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KW - FORCES

KW - BEAM

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M3 - Article

SN - 0003-6951

VL - 86

JO - Applied Physics Letters

JF - Applied Physics Letters

ER -

Optical conveyor belt for delivery of submicron objects

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Keywords

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