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Proceedings Paper

Mechanical effects of interference light field on dielectric microparticles
Author(s): Petr Jákl; Mojmír Šerý; Pavel Zemánek
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Paper Abstract

We demonstrate optical manipulation with micrometer-sized dielectric particles. Instead of well-known optical tweezers we use complex interference pattern (so-called optical landscape) to trap and confine polymer microspheres in maxima and minima of optical intensity. The optical pattern is created by interference of two or three beams, respectively, which results in interference fringes or hexagonal interference structure. Multiple beam setup uses spatial light modulator to divide incoming laser beam into several directions by diffraction on the phase grating. Small particles are trapped in maxima of intensity, while larger particles are attracted by neighbouring maxima and are confined in minima of intensity with their center.

Paper Details

Date Published: 20 November 2008
PDF: 6 pages
Proc. SPIE 7141, 16th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 714112 (20 November 2008); doi: 10.1117/12.822383
Show Author Affiliations
Petr Jákl, Institute of Scientific Instruments (Czech Republic)
Mojmír Šerý, Institute of Scientific Instruments (Czech Republic)
Pavel Zemánek, Institute of Scientific Instruments (Czech Republic)


Published in SPIE Proceedings Vol. 7141:
16th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics

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