Influence of weak reflections from dielectric interfaces on properties of optical trap

Mojmir Sery; Petr Jakl; Jan Jezek; Alexandr Jonas; Miroslav Liska; Pavel Zemanek

doi:10.1117/12.498651

8 July 2003 Influence of weak reflections from dielectric interfaces on properties of optical trap

Mojmir Sery, Petr Jakl, Jan Jezek, Alexandr Jonas, Miroslav Liska, Pavel Zemanek

Proceedings Volume 5036, Photonics, Devices, and Systems II; (2003) https://doi.org/10.1117/12.498651
Event: Photonics, Devices, and Systems II, 2002, Prague, Czech Republic

Abstract

It is studied theoretically and experimentally how a wave reflected from the surface influences the distance of the trapped sphere from the beam waist. The reflected wave interferes with the incident one and they create a standing wave component in the final axial intensity distribution. This component modulates the trapping potential and creates several equilibrium positions for the trapped sphere. When the beam waist approaches the surface, the potential profiles changes and causes jumps of the trapped objects to deeper potential well. We proved that these unwanted jumps of the trapped objects between the neighboring equilibrium positions can be eliminated by proper size of the sphere.

Citation Download Citation

Mojmir Sery, Petr Jakl, Jan Jezek, Alexandr Jonas, Miroslav Liska, and Pavel Zemanek "Influence of weak reflections from dielectric interfaces on properties of optical trap", Proc. SPIE 5036, Photonics, Devices, and Systems II, (8 July 2003); https://doi.org/10.1117/12.498651

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