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Arrays of individually controllable optical tweezers based on 3D-printed microlens arrays

Schäffner, Dominik and Preuschoff, Tilman and Ristok, Simon and Brozio, Lukas and Schlosser, Malte and Giessen, Harald and Birkl, Gerhard (2020):
Arrays of individually controllable optical tweezers based on 3D-printed microlens arrays.
In: Optics Express, 28, (6), OSA Publishing, pp. 8640-8645, ISSN 1094-4087,
DOI: 10.25534/tuprints-00011569,
[Online-Edition: https://doi.org/10.1364/OE.386243],
Secondary publishing via sponsored Golden Open Access, [Article]

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Item Type: Article
Origin: Secondary publishing via sponsored Golden Open Access
Title: Arrays of individually controllable optical tweezers based on 3D-printed microlens arrays
Language: English
Abstract:

We present a novel platform of optical tweezers which combines rapid prototyping of user-definable microlens arrays with spatial light modulation (SLM) for dynamical control of each associated tweezer spot. Applying femtosecond direct laser writing, we manufacture a microlens array of 97 lenslets exhibiting quadratic and hexagonal packing and a transition region between the two. We use a digital micromirror device (DMD) to adapt the light field illuminating the individual lenslets and present a detailed characterization of the full optical system. In an unprecedented fashion, this novel platform combines the stability given by prefabricated solid optical elements, fast reengineering by rapid optical prototyping, DMD-based real-time control of each focal spot, and extensive scalability of the tweezer pattern. The accessible tweezer properties are adaptable within a wide range of parameters in a straightforward way.

Journal or Publication Title: Optics Express
Journal volume: 28
Number: 6
Publisher: OSA Publishing
Classification DDC: 500 Naturwissenschaften und Mathematik > 530 Physik
Divisions: 05 Department of Physics > Institute of Applied Physics
Date Deposited: 24 Mar 2020 07:06
Last Modified: 24 Mar 2020 07:06
DOI: 10.25534/tuprints-00011569
Official URL: https://doi.org/10.1364/OE.386243
Related URLs:
URN: urn:nbn:de:tuda-tuprints-115697
URI: https://tuprints.ulb.tu-darmstadt.de/id/eprint/11569
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