Scanning two-photon continuous flow lithography for synthesis of high-resolution 3D microparticles | Zendy

Lucas A. Shaw | Zendy; Samira Chizari | Zendy; Maxim Shusteff | Zendy; Hamed Naghsh-Nilchi | Zendy; Dino Di Carlo | Zendy; Jonathan B. Hopkins | Zendy

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Scanning two-photon continuous flow lithography for synthesis of high-resolution 3D microparticles

Author(s) -

Lucas A. Shaw,

Samira Chizari,

Maxim Shusteff,

Hamed Naghsh-Nilchi,

Dino Di Carlo,

Jonathan B. Hopkins

Publication year - 2018

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.26.013543

Subject(s) - materials science , optics , synchronizing , fabrication , microfluidics , galvanometer , lithography , nanotechnology , laser , optoelectronics , physics , computer science , medicine , telecommunications , alternative medicine , pathology , transmission (telecommunications)

Demand continues to rise for custom-fabricated and engineered colloidal microparticles across a breadth of application areas. This paper demonstrates an improvement in the fabrication rate of high-resolution 3D colloidal particles by using two-photon scanning lithography within a microfluidic channel. To accomplish this, we present (1) an experimental setup that supports fast, 3D scanning by synchronizing a galvanometer, piezoelectric stage, and an acousto-optic switch, and (2) a new technique for modifying the laser's scan path to compensate for the relative motion of the rapidly-flowing photopolymer medium. The result is an instrument that allows for rapid conveyor-belt-like fabrication of colloidal objects with arbitrary 3D shapes and micron-resolution features.

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