Open AccessScanning 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) - optics , materials science , 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.