Fast Acoustic Light Sculpting for On-Demand Maskless Lithography.

ABSTRACT: Light interference is the primary enabler of a number of optical maskless techniques for the large-scale processing of materials at the nanoscale. However, methods controlling interference phenomena can be limited in speed, ease of implementation, or the selection of pattern designs. Here, an optofluidic system that employs acoustic standing waves in a liquid to produce complex interference patterns at sub-microsecond temporal resolution, faster than the pulse-to-pulse period of many commercial laser systems, is presented. By controlling the frequency of the acoustic waves and the motion of a translation stage, additive and subtractive direct-writing of tailored patterns over cm² areas with sub-wavelength uniformity in periodicity and scalable spatial resolution, down to the nan

SUBMITTER: Surdo S 

PROVIDER: S-EPMC6662050 | biostudies-literature | 2019 Jul

REPOSITORIES: biostudies-literature