Laser forward transfer using structured light | Zendy

R.C.Y. Auyeung | Zendy; Heungsoo Kim | Zendy; Scott A. Mathews | Zendy; Alberto Piqué | Zendy

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Laser forward transfer using structured light

Author(s) -

R.C.Y. Auyeung,

Heungsoo Kim,

Scott A. Mathews,

Alberto Piqué

Publication year - 2015

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.23.000422

Subject(s) - optics , laser , digital micromirror device , materials science , spatial light modulator , checkerboard , fluence , physics , geometry , mathematics

A digital micromirror device (DMD) is used to spatially structure a 532 nm laser beam to print features spatially congruent to the laser spot in a laser-induced forward transfer (LIFT) process known as laser decal transfer (LDT). The DMD is a binary (on/off) spatial light modulator and its resolution, half-toning and beam shaping properties are studied using LDT of silver nanopaste layers. Edge-enhanced "checkerboard" beam profiles led to a ~30% decrease in the laser transfer fluence threshold (compared to a reference "checkerboard" profile) for a 20-pixel bitmap pattern and its resulting 10-μm square feature.

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