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Proceedings Paper

Using optical tweezers and two-photon polymerization to assemble microspheres (Conference Presentation)
Author(s): Samira Chizari; Miles P. Lim; Amin Farzaneh; Lucas A. Shaw; Sydney Austin; Jonathan B. Hopkins

Paper Abstract

In this work, two optical microfabrication methods are combined in a single system to enable automated fabrication of ordered three-dimensional microgranular crystals. The holographic optical tweezers approach offers precise and simultaneous handling of numerous microparticles, while two-photon polymerization enables selective joining of microparticles in desired crystal arrangements. Microgranular crystals exhibit unique nonlinear dynamic behaviors and have applications such as photonic crystals, acoustic lenses, and in shock absorbing materials. This novel fabrication approach holds potential to enable the next generation of hierarchical architectured metamaterials that cannot be fabricated with existing techniques.

Paper Details

Date Published: 9 March 2020
Proc. SPIE 11271, Laser 3D Manufacturing VII, 1127109 (9 March 2020); doi: 10.1117/12.2545124
Show Author Affiliations
Samira Chizari, Univ. of California, Los Angeles (United States)
Miles P. Lim, Univ. of California, Los Angeles (United States)
Amin Farzaneh, Univ. of California, Los Angeles (United States)
Lucas A. Shaw, Univ. of California, Los Angeles (United States)
Sydney Austin, Univ. of California, Los Angeles (United States)
Jonathan B. Hopkins, Univ. of California, Los Angeles (United States)

Published in SPIE Proceedings Vol. 11271:
Laser 3D Manufacturing VII
Bo Gu; Hongqiang Chen; Henry Helvajian, Editor(s)

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