Open AccessHolographic optical assembly and photopolymerized joining of planar microspheres
Author(s) -
Lucas A. Shaw,
Samira Chizari,
Robert M. Panas,
Maxim Shusteff,
Christopher M. Spadaccini,
Jonathan B. Hopkins
Publication year - 2016
Publication title -
optics letters/optics index
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.524
H-Index - 272
eISSN - 1071-2763
pISSN - 0146-9592
DOI - 10.1364/ol.41.003571
Subject(s) - photopolymer , holography , materials science , optics , planar , optical tweezers , fabrication , substrate (aquarium) , microsphere , process (computing) , glass microsphere , polymer , computer science , physics , computer graphics (images) , composite material , medicine , oceanography , alternative medicine , engineering , pathology , chemical engineering , polymerization , operating system , geology
The aim of this research is to demonstrate a holographically driven photopolymerization process for joining colloidal particles to create planar microstructures fixed to a substrate, which can be monitored with real-time measurement. Holographic optical tweezers (HOT) have been used to arrange arrays of microparticles prior to this work; here we introduce a new photopolymerization process for rapidly joining simultaneously handled microspheres in a plane. Additionally, we demonstrate a new process control technique for efficiently identifying when particles have been successfully joined by measuring a sufficient reduction in the particles' Brownian motion. This technique and our demonstrated joining approach enable HOT technology to take critical steps toward automated additive fabrication of microstructures.