Open AccessThird-harmonic generation imaging of three-dimensional microstructures fabricated by photopolymerization
Author(s) -
Puskal Kunwar,
Juha Toivonen,
Martti Kauranen,
Godofredo Bautista
Publication year - 2016
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.24.009353
Subject(s) - optics , photopolymer , materials science , second harmonic generation , polarization (electrochemistry) , microstructure , microscopy , optoelectronics , laser , physics , composite material , polymerization , chemistry , metallurgy , polymer
We demonstrate the capability of polarized third-harmonic generation (THG) for high contrast imaging of three-dimensional microstructures fabricated by photopolymerization. Using circular polarization of fundamental light, background-free optically-sectioned THG images were obtained from laser-written photopolymerized microstructures. The technique has great potential for simple and noninvasive characterization of photopolymerized devices, which typically show poor contrast in conventional light microscopy.