Open AccessIn situ and real time monitoring of two-photon polymerization using broadband coherent anti-Stokes Raman scattering microscopy
Author(s) -
Tommaso Baldacchini,
R. Zadoyan
Publication year - 2010
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.18.019219
Subject(s) - femtosecond , raman scattering , microscopy , materials science , optics , raman spectroscopy , polymerization , coherent anti stokes raman spectroscopy , optical microscope , broadband , scattering , laser , physics , scanning electron microscope , composite material , polymer
We demonstrate in situ and real time characterization of two-photon polymerization (TPP) by means of broadband coherent anti-Stokes Raman scattering (CARS) microscopy. The same experimental setup based on one femtosecond oscillator is used to perform both TPP and broadband CARS microscopy. We performed in situ imaging with chemical specificity of three-dimensional microstructures fabricated by TPP, and successfully followed the writing process in real time. Broadband CARS microscopy allowed discerning between polymerized and unpolymerized material. Imaging with good vibrational contrast is achieved without causing any damage to the microstructures or undesired polymerization within the sample.