Characterization of Microstructures Fabricated by Two-Photon Polymerization Using Coherent Anti-Stokes Raman Scattering Microscopy

被引：50

作者：

Baldacchini, Tommaso ^{[1
]}

Zimmerley, Maxwell ^{[2
]}

Kuo, Chun-Hung ^{[1
]}

Potma, Eric O. ^{[2
]}

Zadoyan, Ruben ^{[1
]}

机构：

[1] Newport Corp, Technol & Applicat Ctr, Irvine, CA 92606 USA

[2] Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA

来源：

JOURNAL OF PHYSICAL CHEMISTRY B | 2009年 / 113卷 / 38期

关键词：

CRYSTALS; PHOTOPOLYMERIZATION; RESOLUTION;

D O I：

10.1021/jp9058998

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We demonstrate the possibility to image microstructures fabricated by two-photon polymerization (TPP) using coherent anti-Stokes Raman scattering (CARS) microscopy. The imaging contrast based on chemical selectivity attained by CARS microscopy is used to gather qualitative information on TPP. Upon the basis of detailed knowledge of the characteristic signatures of the photoresist Raman spectrum, quantitative relationships between laser writing conditions and polymer cross-linking are demonstrated. The increase in degree of polymer conversion as a function of laser average power follows a sigmoidal profile which is interpreted in terms of a simple model based on the polymerization mechanism of the photoresist.

引用

页码：12663 / 12668

页数：6

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