Two-photon absorption cross section measurements of various two-photon initiators for ultrashort laser radiation applying the Z-scan technique

被引：63

作者：

Ajami, A. ^{[1
]}

Husinsky, W. ^{[1
]}

Liska, R. ^{[2
]}

Pucher, N. ^{[2
]}

机构：

[1] Vienna Univ Technol, Inst Appl Phys, A-1040 Vienna, Austria

[2] Vienna Univ Technol, Inst Appl Synthet Chem, A-1060 Vienna, Austria

来源：

JOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICS | 2010年 / 27卷 / 11期

基金：

奥地利科学基金会;

关键词：

FEMTOSECOND; REFRACTION; POLYMERS;

D O I：

10.1364/JOSAB.27.002290

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

In this paper, we describe the Z-scan measurements of the two-photon absorption (TPA) cross section of various two-photon initiators that are suitable for real three-dimensional structuring of photo-polymerizable formulation. The value of the TPA cross section for the initiator P3K was measured to be 256 GM as the maximum value among the synthesized initiators. Procedures for a precise Z-scan measurement including the measurement of Rayleigh length and beam waist radius are presented. The effect of the pulse width on the Z-scan signal is demonstrated. We also used a flow-cell geometry instead of a static cell in order to refresh the materials to avoid the decomposition of the molecules. This resulted in a more realistic TPA cross section which has been proven by suitable reference compounds. (C) 2010 Optical Society of America

引用

页码：2290 / 2297

页数：8

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