Coherence-based axial point-spread function engineering for two-photon excited polymerization

被引：0
|
作者：
Dobner, Sven [1 ]
Hoehl, Martin [1 ]
Luepken, Niklas M. [1 ]
Fallnich, Carsten [1 ]
机构：
[1] Univ Munster, Inst Appl Phys, D-48149 Munster, Germany
来源：
APPLIED PHYSICS B-LASERS AND OPTICS | 2014年 / 116卷 / 04期
关键词：
NM RESOLUTION; FLUORESCENCE; EXCITATION; PHOTOPOLYMERIZATION; FABRICATION;
D O I：
10.1007/s00340-014-5763-8
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We show in proof-of-principle experiments an axial resolution improvement in two-photon-excited fluorescence and polymerization enabled by the short coherence length of two counter-propagating ultrashort laser pulses. The interference of these pulses generate a spatial interference fringe pattern, whose width scales inversely to the spectral bandwidth and is therefore considerably shorter than the effective focal length of a laser beam conventionally focused from only one side.
引用
收藏
页码：793 / 798
页数：6
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