Microstructured fluorescence in liquid crystals with femtosecond laser excitation

被引：0

作者：

孟霞 ^{[1
]}

金萍 ^{[1
]}

葛士军 ^{[2
]}

刘娇 ^{[1
]}

李炳祥 ^{[1
]}

王磊 ^{[1
,2
,3
]}

陆延青 ^{[2
]}

机构：

[1] College of Electronic and Optical Engineering&College of Flexible Electronics (Future Technology),Nanjing University of Posts and Telecommunications

[2] National Laboratory of Solid State Microstructures,College of Engineering and Applied Sciences,Nanjing University

[3] State Key Laboratory of Millimeter Waves,Southeast University

来源：

Chinese Optics Letters | 2024年 / 22卷 / 03期

基金：

中国国家自然科学基金;

关键词：

D O I：

暂无

中图分类号：

TN249 [激光的应用]; O753.2 [];

学科分类号：

0702 ; 070205 ; 0703 ; 0803 ; 080401 ; 080501 ; 080901 ;

摘要：

This study investigated direct fluorescence generation from a nematic liquid crystal(NLC) NJU-LDn-4 under femtosecond laser excitation. The absorption, transmittance, excitation, and emission spectra of the NLC were assessed. The relationship between the femtosecond pump power and fluorescence intensity was analyzed, revealing a quadratic increase and indicating that two-photon absorption (2PA) is the primary fluorescence mechanism. The LC microstructure was designed using photoalignment technology, allowing the generated fluorescence to reflect the corresponding structure. This research can establish a foundation for tunable LC microstructured fluorescence, with potential applications in fluorescence microscopy and optoelectronics.

引用

页码：159 / 163

页数：5

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