首页|Microstructured fluorescence in liquid crystals with femtosecond laser excitation
Microstructured fluorescence in liquid crystals with femtosecond laser excitation
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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 indi-cating 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 fortunable LC microstructured fluorescence,with potential applications in fluorescence microscopy and optoelectronics.
College of Electronic and Optical Engineering & College of Flexible Electronics[Future Technology],Nanjing University of Posts and Telecommunications,Nanjing 210023,China
National Laboratory of Solid State Microstructures,College of Engineering and Applied Sciences,Nanjing University,Nanjing 210093,China
State Key Laboratory of Millimeter Waves,Southeast University,Nanjing 210096,China
国家重点研发计划江苏省自然科学基金江苏省自然科学基金国家自然科学基金Frontier Leading Technology Basic Research Project of Jiangsu ProvincePostgraduate Research & Practice Innovation Program of Jiangsu Province
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