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journal article·2020-06-01Open access

Colorful light channel for femtosecond laser filamentation in nanoparticle colloidal solutions

Yuan Nie, Shuai Yuan, Yinsheng Du, Ming Yan, Jin Wang, Qingshan Zhang, Hui Xu, Min Li, Heping Zeng

AIP Advances· Volume 10· Issue 6
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Source abstract

Abstract

We investigate the femtosecond laser filamentation in nanoparticle colloidal solutions. Colloidal solutions of water doped with gold (Au), silver (Ag), copper (Cu), and calcium carbonate (CaCO3) nanospheres under different sizes and concentrations were experimentally studied. A cyan–red light path was visualized, and the generated supercontinuum spectra spanning from 400 nm to 950 nm were obtained. It was found that the energy losses and frequency-dependent scattering are necessary prerequisites for generating a colorful light path.
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Research context

Nanomaterials

OpenAlex topics: Laser-Ablation Synthesis of Nanoparticles · Laser-Matter Interactions and Applications · Laser-induced spectroscopy and plasma

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Shanghai Key Laboratory of Modern Optical System, Engineering Research Center of Optical Instrument and System, Ministry of Education, School of Optical-Electrical and Computer Engineering, University of Shanghai for Science and Technology 1 , Shanghai 200093, China

State Key Laboratory of Precision Spectroscopy, East China Normal University 2 , Shanghai 200062, China

Jinan Institute of Quantum Technology 3 , Jinan, Shandong 250101, China

Funding

Innovation Program of Shanghai Municipal Education Commission · National Key Research and Development Program of China · Foundation for Innovative Research Groups of the National Natural Science Foundation of China

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