Enhancing the upconversion efficiency of NaYF(4):Yb,Er microparticles for infrared vision applications

In this study, (NaYF(4):Yb,Er) microparticles dispersed in water and ethanol, were used to generate 540 nm visible light from 980 nm infrared light by means of a nonlinear stepwise two-photon process. IR-reflecting mirrors placed on four sides of the cuvette that contained the microparticles increas...

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Detalles Bibliográficos
Autores principales: Khosh Abady, Keyvan, Dankhar, Dinesh, Krishnamoorthi, Arjun, Rentzepis, Peter M.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2023
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10209170/
https://www.ncbi.nlm.nih.gov/pubmed/37225762
http://dx.doi.org/10.1038/s41598-023-35164-x
Descripción
Sumario:In this study, (NaYF(4):Yb,Er) microparticles dispersed in water and ethanol, were used to generate 540 nm visible light from 980 nm infrared light by means of a nonlinear stepwise two-photon process. IR-reflecting mirrors placed on four sides of the cuvette that contained the microparticles increased the intensity of the upconverted 540 nm light by a factor of three. We also designed and constructed microparticle-coated lenses that can be used as eyeglasses, making it possible to see rather intense infrared light images that are converted to visible.

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