Enhancing the upconversion efficiency of NaYF:Yb,Er microparticles for infrared vision applications.

Sci Rep

Department of Electrical and Computer Engineering, Texas A&M University, College Station, TX, 77843, USA.

Published: May 2023

AI Article Synopsis

  • The study focuses on (NaYF:Yb,Er) microparticles that convert 980 nm infrared light into 540 nm visible light using a two-photon process.
  • Mirrors placed around the sample significantly enhance the output light intensity by three times.
  • The researchers created microparticle-coated lenses for eyeglasses, allowing users to view intense infrared light images transformed into visible light.

Article Abstract

In this study, (NaYF: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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Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10209170PMC
http://dx.doi.org/10.1038/s41598-023-35164-xDOI Listing

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