Energy transfer and frequency upconversion in Ybsup(3+)-Ersup(3+) doped PbO-GeOsub(2) glass containing silver nanoparticles

KASSAB, L.R.P.BOMFIM, F.A.MARTINELLI, J.R.WETTER, N.U.NETO, J.J.ARAUJO, CID B. de2014-07-152014-07-302014-07-152014-07-302009KASSAB, L.R.P.; BOMFIM, F.A.; MARTINELLI, J.R.; WETTER, N.U.; NETO, J.J.; ARAUJO, CID B. de. Energy transfer and frequency upconversion in Ybsup(3+)-Ersup(3+) doped PbO-GeOsub(2) glass containing silver nanoparticles. <b>Applied Physics B - Lasers and Optics</b>, v. 94, p. 239-242, 2009. DOI: <a href="https://dx.doi.org/10.1007/s00340-008-3249-2">10.1007/s00340-008-3249-2</a>. Disponível em: http://repositorio.ipen.br/handle/123456789/4897.0946-2171http://repositorio.ipen.br/handle/123456789/4897We report the infrared-to-visible frequency upconversion in Er3+–Yb3+-codoped PbO-GeO2 glass containing silver nanoparticles (NPs). The optical excitation is made with a laser at 980 nm in resonance with the 2F5/2→2F7/2 transition of Yb3+ ions. Intense emission bands centered at 525, 550, and 662 nm were observed corresponding to Er3+ transitions. The simultaneous influence of the Yb3+→Er3+ energy transfer and the contribution of the intensified local field effect due to the silver NPs give origin to the enhancement of the whole frequency upconversion spectra.239-242openAccessytterbiumerbiumdoped materialslead oxidesgermanium oxidesglasssilvernanostructuresenergy transferluminescenceEnergy transfer and frequency upconversion in Ybsup(3+)-Ersup(3+) doped PbO-GeOsub(2) glass containing silver nanoparticlesArtigo de periódico9410.1007/s00340-008-3249-2https://orcid.org/0000-0002-9379-9530