dc.contributor | Universidade de São Paulo (USP) | |
dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-27T11:28:28Z | |
dc.date.accessioned | 2022-10-05T18:44:06Z | |
dc.date.available | 2014-05-27T11:28:28Z | |
dc.date.available | 2022-10-05T18:44:06Z | |
dc.date.created | 2014-05-27T11:28:28Z | |
dc.date.issued | 2013-02-19 | |
dc.identifier | Journal of Alloys and Compounds. | |
dc.identifier | 0925-8388 | |
dc.identifier | http://hdl.handle.net/11449/74610 | |
dc.identifier | 10.1016/j.jallcom.2013.01.133 | |
dc.identifier | WOS:000328188800078 | |
dc.identifier | 2-s2.0-84873727507 | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/3923562 | |
dc.description.abstract | Fabrication and optical characterization of Tm3+/Yb3+ codoped PbO-GeO2 (PGO) pedestal-type waveguides are investigated in this work. It is important to mention that, to the best of authors' knowledge, the use of PGO pedestal-type waveguide has not been studied before. PGO thin films codoped with Tm3+ and Yb3+ were obtained through RF magnetron sputtering technique. The pedestal profile was obtained using conventional optical lithography procedures, followed by plasma etching and sputtering deposition. The profile of Tm3+/Yb3+ codoped PGO waveguides was observed by means of Scanning Electron Microscopy (SEM) measurements. Also the infrared and infrared-to-visible frequency upconversion luminescences of Tm3+ ions were measured exciting the samples with a cw 980 nm diode laser. Propagation losses around 11 dB/cm and 9 dB/cm were obtained at 630 and 1050 nm, respectively, for waveguides in the 20-100 μm width range. Single-mode propagation was observed for waveguides width up to 12 μm and 7 μm, at 1050 nm and 630 nm, respectively; larger waveguides width provided multi-mode propagation. The present results corroborate the possibility of using Tm3+/Yb3+ codoped PGO thin films as active waveguide for photonic applications. © 2013 Elsevier B.V. All rights reserved. | |
dc.language | eng | |
dc.relation | Journal of Alloys and Compounds | |
dc.relation | 3.779 | |
dc.relation | 1,020 | |
dc.rights | Acesso restrito | |
dc.source | Scopus | |
dc.subject | Germanate | |
dc.subject | Photonic | |
dc.subject | Rare-earth ions | |
dc.subject | Sputtering | |
dc.subject | Thin film | |
dc.subject | Waveguide | |
dc.title | Production and characterization of Tm3+/Yb3+ codoped waveguides based on PbO-GeO2 thin films | |
dc.type | Artigo | |