Efficient 1535 nm light emission from an all-Si-based optical micro-cavity containing Er3+ and Yb3+ ions


Autoria(s): Gallo, I. B.; Braud, A.; Zanatta, Antonio Ricardo
Contribuinte(s)

UNIVERSIDADE DE SÃO PAULO

Data(s)

04/06/2014

04/06/2014

01/11/2013

Resumo

This work reports on the construction and spectroscopic analyses of optical micro-cavities (OMCs) that efficiently emit at ~1535 nm. The emission wavelength matches the third transmission window of commercial optical fibers and the OMCs were entirely based on silicon. The sputtering deposition method was adopted in the preparation of the OMCs, which comprised two Bragg reflectors and one spacer layer made of either Er- or ErYb-doped amorphous silicon nitride. The luminescence signal extracted from the OMCs originated from the 4I13/2→4I15/2 transition (due to Er3+ ions) and its intensity showed to be highly dependent on the presence of Yb3+ ions.According to the results, the Er3+-related light emission was improved by a factor of 48 when combined with Yb3+ ions and inserted in the spacer layer of the OMC. The results also showed the effectiveness of the present experimental approach in producing Si-based light-emitting structures in which the main characteristics are: (a) compatibility with the actual microelectronics industry, (b) the deposition of optical quality layers with accurate composition control, and (c) no need of uncommon elements-compounds nor extensive thermal treatments. Along with the fundamental characteristics of the OMCs, this work also discusses the impact of the Er3+-Yb3+ ion interaction on the emission intensity as well as the potential of the present findings.

CAPES / COFECUB

CNPq

FAPESP

Identificador

Optics Express, Washington, DC: Optical Society of America - OSA, v. 21, n. 23, p. 28394-28402, Nov. 2013

1094-4087

http://www.producao.usp.br/handle/BDPI/45252

10.1364/OE.21.028394

Idioma(s)

eng

Publicador

Optical Society of America - OSA

Washington, DC

Relação

Optics Express

Direitos

openAccess

Copyright Optical Society of America

Palavras-Chave #Microcavities #Rare-earth-doped materials #FILMES FINOS #LUMINESCÊNCIA
Tipo

article

original article

publishedVersion