Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
9566903 | Applied Surface Science | 2005 | 5 Pages |
Abstract
This paper deals with glass-based photonic structures, used to control and modify the optical and spectroscopic properties of rare earth ions. The spectroscopic assessment of sol-gel-derived planar waveguides and 1D photonic band gap structures is reported. The spectroscopic, optical, and structural properties of planar waveguides with (100 â x)SiO2-xHfO2-yErO1.5 with y = 0.3, 0.01; and x = 10, 20, 30, 40 have been investigated by photoluminescence and Raman spectroscopy. The radiative quantum efficiency of the 4I13/2 metastable state of Er3+ ions is between 84 and 88% depending on the Si/Hf molar ratio. The sol-gel-derived one-dimensional cavity was realized by a Eu3+-activated dielectric layer placed between distributed Bragg reflectors (DBRs).
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Authors
Luca Zampedri, Cristiana Tosello, Hervé Portales, Maurizio Montagna, Maurizio Mattarelli, Andrea Chiappini, Giancarlo C. Righini, Stefano Pelli, Gualtiero Nunzi Conti, Maurizio Martino, Sabine Portal, Ana C. Marques, Rui M. Almeida, Yoann Jestin,