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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 20, Iss. 19 — Sep. 10, 2012
  • pp: 21214–21222

High quality factor 1-D Er3+-activated dielectric microcavity fabricated by RF-sputtering

Sreeramulu Valligatla, Alessandro Chiasera, Stefano Varas, Nicola Bazzanella, D. Narayana Rao, Giancarlo C. Righini, and Maurizio Ferrari  »View Author Affiliations

Optics Express, Vol. 20, Issue 19, pp. 21214-21222 (2012)

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Rare earth-activated 1-D photonic crystals were fabricated by RF-sputtering technique. The cavity is constituted by an Er3+-doped SiO2 active layer inserted between two Bragg reflectors consisting of ten pairs of SiO2/TiO2 layers. Scanning electron microscopy is employed to put in evidence the quality of the sample, the homogeneities of the layers thickness and the good adhesion among them. Near infrared transmittance and variable angle reflectance spectra confirm the presence of a stop band from 1500 nm to 2000 nm with a cavity resonance centered at 1749 nm at 0° and a quality factor of 890. The influence of the cavity on the 4I13/24I15/2 emission band of Er3+ ion is also demonstrated.

© 2012 OSA

OCIS Codes
(160.4760) Materials : Optical properties
(160.5690) Materials : Rare-earth-doped materials
(250.5230) Optoelectronics : Photoluminescence
(310.1860) Thin films : Deposition and fabrication
(140.3945) Lasers and laser optics : Microcavities
(050.5298) Diffraction and gratings : Photonic crystals

ToC Category:
Photonic Crystals

Original Manuscript: July 17, 2012
Revised Manuscript: August 7, 2012
Manuscript Accepted: August 9, 2012
Published: August 31, 2012

Sreeramulu Valligatla, Alessandro Chiasera, Stefano Varas, Nicola Bazzanella, D. Narayana Rao, Giancarlo C. Righini, and Maurizio Ferrari, "High quality factor 1-D Er3+-activated dielectric microcavity fabricated by RF-sputtering," Opt. Express 20, 21214-21222 (2012)

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  1. A. Chiappini, A. Chiasera, S. Berneschi, C. Armellini, A. Carpentiero, M. Mazzola, E. Moser, S. Varas, G. C. Righini, and M. Ferrari, “Sol-gel-derived photonic structures: fabrication, assessment, and application,” J. Sol-Gel Sci. Technol.60(3), 408–425 (2011). [CrossRef]
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