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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 35, Iss. 9 — May. 1, 2010
  • pp: 1449–1451

Modified optical properties in a samarium doped titania inverse opal

Wei Wang, Hongwei Song, Qiong Liu, Xue Bai, Yu Wang, and Biao Dong  »View Author Affiliations


Optics Letters, Vol. 35, Issue 9, pp. 1449-1451 (2010)
http://dx.doi.org/10.1364/OL.35.001449


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Abstract

The TiO 2 : Sm 3 + inverse opal has been prepared by a template-assisted method, and its modification on photoluminescent (PL) properties of Sm 3 + is studied. Transmittance spectra show a dip within the photonic bandgap, whose location shifts a little to red and then to blue with an increasing detection angle between the incident light and the surface normal; such an irregular shift is attributed to uneven shrinkage of lattices. Steady-state PL spectra indicate a spatial redistribution of emission lines. Decay kinetics demonstrate that the spontaneous emission rates of Sm 3 + ions in the inverse opal decrease to varied extent depending on the emission wavelength and detection angle. All the facts are examined to be consistent with the photonic bandgap effect.

© 2010 Optical Society of America

OCIS Codes
(260.3800) Physical optics : Luminescence
(160.3918) Materials : Metamaterials

ToC Category:
Physical Optics

History
Original Manuscript: February 1, 2010
Manuscript Accepted: March 10, 2010
Published: April 29, 2010

Citation
Wei Wang, Hongwei Song, Qiong Liu, Xue Bai, Yu Wang, and Biao Dong, "Modified optical properties in a samarium doped titania inverse opal," Opt. Lett. 35, 1449-1451 (2010)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-35-9-1449

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