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Optics Express

Optics Express

  • Editor: C. Martijn de Sterke
  • Vol. 15, Iss. 5 — Mar. 5, 2007
  • pp: 2047–2054

Periodic structures consisting of germanium nanoparticles in buried channel waveguides

Hiroaki Nishiyama, Isamu Miyamoto, Yoshinori Hirata, and Junji Nishii  »View Author Affiliations

Optics Express, Vol. 15, Issue 5, pp. 2047-2054 (2007)

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Periodic structures consisting of Ge nanoparticles were formed in buried channel waveguides. Such periodic structures were created in GeO2-B2O3-SiO2 thin glass films by the combination of exposure to interference patterns of ultraviolet laser light and thermally induced phase changes of the glasses. The periodic structures in the channels served as the Bragg gratings with high diffraction efficiencies in the optical communication wavelength. Transmission spectra measurements show the depths and positions of the diffraction peaks as 37.77 dB at 1536.2 nm and 38.72 dB at 1537.6 nm, respectively, for TE-like and TM-like modes. The diffraction efficiencies remain unchanged even after further annealing at temperatures as high as 500°C.

© 2007 Optical Society of America

OCIS Codes
(160.2750) Materials : Glass and other amorphous materials
(160.2900) Materials : Optical storage materials
(220.4610) Optical design and fabrication : Optical fabrication
(230.1950) Optical devices : Diffraction gratings

ToC Category:
Diffraction and Gratings

Original Manuscript: January 2, 2007
Revised Manuscript: February 7, 2007
Manuscript Accepted: February 12, 2007
Published: March 5, 2007

Hiroaki Nishiyama, Isamu Miyamoto, Yoshinori Hirata, and Junji Nishii, "Periodic structures consisting of germanium nanoparticles in buried channel waveguides," Opt. Express 15, 2047-2054 (2007)

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