2017年11月
Fabrication of optical waveguides inside transparent silica xerogels containing PbS quantum dots using a femtosecond laser
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
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- 巻
- 123
- 号
- 12
- 開始ページ
- 723
- 終了ページ
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.1007/s00339-017-1349-8
- 出版者・発行元
- SPRINGER
The fabrication and photoluminescence properties of waveguide structures inside transparent silica xerogels containing PbS quantum dots (QDs) have been investigated. Stable dispersion of water-soluble PbS QDs, which emit in the wavelength region of 1.3 mu m, in silica xerogels was conducted by a sol-gel method using 3-aminopropyl-trimethoxysilane. It was found that both the photoluminescence intensity and the dispersion stability are highly sensitive to catalysts, reaction temperature and time, and annealing temperature. Continuous and straight waveguide structures with refractive-index change were obtained by choosing appropriate irradiation conditions. The fabricated waveguides led approximately 60% increase in the intensity of the photoluminescence generated from the PbS QDs.
- リンク情報
- ID情報
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- DOI : 10.1007/s00339-017-1349-8
- ISSN : 0947-8396
- eISSN : 1432-0630
- Web of Science ID : WOS:000414499300005