Tuning of optical properties by atomic layer deposition

Y. Qin, R. Vogelgesang, M. Eßlinger, M. Knez

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

A combination of deposition strategies was applied in order to synthesize Au nanoparticle chains embedded in helical Al2O3 nanotubes ("nanopeapods"). Carbon nanocoils were grown by chemical vapour deposition and coated with Au by sputtering with a subsequent Al 2O3 coating by atomic layer deposition. Rayleigh instabilities were made use of in order to fragment the Au coating into nanoparticles with a sharp size distribution. The pitch of the nanocoils arising from three-dimensional periodical topography of the carbon nanocoil templates induced a regular spacing between the nanoparticles. The nanoparticle chains show a strong plasmonic resonance behaviour visible as clear polarization contrast at red wavelengths, which is absent in the blue upon excitation with a confocal laser scanning microscope. The fabricated nanopeapods are suggested promising candidates for highly efficient, ultrathin waveguides.

源语言英语
主期刊名Advanced Fabrication Technologies for Micro/Nano Optics and Photonics VI
DOI
出版状态已出版 - 2013
已对外发布
活动Advanced Fabrication Technologies for Micro/Nano Optics and Photonics VI - San Francisco, CA, 美国
期限: 5 2月 20136 2月 2013

出版系列

姓名Proceedings of SPIE - The International Society for Optical Engineering
8613
ISSN(印刷版)0277-786X

会议

会议Advanced Fabrication Technologies for Micro/Nano Optics and Photonics VI
国家/地区美国
San Francisco, CA
时期5/02/136/02/13

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