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Proceedings Paper

The negative refraction of the 2D triangular lattice of air hole in silicon
Author(s): Chaojun Wu; Jun Wu; Tingting Hong; Yanping Li; Ziyu Wang
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Paper Abstract

We study numerically the focusing effects when a Gaussian beam pass through a two-dimensional photonic crystal consisting of triangular structure of air holes. By using plane wave expansion (PWE) and finite difference time domain (FDTD) methods, we find the width of convergent beam is about 2μm. Meanwhile, the focusing effects also are influenced by the Gaussian half-width, the numbers of the layers and the incident angle. The structure can be used for light-coupling and near-field scan image application.

Paper Details

Date Published: 26 October 2009
PDF: 6 pages
Proc. SPIE 7516, Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration, 75160U (26 October 2009); doi: 10.1117/12.840586
Show Author Affiliations
Chaojun Wu, Peking Univ. (China)
Jun Wu, Peking Univ. (China)
Tingting Hong, Peking Univ. (China)
Yanping Li, Peking Univ. (China)
Ziyu Wang, Peking Univ. (China)

Published in SPIE Proceedings Vol. 7516:
Photonics and Optoelectronics Meetings (POEM) 2009: Optoelectronic Devices and Integration
Zishen Zhao; Ray T. Chen; Yong Chen; Jinzhong Yu; Junqiang Sun; Weiwei Dong, Editor(s)

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