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Volume 8, Issue 1 (International Journal of Optics and Photonics (IJOP) Vol 8, No 1, Winter-Spring 2014)
IJOP 2014, 8(1): 41-47 |
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Ghanaat Shoar M, Rafiee Dastjerdi S, Delfanazaric K. Spatial Resolution Enhancement in a 2D Photonic Crystal Based on Complex Square Lattice. IJOP 2014; 8 (1) :41-47
URL: http://ijop.ir/article-1-164-en.html
URL: http://ijop.ir/article-1-164-en.html
1- Shahid Beheshti University
2- University of Southampton
2- University of Southampton
Abstract: (7448 Views)
We study the focusing properties of a two dimensional complex square-lattice photonic crystal (PC) comprising air holes immersed in Ge medium. The finite difference time domain (FDTD) method is utilized to calculate the dispersion band diagram and to simulate the image formation incorporating the perfectly matched layer (PML) boundary condition. In contrast to the common square PCs with the same air filling factor, the frequency corresponding to the effective negative refraction occurs in the second photonic band and the spatial image resolution is improved.
Keywords: 2D photonic crystal, Integrated optics, Near-field imaging, Negative index materials, Sub-wavelength spatial resolution.
Type of Study: Research |
Subject:
General
Received: 2014/05/8 | Revised: 2015/02/24 | Accepted: 2014/07/17 | Published: 2014/10/24
Received: 2014/05/8 | Revised: 2015/02/24 | Accepted: 2014/07/17 | Published: 2014/10/24
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