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ZJUS-A
Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering)  2005, Vol. 6 Issue ( 5): 1-    DOI: 10.1631/jzus.2005.A0355
    
A completely open cavity realized with photonic crystal wedges
HE Sai-ling, RUAN Zhi-chao
Centre for Optical and Electromagnetic Research, Joint Research Centre of Photonics of the Royal Institute of Technology(Sweden) and Zhejiang University, Zhejiang University, Hangzhou 310027, China; Division of Electromagnetic Theory, Alfven Laboratory, Royal Institute of Technology, S-100 44, Stockholm, Sweden
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Abstract  A completely open cavity, which is formed by three 60-degree wedges of a photonic crystal with negative effective index, is introduced. Such a realizable design for a completely open cavity (i.e., without any reflective wall in the radial direction) is the first of its kind ever been reported. Due to the negative effective refraction index of the photonic crystal and the high transmission at the photonic crystal/air interfaces, a closed path with zero optical path is formed for the resonance. The present open cavity is very suitable for use as a biosens as it has large air wedges into which a liquid measurand can flow easily.

Key words： Optical and Electromagnetic Electromagnetic Completely open cavity      Photonic crystal      Negative refraction index      Left-handed      Resonator     
Received: 09 March 2005     
CLC:  O441  
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Cite this article:

HE Sai-ling, RUAN Zhi-chao. A completely open cavity realized with photonic crystal wedges. Journal of Zhejiang University-SCIENCE A (Applied Physics & Engineering), 2005, 6( 5): 1-.

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http://www.zjujournals.com/xueshu/zjus-a/10.1631/jzus.2005.A0355     OR     http://www.zjujournals.com/xueshu/zjus-a/Y2005/V6/I 5/1

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