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Optical Tamm States in Dielectric Photonic Crystal Heterostructure |
| GUO Ji-Yong;SUN Yong;LI Hong-Qiang;ZHANG Ye-Wen;CHEN Hong |
| Pohl Institute of Solid State Physics, Tongji University, Shanghai 200092 |
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| Cite this article: |
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GUO Ji-Yong, SUN Yong, LI Hong-Qiang et al 2008 Chin. Phys. Lett. 25 2093-2096 |
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Abstract We investigate one-dimensional dielectric photonic crystal and optical Tamm modes formed by superposition of two band gaps and find that this kind of mode can be explained by the single negative materials tunnelling effect. A
finite-size dielectric photonic band gap can mimic one kind of effective single negative material and this property sensitively depends on the frequency location in stop-band regions and surface termination and so on. The effective impedance match and effective phase match give the precise position of the optical Tamm mode. Complete transparency via tunnelling is achieved by two opaque media and demonstrates the validity of our approach.
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| Keywords:
42.70.Qs
78.20.Ci
41.20.Jb
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Received: 26 December 2007
Published: 31 May 2008
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| PACS: |
42.70.Qs
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(Photonic bandgap materials)
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78.20.Ci
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(Optical constants (including refractive index, complex dielectric constant, absorption, reflection and transmission coefficients, emissivity))
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41.20.Jb
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(Electromagnetic wave propagation; radiowave propagation)
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