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논문 기본 정보

자료유형
학술저널
저자정보
Hong Wu (Nanjing University of Posts and Telecommunications) Feng Li (Nanjing Normal University)
저널정보
한국광학회 Current Optics and Photonics Current Optics and Photonics Vol.2 No.1
발행연도
2018.2
수록면
47 - 52 (6page)

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초록· 키워드

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We systematically investigated the negative-refraction effect for both TE and TM polarizations in annular photonic crystals. Since two polarization waves are excited in different bands, they result in different refractive angles, and so polarization beam splitters can be made of annular photonic crystals. It was found that, in comparison to normal square-lattice air-hole photonic crystals, annular photonic crystals have a much wider common frequency band between TE-1 and TM-2, which is quite beneficial to finding the overlap between the negative-refraction regions belonging to TE-1 and TM-2 respectively. Further analyses of equifrequency surfaces and the electric-field distribution of annular photonic crystals with different parameters have not only demonstrated how the filling factor of annular cells affects the formation of the common negative-refraction region between TE-1 and TM-2, but also revealed some ways to improve the performance of a polarization beam splitter based on the negative-refraction effect in an annular photonic crystal.

목차

I. INTRODUCTION
II. MODEL AND METHOD
III. THE FORMATION OF CNRR BETWEEN TE-1 AND TM-2 IN NORMAL PCs
IV. THE FORMATION OF SINGLE-BEAM CNRR BETWEEN TE-1 AND TM-2 IN APCs
V. SUMMARY
REFERENCES

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