Properties of mirror symmetrical 1-D photonic crystals with an imaginary part of dielectric constant defect
-
摘要: 为了研究关于复介电常量缺陷层镜像对称的1维光子晶体的带隙结构和光传输特性,利用传输矩阵法,讨论了缺陷层的复介电常量的虚部为负值且光学厚度为λ0/2的情形对传输特性的影响。结果表明,当在光子晶体加入复介电常量的缺陷层后,在靠近光子带隙边缘,出现了较强的透射峰增益;随着缺陷层复介电常量的实部和虚部的增加,透射增益先增加后减少,中间存在一极值点,但缺陷膜的位置和高度不受复介电常量的实部和虚部的影响。这一结果为光子晶体同时实现超窄带滤波器和光放大微器件提供了理论基础。Abstract: By means of optical transfer maxtrix,the band function and the optical transmission properties of mirror symmetrical photonic crystals with an imaginary part of dielectric constant defect were studied,especially in the case of negation imaginary part and the λ0/2 optical thickness of the defect.The investigation results show that a large transmittance gain appears at the photonic band edges if an imaginary part of dielectric constant defect is added in the photonic crystals.With the increasing of the imaginary and the real part of defect's dielectric constant,the transmittance gain is increasing firstly then decreasing and in the middle the transmittance gain apex appears.However,the place and altitude of the defect film are invariable.The conclusion is useful for narrow band filter and optical amplification device synchronously.
-
-
[1] YABLONOVITCH E.Inhibited spontaneous emission in solid-statephysics and electronics[J].Phys Rev Lett,1987,5(20):2059-2061.
[2] JOHN S.Strong localities of photons in certain disordered dielectric super lattices[J].Phys Rev Lett,1987,58(23):2486-2489.
[3] PANTER O,LEER K,SCHERER A,et al.Two-dimensional photonic band-gap defect mode laser[J].Science,1999,284(5421):1819-1821.
[4] BENISTYH,WEISBUCH C,OLIVIER S,et al.Low-loss photonic-crystal and monolithic InP integration:bands,bend,lasers,filters[J].SPIE,2004,5360:119-128.
[5] CHOW E,LIU S Y,JOHNSON S G,et al.Three-dimensional control of light in a two-dimensional photonic crystal slab[J].Nature,2000,407(6807):983-986.
[6] YANIKM F,FAN S.All-optical trsnssitor action with bistable switching in a photonic crystal cross-waveguide geometry[J].Opt Lett,2003,28(24):2506-2508.
[7] PAN Y Zh,ZHANG J,HU G J,et al.Photonic crystal fiber and laster[J].Laser Technology,2004,28(1):48-51(in Chinese).
[8] XIE Y M,LIU Zh D,WANG H Q.Local defect modes in photonic crystals with negative refractive index structural defects[J].Laser Technology,2006,30(2):195-197(in Chinese).
[9] DU G Q,LIU N H.Optical transmission spectra of one-dimensionalphotonic crystals with a mirror symmetry[J].Acta Physica Sinica,2004,53(4)1095-1098(in Chinese).
[10] TANG J F,GU P F.Optics and technology of thin films[M].Beijing:China Machine Press,1987:31-41(in Chinese).
计量
- 文章访问数: 1
- HTML全文浏览量: 0
- PDF下载量: 3
下载: