Astudy On The Magnetic Control Tunable Characteristics Of The Localized Modes Of Quasiperiodic Structure Photonic Crystal With Nanoparticle Magnetic Fluid

Quasi-periodic structure is a typical aperiodic structure.According to the distribution of this structure,it is a specific and ordered structural configuration,the structural configuration has a certain arrangement.More parameters can be adjusted when the quasi-periodic structure is built,and the characteristics of periodic structure photonic crystal also can be found on the quasic-periodic structure photonic crystal.What's more,the photonic band gap of quasic-periodic photonic crystal is wider than the traditional one,and the refractive index of magnetic fluid has tunable features,it is connected with the thickness of magnetic fluid dielectric layer,the concentration of magnetic fluid and external environment.Cantor,Fibonacci,Thue-morse are the typical quasi-periodic.If the quasi-periodic structure photonic crystal is filled with the magnetic fluid,the photonic band gap and localized modes of quasi-periodic structure photonic crystal containing magnetic fluid can be controlled by changing the size and direction of magnetic field,ambient temperature and the thickness of the magnetic fluid dielectric layer.The magnetic control tunable characteristics of localized modes of quasic-periodic photonic crystal are studied by the transfer matrix.First,the tunable characteristics of localized modes of one-dimensional Fibonacci quasic-periodic structure containing magnetic fluid are studied.the physical model of one-dimensional Fibonacci quasiperiodic structure containing nanoparticle magnetic fluid photonic crystal is built.Then,the transmission spectrum of one-dimensional Fibonacci quasiperiodic structure containing nanoparticle magnetic fluid is calculated by transfer matrix method.Finally,the localized modes of magnetic control adjustable features are discussed.The results show that the wavelength of the local mode shifts to the long-wave direction with the increasing of refractive index of magnetic fluid.When the generation of one-dimensional Fibonacci quasiperiodic structure with nanoparticle magnetic fluid increased,the number of local mode increased as well,and the quality factor gets higher.Second,the magnetic control adjustable characteristics of localized modes of one-dimensional Thue-Morse quasiperiodic structure with nanoparticle magnetic fluid is studied.The physical model of one-dimensional Thue-Morse quasiperiodic structure with nanoparticle magnetic fluid photonic crystal is built.Then,the transmission spectrum of one-dimensional Thue-Morse quasiperiodic structure with nanoparticle magnetic fluid is calculated by transfer matrix method.Finally,the magnetic control adjustable characteristics of localized modes is discussed.The results show that the wavelength of the defect local modes shift to the long-wave direction with the increasing of refractive index of magnetic fluid;The wavelength drift variation increases as the level of the defect local mode at the different level decrease;The quality factor decreases with the increasing of the refractive index for the defect local modes at the same level.Finally,the magnetic control tunable characteristics of localized modes of One-dimensional Cantor quasicrystal structure containing nanoparticle magnetic fluid are studied.First,the physical model of One-dimensional Cantor quasicrystal structure containing nanoparticle magnetic fluid is built.Then,the transmissionspectrum of One-dimensional Cantor quasicrystals structure containing nanoparticle magnetic fluid is calculated by transfer matrix method.Finally,the magnetic control tunable characteristics of localized modes are discussed.The results show that the generation of One-dimensional Cantor quasicrystal structure containing nanoparticle magnetic fluid increased,the number of localized modes increased,the quality factor of localized modes increased as well,and the localized modes of previous generation are contained in the localized modes of next generation;the wavelength of localized modes shift to the long-wave direction when the refractive index of magnetic fluid increases with the decreasing of magnetic field intensity.