Robust one-way modes in gyromagnetic photonic crystal waveguides with different interfaces

Jin-Xin Fu; Rong-Juan Liu; Zhi-Yuan Li
July 2010
Applied Physics Letters;7/26/2010, Vol. 97 Issue 4, p041112
Academic Journal
We experimentally realize a one-way waveguide made from a gyromagnetic photonic crystal (GPC) and a normal dielectric photonic crystal in their common photonic band gap. Due to the time reversal symmetry breaking of the GPC under a dc magnetic field, the edge modes exhibit a one-way property. We investigate the unidirectional propagation character originating from the chiral edge states at different widths of the waveguide. Both the forward modes, which are robust to various obstacles, and the backward modes show an obvious frequency shift for different waveguide widths. Numerical simulations by means of the transfer-matrix method and multiple scattering methods agree well with the experimental data.


Related Articles

  • Ultrasonic pulse compression with one-bit time reversal through multiple scattering. Derode, Arnaud; Fink, Mathias // Journal of Applied Physics;5/1/1999, Vol. 85 Issue 9, p6343 

    Presents information on a study which demonstrated the feasibility of one-bit time reversal even through high-order multiple scattering. Consequences of a reduction of the number of bits with which the scattered signal is digitized; Background level of the directivity patterns; Comparison...

  • Multiple Scattering and Accidental Coincidences in the J-PET Detector Simulated Using GATE Package. KOWALSKI, P.; WIŚLICKI, W.; RACZYŃSKI, L.; MOSKAL, P.; BEDNARSKI, T.; BIAŁAS, P.; CZERWIŃSKI, E.; GAJOS, A.; GRUNTOWSKI, A.; KAMIŃSKA, D.; KORCYL, G.; KOWAL, J.; KOZIK, T.; KUBICZ, E.; NIEDŹWIECKI, SZ.; PaŁka, M.; RUDY, Z.; SALABURA, P.; SHARMA, N. G.; SILARSKI, M. // Acta Physica Polonica, A.;2015, Vol. 127 Issue 5, p1505 

    Novel positron emission tomography system, based on plastic scintillators, is developed by the J-PET collaboration. In order to optimize geometrical configuration of built device, advanced computer simulations are performed. Detailed study is presented of background given by accidental...

  • Effect of density stratification on vortex merger. Dixit, Harish N.; Govindarajan, Rama // Physics of Fluids;Jan2013, Vol. 25 Issue 1, p016601 

    We study the effect of density stratification in the plane on the merging of two equal vortices. Direct numerical simulations are performed for a wide range of parameters. Boussinesq and non-Boussinesq effects are considered separately. With the Boussinesq approximation, moderate to high Prandtl...

  • Publisher's Note: 'Symmetry-breaking in cumulative measures of shapes of polymer models' [J. Chem. Phys. 133, 154113 (2010)]. Millett, Kenneth C.; Rawdon, Eric J.; Tran, Vy T.; Stasiak, Andrzej // Journal of Chemical Physics;10/28/2010, Vol. 133 Issue 16, p169902 

    No abstract available.

  • Influence of system size on the properties of a fluid adsorbed in a nanopore: Physical manifestations and methodological consequences. Puibasset, Joël; Kierlik, Edouard; Tarjus, Gilles // Journal of Chemical Physics;7/28/2014, Vol. 141 Issue 4, p1 

    Hysteresis and discontinuities in the isotherms of a fluid adsorbed in a nanopore in general hamper the determination of equilibrium thermodynamic properties, even in computer simulations. A way around this has been to consider both a reservoir of small size and a pore of small extent in order...

  • Flux tube train model for local turbulence simulation of toroidal plasmas. Watanabe, T.-H.; Sugama, H.; Ishizawa, A.; Nunami, M. // Physics of Plasmas;2015, Vol. 22 Issue 2, p1 

    A new simulation method for local turbulence in toroidal plasmas is developed by extending the conventional idea of the flux tube model. In the new approach, a train of flux tubes is employed, where flux tube simulation boxes are serially connected at each end along a field line so as to...

  • Symmetry breaking in linearly coupled Korteweg-de Vries systems. Espinosa-Cerón, A.; Malomed, B. A.; Fujioka, J.; Rodríguez, R. F. // Chaos;Sep2012, Vol. 22 Issue 3, p033145 

    We consider solitons in a system of linearly coupled Korteweg-de Vries (KdV) equations, which model two-layer settings in various physical media. We demonstrate that traveling symmetric solitons with identical components are stable at velocities lower than a certain threshold value. Above the...

  • T-matrix formulation of scattering by an obstacle near a planar sediment boundary and application to detection using iterative time reversal. Ying, Yingzi; Ma, Li // AIP Conference Proceedings;9/6/2010, Vol. 1272 Issue 1, p323 

    In this paper, the transition matrix (abbreviated to T-matrix) formulation for scattering is adapted to the case of an obstacle immersed in a fluid half-space and in proximity to a planar interface. The formulation indicates the multiple scattering effects between the obstacle and interface,...

  • Multiple levels of symmetry breaking. Talagrand, Michel // Probability Theory & Related Fields;2000, Vol. 117 Issue 4 

    Abstract. In the previous paper in this volume we have studied the p-spin interaction model just below the critical temperature, and we have rigorously proved several aspects of the physicist's prediction that this model exhibits "one level of symmetry breaking". In the present paper we show how...


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics