Experimental Realization of a Reflections-Free Compact Delay Line Based on a Photonic Topological Insulator

Photonic topological insulator emulating quantum spin Hall effect is employed to demonstrate the first reflections-free topologically protected delay line. Large broadband time delays of the guided edge modes are measured, compared with narrow-band non-topological ones.

[1]  Zhifang Lin,et al.  Experimental realization of self-guiding unidirectional electromagnetic edge states. , 2011, Physical review letters.

[2]  Gennady Shvets,et al.  Guiding electromagnetic waves around sharp corners: topologically protected photonic transport in metawaveguides. , 2015, Physical review letters.

[3]  L. Molenkamp,et al.  Quantum Spin Hall Insulator State in HgTe Quantum Wells , 2007, Science.

[4]  Daniel M. Mittleman,et al.  Frequency-division multiplexing in the terahertz range using a leaky-wave antenna , 2015, Nature Photonics.

[5]  Zheng Wang,et al.  Observation of unidirectional backscattering-immune topological electromagnetic states , 2009, Nature.

[6]  M. Segev,et al.  Photonic Floquet topological insulators , 2012, Nature.

[7]  S. Raghu,et al.  Possible realization of directional optical waveguides in photonic crystals with broken time-reversal symmetry. , 2008, Physical review letters.

[8]  Zongfu Yu,et al.  Realizing effective magnetic field for photons by controlling the phase of dynamic modulation , 2012, Nature Photonics.

[9]  Wenjun Qiu,et al.  Broadband circulators based on directional coupling of one-way waveguides. , 2011, Optics Express.

[10]  D. W. van der Weide,et al.  Folded waveguide traveling-wave tube sources for terahertz radiation , 2003, IEEE Transactions on Plasma Science.

[11]  E. J. Mele,et al.  Quantum spin Hall effect in graphene. , 2004, Physical review letters.

[12]  M. Segev,et al.  PT-symmetry in honeycomb photonic lattices , 2011, 1103.3389.

[13]  Mohammad Hafezi,et al.  Robust optical delay lines with topological protection , 2011, 1102.3256.

[14]  J Fan,et al.  Topologically robust transport of photons in a synthetic gauge field. , 2014, Physical review letters.

[15]  R. Mong,et al.  Edge states and the bulk-boundary correspondence in Dirac Hamiltonians , 2010, 1010.2778.

[16]  Alexander Szameit,et al.  Photonic Topological Insulators , 2014, CLEO 2014.

[17]  M. Hafezi,et al.  Imaging topological edge states in silicon photonics , 2013, Nature Photonics.

[18]  F. Xia,et al.  Ultracompact optical buffers on a silicon chip , 2007 .

[19]  I. Carusotto,et al.  Artificial gauge field for photons in coupled cavity arrays , 2011, 1104.4071.

[20]  A. Genack,et al.  Fluctuations in photon local delay time and their relation to phase spectra in random media , 1998, cond-mat/9808237.

[21]  Gennady Shvets,et al.  Scattering-free edge states between heterogeneous photonic topological insulators , 2015, 1507.05256.

[22]  D. Hsieh,et al.  A topological Dirac insulator in a quantum spin Hall phase , 2008, Nature.

[23]  B Andrei Bernevig,et al.  Quantum spin Hall effect. , 2005, Physical review letters.

[24]  Gennady Shvets,et al.  Photonic topological insulators. , 2012, Nature materials.

[25]  P. Dumon,et al.  Silicon microring resonators , 2012 .

[26]  L. Sheng,et al.  Quantum spin-Hall effect and topologically invariant Chern numbers. , 2006, Physical review letters.

[27]  Michael A. Jensen,et al.  Mutual coupling in MIMO wireless systems: a rigorous network theory analysis , 2004, IEEE Transactions on Wireless Communications.

[28]  Zheng Wang,et al.  Optical circulators in two-dimensional magneto-optical photonic crystals. , 2005 .

[29]  M. Soljačić,et al.  Reflection-free one-way edge modes in a gyromagnetic photonic crystal. , 2007, Physical review letters.

[30]  Shanhui Fan,et al.  Channel Drop Tunneling through Localized States , 1998 .

[31]  F. D. M. Haldane,et al.  Analogs of quantum-Hall-effect edge states in photonic crystals , 2008 .

[32]  Jason Soric,et al.  Experimental Verification of Three-Dimensional Plasmonic Cloaking in Free-Space , 2012 .

[33]  J. Joannopoulos,et al.  Electromagnetic Bloch waves at the surface of a photonic crystal. , 1991, Physical review. B, Condensed matter.

[34]  D. Rainwater,et al.  Experimental verification of three-dimensional plasmonic cloaking in free-space , 2011, 1107.3740.

[35]  C. T. Chan,et al.  Experimental realization of photonic topological insulator in a uniaxial metacrystal waveguide. , 2014, Nature communications.

[36]  Baile Zhang,et al.  Broadband surface-wave transformation cloak , 2015, Proceedings of the National Academy of Sciences.