A silicon-on-insulator slab for topological valley transport

Abstract

Backscattering suppression in silicon-on-insulator (SOI) is one of the central issues to reduce energy loss and signal distortion, enabling for capability improvement of modern information processing systems. Valley physics provides an intriguing way for robust information transfer and unidirectional coupling in topological nanophotonics. Here we realize topological transport in a SOI valley photonic crystal slab. Localized Berry curvature near zone corners guarantees the existence of valley-dependent edge states below light cone, maintaining in-plane robustness and light confinement simultaneously. Topologically robust transport at telecommunication is observed along two sharp-bend interfaces in subwavelength scale, showing flat-top high transmission of ~10% bandwidth. Topological photonic routing is achieved in a bearded-stack interface, due to unidirectional excitation of valley-chirality-locked edge state from the phase vortex of a nanoscale microdisk. These findings show the prototype of robustly integrated devices, and open a new door towards the observation of non-trivial states even in non-Hermitian systems.

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References 54

1. 1.

   Caulfield HJ, Dolev S. Why future supercomputing requires optics. Nat. Photon. 2010;4:261-263.

   Not in our library10.1038/nphoton.2010.94 (opens in a new tab)

2. 2.

   Haldane F, Raghu S. Possible realization of directional optical waveguides in photonic crystals with broken time-reversal symmetry. Phys. Rev. Lett. 2008;100:013904.

   Not in our library10.1103/physrevlett.100.013904 (opens in a new tab)

3. 3.

   Wang Z, Chong Y, Joannopoulos J, Soljačić M. Reflection-free one-way edge modes in a gyromagnetic photonic crystal. Phys. Rev. Lett. 2008;100:013905.

   Not in our library10.1103/physrevlett.100.013905 (opens in a new tab)

4. 4.

   Lu L, Joannopoulos JD, Soljacic M. Topological photonics. Nat. Photon. 2014;8:821-829.

   Not in our library10.1038/nphoton.2014.248 (opens in a new tab)

5. 5.

   Khanikaev AB, Shvets G. Two-dimensional topological photonics. Nat. Photon. 2017;11:763-773.

   Not in our library10.1038/s41566-017-0048-5 (opens in a new tab)

6. 6.

   Ozawa, T. et al. Topological photonics. Preprint at http://arxiv.org/abs/1802.04173 (2018).

   Not in our library

7. 7.

   Wang Z, Chong Y, Joannopoulos JD, Soljacic M. Observation of unidirectional backscattering-immune topological electromagnetic states. Nature. 2009;461:772-775.

   Not in our library10.1038/nature08293 (opens in a new tab)

8. 8.

   Poo Y, Wu Rx, Lin Z, Yang Y, Chan CT. Experimental realization of self-guiding unidirectional electromagnetic edge states. Phys. Rev. Lett. 2011;106:093903.

   Not in our library10.1103/physrevlett.106.093903 (opens in a new tab)

9. 9.

   Fang K, Yu Z, Fan S. Realizing effective magnetic field for photons by controlling the phase of dynamic modulation. Nat. Photon. 2012;6:782-787.

   Not in our library10.1038/nphoton.2012.236 (opens in a new tab)

10. 10.

    Bahari B, et al. Nonreciprocal lasing in topological cavities of arbitrary geometries. Science. 2017;358:636-640.

    Not in our library10.1126/science.aao4551 (opens in a new tab)

11. 11.

    Chen, W.-J. et al. Observation of backscattering-immune chiral electromagnetic modes without time reversal breaking. Phys. Rev. Lett. 107, 023901 (2011).

    Not in our library10.1103/physrevlett.107.023901 (opens in a new tab)

12. 12.

    Rechtsman MC, et al. Photonic Floquet topological insulators. Nature. 2013;496:196-200.

    Not in our library10.1038/nature12066 (opens in a new tab)

13. 13.

    Lu L, et al. Experimental observation of Weyl points. Science. 2015;349:622-624.

    Not in our library10.1126/science.aaa9273 (opens in a new tab)

14. 14.

    Khanikaev AB, et al. Photonic topological insulators. Nat. Mater. 2012;12:233-239.

    Not in our library10.1038/nmat3520 (opens in a new tab)

15. 15.

    Chen WJ, et al. Experimental realization of photonic topological insulator in a uniaxial metacrystal waveguide. Nat. Commun. 2014;5:5782.

    Not in our library10.1038/ncomms6782 (opens in a new tab)

16. 16.

    Cheng X, et al. Robust reconfigurable electromagnetic pathways within a photonic topological insulator. Nat. Mater. 2016;15:542-548.

    Not in our library10.1038/nmat4573 (opens in a new tab)

17. 17.

    Ni X, et al. Spin- and valley-polarized one-way Klein tunneling in photonic topological insulators. Sci. Adv. 2018;4:eaap8802.

    Not in our library10.1126/sciadv.aap8802 (opens in a new tab)

18. 18.

    Hafezi M, Mittal S, Fan J, Migdall A, Taylor JM. Imaging topological edge states in silicon photonics. Nat. Photon. 2013;7:1001-1005.

    Not in our library10.1038/nphoton.2013.274 (opens in a new tab)

19. 19.

    Harari G, et al. Topological insulator laser: theory. Science. 2018;359:eaar4003.

    Not in our library10.1126/science.aar4003 (opens in a new tab)

20. 20.

    Bandres MA, et al. Topological insulator laser: experiments. Science. 2018;359:eaar4005.

    Not in our library10.1126/science.aar4005 (opens in a new tab)

21. 21.

    Wu LH, Hu X. Scheme for achieving a topological photonic crystal by using dielectric material. Phys. Rev. Lett. 2015;114:223901.

    Not in our library10.1103/physrevlett.114.223901 (opens in a new tab)

22. 22.

    He C, et al. Acoustic topological insulator and robust one-way sound transport. Nat. Phys. 2016;12:1124-1129.

    Not in our library10.1038/nphys3867 (opens in a new tab)

23. 23.

    Yang Y, et al. Visualization of a unidirectional electromagnetic waveguide using topological photonic crystals made of dielectric materials. Phys. Rev. Lett. 2018;120:217401.

    Not in our library10.1103/physrevlett.120.217401 (opens in a new tab)

24. 24.

    Barik S, et al. A topological quantum optics interface. Science. 2018;359:666-668.

    Not in our library10.1126/science.aaq0327 (opens in a new tab)

25. 25.
    Far-field probing of leaky topological states in all-dielectric metasurfaces · 2018

    Not checked
26. 26.

    Xiao D, Yao W, Niu Q. Valley-contrasting physics in graphene: magnetic moment and topological transport. Phys. Rev. Lett. 2007;99:236809.

    Not in our library10.1103/physrevlett.99.236809 (opens in a new tab)

27. 27.

    Xiao D, Liu GB, Feng W, Xu X, Yao W. Coupled spin and valley physics in monolayers of MoS2 and other group-VI dichalcogenides. Phys. Rev. Lett. 2012;108:196802.

    Not in our library10.1103/physrevlett.108.196802 (opens in a new tab)

28. 28.

    Xu X, Yao W, Xiao D, Heinz TF. Spin and pseudospins in layered transition metal dichalcogenides. Nat. Phys. 2014;10:343-350.

    Not in our library10.1038/nphys2942 (opens in a new tab)

29. 29.

    Mak KF, Shan J. Photonics and optoelectronics of 2D semiconductor transition metal dichalcogenides. Nat. Photon. 2016;10:216-226.

    Not in our library10.1038/nphoton.2015.282 (opens in a new tab)

30. 30.

    Ma T, Shvets G. All-Si valley-Hall photonic topological insulator. New J. Phys. 2016;18:025012.

    Not in our library10.1088/1367-2630/18/2/025012 (opens in a new tab)

31. 31.

    Dong JW, Chen XD, Zhu H, Wang Y, Zhang X. Valley photonic crystals for control of spin and topology. Nat. Mater. 2017;16:298-302.

    Not in our library10.1038/nmat4807 (opens in a new tab)

32. 32.

    Chen XD, Zhao FL, Chen M, Dong JW. Valley-contrasting physics in all-dielectric photonic crystals: Orbital angular momentum and topological propagation. Phys. Rev. B. 2017;96:020202.

    Not in our library10.1103/physrevb.96.020202 (opens in a new tab)

33. 33.

    Gao F, et al. Topologically protected refraction of robust kink states in valley photonic crystals. Nat. Phys. 2018;14:140-144.

    Not in our library10.1038/nphys4304 (opens in a new tab)

34. 34.
    Direct observation of valley-polarized topological edge states in designer surface plasmon crystals · 2017

    No notice
35. 35.

    Noh J, Huang S, Chen KP, Rechtsman MC. Observation of photonic topological valley hall edge states. Phys. Rev. Lett. 2018;120:063902.

    Not in our library10.1103/physrevlett.120.063902 (opens in a new tab)

36. 36.

    Kang Y, Ni X, Cheng X, Khanikaev AB, Genack AZ. Pseudo-spin–valley coupled edge states in a photonic topological insulator. Nat. Commun. 2018;9:3029.

    Not in our library10.1038/s41467-018-05408-w (opens in a new tab)

37. 37.

    Shalaev MI, Walasik W, Tsukernik A, Xu Y, Litchinitser NM. Robust topologically protected transport in photonic crystals at telecommunication wavelengths. Nat. Nanotech. 2019;14:31-34.

    Not in our library10.1038/s41565-018-0297-6 (opens in a new tab)

38. 38.

    Lu J, Qiu C, Ke M, Liu Z. Valley vortex states in sonic crystals. Phys. Rev. Lett. 2016;116:093901.

    Not in our library10.1103/physrevlett.116.093901 (opens in a new tab)

39. 39.

    Lu J, et al. Observation of topological valley transport of sound in sonic crystals. Nat. Phys. 2016;13:369-374.

    Not in our library10.1038/nphys3999 (opens in a new tab)

40. 40.

    Pal RK, Ruzzene M. Edge waves in plates with resonators: an elastic analogue of the quantum valley Hall effect. New J. Phys. 2017;19:025001.

    Not in our library10.1088/1367-2630/aa56a2 (opens in a new tab)

41. 41.

    Vila J, Pal RK, Ruzzene M. Observation of topological valley modes in an elastic hexagonal lattice. Phys. Rev. B. 2017;96:134307.

    Not in our library10.1103/physrevb.96.134307 (opens in a new tab)

42. 42.

    Collins MJ, Zhang F, Bojko R, Chrostowski L, Rechtsman MC. Integrated optical Dirac physics via inversion symmetry breaking. Phys. Rev. A. 2016;94:063827.

    Not in our library10.1103/physreva.94.063827 (opens in a new tab)

43. 43.

    Jones AM, et al. Optical generation of excitonic valley coherence in monolayer WSe2. Nat. Nanotech. 2013;8:634-638.

    Not in our library10.1038/nnano.2013.151 (opens in a new tab)

44. 44.

    Ye Z, Sun D, Heinz TF. Optical manipulation of valley pseudospin. Nat. Phys. 2016;13:26-29.

    Not in our library10.1038/nphys3891 (opens in a new tab)

45. 45.

    Born, M. & Wolf, E. Principles of Optics: Electromagnetic Theory of Propagation, Interference and Diffraction of Light, 7th edn (Cambridge University Press, Cambridge, 1999).

    Not in our library

46. 46.

    Xiao D, Chang MC, Niu Q. Berry phase effects on electronic properties. Rev. Mod. Phys. 2010;82:1959-2007.

    Not in our library10.1103/revmodphys.82.1959 (opens in a new tab)

47. 47.

    Fukui T, Hatsugai Y, Suzuki H. Chern numbers in discretized brillouin zone: efficient method of computing (Spin) Hall conductances. J. Phys. Soc. Jpn. 2005;74:1674-1677.

    Not in our library10.1143/jpsj.74.1674 (opens in a new tab)

48. 48.

    Mock A, Lu L, O’Brien J. Space group theory and Fourier space analysis of two-dimensional photonic crystal waveguides. Phys. Rev. B. 2010;81:155115.

    Not in our library10.1103/physrevb.81.155115 (opens in a new tab)

49. 49.

    Sollner I, et al. Deterministic photon-emitter coupling in chiral photonic circuits. Nat. Nanotech. 2015;10:775-778.

    Not in our library10.1038/nnano.2015.159 (opens in a new tab)

50. 50.

    Lodahl P, et al. Chiral quantum optics. Nature. 2017;541:473-480.

    Not in our library10.1038/nature21037 (opens in a new tab)

51. 51.

    Rodríguez-Fortuño FJ, Barber-Sanz I, Puerto D, Griol A, Martínez A. Resolving light handedness with an on-chip silicon microdisk. ACS Photon. 2014;1:762-767.

    Not in our library10.1021/ph500084b (opens in a new tab)

52. 52.

    Joannopoulos, J. D., Johnson, S. G., Winn, J. N. & Meade, R. D. Photonic Crystals: Molding the Flow of Light, 2nd edn (Princeton University Press, New Jersey, 2008).

    Not in our library

53. 53.

    Johnson SG, Joannopoulos JD. Block-iterative frequency-domain methods for Maxwell’s equations in a planewave basis. Opt. Express. 2001;8:173-190.

    Not in our library10.1364/oe.8.000173 (opens in a new tab)

54. 54.

    Oskooi A, et al. Meep: A flexible free-software package for electromagnetic simulations by the FDTD method. Comput. Phys. Commun. 2010;181:687-702.

    Not in our library10.1016/j.cpc.2009.11.008 (opens in a new tab)

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