Applied Physics B

, Volume 104, Issue 3, pp 653–657

Broadband slow-light in graded-grating-loaded plasmonic waveguides at telecom frequencies

Authors

    • Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and EngineeringHuazhong University of Science and Technology
  • G. P. Wang
    • Key Laboratory of Acoustic and Photonic Materials and Devices, Ministry of Education and Department of PhysicsWuhan University
  • X. Li
    • Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and EngineeringHuazhong University of Science and Technology
  • W. Li
    • Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and EngineeringHuazhong University of Science and Technology
  • Y. Shen
    • Department of PhysicsNanchang University
  • J. Lai
    • Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and EngineeringHuazhong University of Science and Technology
  • S. Chen
    • Wuhan National Laboratory for Optoelectronics, School of Optoelectronic Science and EngineeringHuazhong University of Science and Technology
Article

DOI: 10.1007/s00340-011-4476-5

Cite this article as:
Chen, L., Wang, G.P., Li, X. et al. Appl. Phys. B (2011) 104: 653. doi:10.1007/s00340-011-4476-5

Abstract

We explore developing graded-grating-loaded plasmonic waveguide for “trapped rainbow” at telecom frequencies by modulating feature sizes of gratings to extend its operational frequencies to the infrared domain. We show that such a structure is capable of localizing light waves of different infrared frequencies at different spatial positions. Such a slow-light device offers the advantages including a wide spectral band, a long photon lifetime and strong confinement, which may enable practical applications in various nanophotonic circuits.

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Copyright information

© Springer-Verlag 2011