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Gate-tuning of graphene plasmons revealed by infrared nano-imaging

Nature volume 487, pages 82–85 (2012)Cite this article

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Abstract

Surface plasmons are collective oscillations of electrons in metals or semiconductors that enable confinement and control of electromagnetic energy at subwavelength scales1,2,3,4,5. Rapid progress in plasmonics has largely relied on advances in device nano-fabrication5,6,7, whereas less attention has been paid to the tunable properties of plasmonic media. One such medium—graphene—is amenable to convenient tuning of its electronic and optical properties by varying the applied voltage8,9,10,11. Here, using infrared nano-imaging, we show that common graphene/SiO2/Si back-gated structures support propagating surface plasmons. The wavelength of graphene plasmons is of the order of 200 nanometres at technologically relevant infrared frequencies, and they can propagate several times this distance. We have succeeded in altering both the amplitude and the wavelength of these plasmons by varying the gate voltage. Using plasmon interferometry, we investigated losses in graphene by exploring real-space profiles of plasmon standing waves formed between the tip of our nano-probe and the edges of the samples. Plasmon dissipation quantified through this analysis is linked to the exotic electrodynamics of graphene10. Standard plasmonic figures of merit of our tunable graphene devices surpass those of common metal-based structures.

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Figure 1: Infrared nano-imaging experiment and results.
Figure 2: Spatial variation of the electric field and near-field amplitude at the graphene edge.
Figure 3: Electrostatically tunable plasmons in back-gated graphene.

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References

  1. Atwater, H. A. The promise of plasmonics. Sci. Am. 296, 56–62 (2007)

    Article  CAS  Google Scholar 

  2. West, P. R. et al. Searching for better plasmonic materials. Laser Photon. Rev. 4, 795–808 (2010)

    Article  CAS  ADS  Google Scholar 

  3. Stockman, M. I. Nanoplasmonics: the physics behind the applications. Phys. Today 64, 39–44 (2011)

    Article  Google Scholar 

  4. Maier, S. A. Plasmonics: Fundamentals and Applications Ch. 4 (Springer, 2007)

    Book  Google Scholar 

  5. Schuller, J. A. et al. Plasmonics for extreme light concentration and manipulation. Nature Mater. 9, 193–204 (2010)

    Article  CAS  ADS  Google Scholar 

  6. Nagpal, P., Lindquist, N. C., Oh, S.-H. & Norris, D. J. Ultrasmooth patterned metals for plasmonics and metamaterials. Science 325, 594–597 (2009)

    Article  CAS  ADS  Google Scholar 

  7. Lal, S., Link, S. & Halas, N. J. Nano-optics from sensing to waveguiding. Nature Photon. 1, 641–648 (2007)

    Article  CAS  ADS  Google Scholar 

  8. Castro Neto, A. H., Guinea, F., Peres, N. M. R., Novoselov, K. S. & Geim, A. K. The electronic properties of graphene. Rev. Mod. Phys. 81, 109–162 (2009)

    Article  CAS  ADS  Google Scholar 

  9. Wang, F. et al. Gate-variable optical transitions in graphene. Science 320, 206–209 (2008)

    Article  CAS  ADS  Google Scholar 

  10. Li, Z. Q. et al. Dirac charge dynamics in graphene by infrared spectroscopy. Nature Phys. 4, 532–535 (2008)

    Article  CAS  ADS  Google Scholar 

  11. Vakil, A. & Engheta, N. Transformation optics using graphene. Science 332, 1291–1294 (2011)

    Article  CAS  ADS  Google Scholar 

  12. Jablan, M., Buljan, H. & Soljacic, M. Plasmonics in graphene at infrared frequencies. Phys. Rev. B 80, 245435 (2009)

    Article  ADS  Google Scholar 

  13. Fei, Z. et al. Infrared nanoscopy of Dirac plasmons at the graphene-SiO2 interface. Nano Lett. 11, 4701–4705 (2011)

    Article  CAS  ADS  Google Scholar 

  14. Ju, L. et al. Graphene plasmonics for tunable terahertz metamaterials. Nature Nanotechnol. 6, 630–634 (2011)

    Article  CAS  ADS  Google Scholar 

  15. Huber, A., Ocelic, N., Kazantsev, D. & Hillenbrand, R. Near-field imaging of mid-infrared surface phonon polariton propagation. Appl. Phys. Lett. 87, 081103 (2005)

    Article  ADS  Google Scholar 

  16. Dallapiccola, R., Dubois, C., Gopinath, A., Stellacci, F. & Dal Negro, L. Near-field excitation and near-field detection of propagating surface plasmon polaritons on Au waveguide structures. Appl. Phys. Lett. 94, 243118 (2009)

    Article  ADS  Google Scholar 

  17. Casiraghi, C. et al. Raman spectroscopy of graphene edges. Nano Lett. 9, 1433–1441 (2009)

    Article  CAS  ADS  Google Scholar 

  18. Caridad, J. M. et al. Effects of particle contamination and substrate interaction on the Raman response of unintentionally doped graphene. J. Appl. Phys. 108, 084321 (2010)

    Article  ADS  Google Scholar 

  19. Hwang, E. H. & Das Sarma, S. Dielectric function, screening, and plasmons in two-dimensional graphene. Phys. Rev. B 75, 205418 (2007)

    Article  ADS  Google Scholar 

  20. Ando, T., Zheng, Y. & Suzuura, H. Dynamical conductivity and zero-mode anomaly in honeycomb lattices. J. Phys. Soc. Jpn 71, 1318–1324 (2002)

    Article  CAS  ADS  Google Scholar 

  21. Peres, N. M. R., Guinea, F. & Castro Neto, A. H. Electronic properties of disordered two-dimensional carbon. Phys. Rev. B 73, 125411 (2006)

    Article  ADS  Google Scholar 

  22. Gusynin, V. P. & Sharapov, S. G. Transport of Dirac quasiparticles in graphene: Hall and optical conductivities. Phys. Rev. B 73, 245411 (2006)

    Article  ADS  Google Scholar 

  23. Grushin, A. G., Valenzuela, B. & Vozmediano, M. A. H. Effect of Coulomb interactions on the optical properties of doped graphene. Phys. Rev. B 80, 155417 (2009)

    Article  ADS  Google Scholar 

  24. Peres, N. M. R., Ribeiro, R. M. & Castro-Neto, A. H. Excitonic effects in the optical conductivity of gated graphene. Phys. Rev. Lett. 105, 055501 (2010)

    Article  CAS  ADS  Google Scholar 

  25. Hwang, J., Leblanc, J. P. F. & Carbotte, J. P. Optical self-energy in graphene due to correlations. J. Phys. Condens. Matter 24, 245601 (2012)

    Article  CAS  ADS  Google Scholar 

  26. Rana, F. Graphene terahertz plasmon oscillators. IEEE Trans. Nanotechol. 7, 91–99 (2008)

    Article  ADS  Google Scholar 

  27. Chen, J. et al. Optical nano-imaging of gate-tunable graphene plasmons. Nature http://dx.doi.org/10.1038/nature11254 (this issue).

  28. Novotny, L. & Hecht, B. Principles of Nano-Optics (Cambridge Univ. Press, 2006)

    Book  Google Scholar 

  29. Das, A. et al. Monitoring dopants by Raman scattering in an electrochemically top-gated graphene transistor. Nature Nanotechnol. 3, 210–215 (2008)

    Article  CAS  Google Scholar 

  30. Rodin, A. S. Electronic Properties of Low-Dimensional Systems. PhD thesis, UCSD (2012)

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Acknowledgements

We acknowledge support from AFOSR, ONR and DARPA. The analysis of plasmonic losses and many-body effects was supported by DOE-BES grant DE-FG02-00ER45799. W.B., Z.Z. and C.N.L. were supported by NSF DMR/1106358, ONR N00014-09-1-0724, ONR/DMEA H94003-10-2-1003 and FENA Focus Center. G.D. and M.T. were supported by NASA. M.M.F. was supported by UCOP and NSF PHY11-25915. A.H.C.N. acknowledges NRF-CRP grant R-144-000-295-281. L.M.Z was supported by DOE grant no. DE-FG02-08ER46512. M.W. thanks the Alexander von Humboldt Foundation for financial support. F.K. was supported by Deutsche Forschungsgemeinschaft through the Cluster of Excellence Munich Centre for Advanced Photonics.

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Authors and Affiliations

  1. Department of Physics, University of California, San Diego, La Jolla, California 92093, USA,

    Z. Fei, A. S. Rodin, G. O. Andreev, A. S. McLeod, M. Wagner, M. M. Fogler & D. N. Basov

  2. Department of Physics and Astronomy, University of California, Riverside, 92521, California, USA

    W. Bao, Z. Zhao & C. N. Lau

  3. Materials Research Science and Engineering Center, University of Maryland, College Park, 20742, Maryland, USA

    W. Bao

  4. Department of Physics, Boston University, Boston, 02215, Massachusetts, USA

    L. M. Zhang

  5. Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, USA,

    M. Thiemens

  6. Department of Physics, California State University, San Marcos, 92096, California, USA

    G. Dominguez

  7. Graphene Research Centre and Department of Physics, National University of Singapore, 117542, Singapore

    A. H. Castro Neto

  8. Max Planck Institute of Quantum Optics and Center for Nanoscience, Garching, 85714, Germany

    F. Keilmann

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All authors were involved in designing the research, performing the research, and writing the paper.

Corresponding author

Correspondence to D. N. Basov.

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Competing interests

F.K. is co-founder of Neaspec, producer of the scattering-type scanning near-field optical microscope apparatus used in this study. The other authors declare no competing financial interests.

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This file contains Supplementary Text and Data 1-5, Supplementary Figure 1 and additional references. (PDF 182 kb)

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Fei, Z., Rodin, A., Andreev, G. et al. Gate-tuning of graphene plasmons revealed by infrared nano-imaging. Nature 487, 82–85 (2012). https://doi.org/10.1038/nature11253

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