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Letter

Nanoscale Resolved Infrared Probing of Crystal Structure and of Plasmon−Phonon Coupling

A. Huber, N. Ocelic, T. Taubner, and R. Hillenbrand*

Nano-Photonics Group, Max-Planck-Institut fr Biochemie & Center for Nanoscience (CeNS), Am Klopferspitz 18, 82152 Martinsried, Germany

Nano Lett., 2006, 6 (4), pp 774–778

DOI: 10.1021/nl060092b

Publication Date (Web): March 22, 2006

Corresponding author. E-mail: hillenbr@biochem.mpg.de. Fax: +49 89 8578 2641.

Abstract

We show that slight variations of a crystal lattice cause significant spectral modifications of phonon−polariton resonant near-field interaction between polar semiconductor crystals and a scanning metal tip. Exploiting the effect for near-field imaging a SiC polytype boundary, we establish infrared mapping of crystal structure and crystal defects at 20 nm spatial resolution (λ/500). By spectroscopic probing of doped SiC polytypes, we find that phonon−polariton resonant near-field interaction is also sensitive to electronic properties due to plasmon−phonon coupling in the crystals.

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Published In Issue April 12, 2006
Received January 15, 2006

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Letter

Nanoscale Resolved Infrared Probing of Crystal Structure and of Plasmon−Phonon Coupling

Abstract

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SciFinder Links

History

Recommend & Share

Related Content

Subsurface Raman Imaging with Nanoscale Resolution

Infrared Spectroscopic Mapping of Single Nanoparticles and Viruses at Nanoscale Resolution

Nanoscale Roughness on Metal Surfaces Can Increase Tip-Enhanced Raman Scattering by an Order of Magnitude

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