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  Direct monitoring of plasmon resonances in a tip-surface gap of varying width

Pettinger, B., Domke, K. F., Zhang, D., Schuster, R., & Ertl, G. (2007). Direct monitoring of plasmon resonances in a tip-surface gap of varying width. Physical Review B, 76(11): 113409. doi:10.1103/PhysRevB.76.113409.

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0010-FFBD-4 Version Permalink: https://hdl.handle.net/21.11116/0000-0006-EA95-A
Genre: Journal Article

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 Creators:
Pettinger, Bruno1, Author           
Domke, Katrin Friederike1, Author           
Zhang, Dai1, Author           
Schuster, Rolf, Author
Ertl, Gerhard1, Author           
Affiliations:
1Physical Chemistry, Fritz Haber Institute, Max Planck Society, ou_634546              

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Free keywords: Raman spectra; spectral line shift; surface dynamics; surface plasmon resonance
 Abstract: We have studied the dependence of tip-enhanced Raman (TER) spectra composed of discrete Raman lines and an intense Lorentzian-shaped background on varying interparticle distance. For increasing tip-sample separation, we observe a remarkable blueshift of the background maximum that is ascribed to an energy shift of the localized surface plasmon resonance. In addition, we report on a steep background and Raman band intensity decrease within 5–10 nm tip retraction that highlights the underlying near-field enhancement mechanism of TER spectroscopy.

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Language(s): eng - English
 Dates: 2007-06-082007-09-21
 Publication Status: Issued
 Pages: -
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: eDoc: 269387
DOI: 10.1103/PhysRevB.76.113409
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Title: Physical Review B
  Abbreviation : Phys. Rev. B
Source Genre: Journal
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Publ. Info: Woodbury, NY : American Physical Society
Pages: - Volume / Issue: 76 (11) Sequence Number: 113409 Start / End Page: - Identifier: ISSN: 1098-0121
CoNE: https://pure.mpg.de/cone/journals/resource/954925225008