| Spectral variations in background light emission of surface-enhanced resonance hyper Raman scattering coupled with plasma resonance of individual silver nanoaggregates. | |
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MedLine Citation:
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PMID: 20886962 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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We demonstrate the origin of spectral variations in background light emission of surface enhanced resonance hyper Raman scattering (SERHRS) from single Ag nanoaggregates. Ag nanoaggregate-by-nanoaggregate variations in background light emission spectra are related to plasma (plasmon) resonance spectra. Temporal variations in background light emission spectra with temporal blueshifts in plasma resonance spectra are also observed under continuous laser excitation. Both types of the variations in background light emission are reproduced by multiplying background light emission spectra measured from a Ag microaggregate by Lorentz function spectra derived from plasma resonance spectra. The reproduction reveals that second electromagnetic (EM) enhancement by plasma resonance is the origin of the variations. Additionally, spectral variations in background light emission of SERHRS are similar to that of surface enhanced resonance Raman scattering (SERRS). The similarity indicates that both types of background light emission commonly obtain second EM enhancement from identical plasma resonance. |
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Authors:
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Tamitake Itoh; Hiroyuki Yoshikawa; Ken-ichi Yoshida; Vasudevanpillai Biju; Mitsuru Ishikawa |
Publication Detail:
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Type: Journal Article; Research Support, Non-U.S. Gov't |
Journal Detail:
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Title: The Journal of chemical physics Volume: 133 ISSN: 1089-7690 ISO Abbreviation: J Chem Phys Publication Date: 2010 Sep |
Date Detail:
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Created Date: 2010-10-04 Completed Date: 2011-02-09 Revised Date: 2011-02-25 |
Medline Journal Info:
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Nlm Unique ID: 0375360 Medline TA: J Chem Phys Country: United States |
Other Details:
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Languages: eng Pagination: 124704 Citation Subset: IM |
Affiliation:
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Nano-Bioanalysis Group, Health Technology Research Institute (HTRI), National Institute of Advanced Industrial Science and Technology (AIST), Takamatsu, Kagawa 761-0395, Japan. |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Metal Nanoparticles* Silver* Spectrum Analysis, Raman / methods* Surface Properties Time Factors |
| Chemical | |
Reg. No./Substance:
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7440-22-4/Silver |
| Comments/Corrections | |
Erratum In:
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J Chem Phys. 2010 Oct 14;133(14):149903 |
From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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