Share Email Print
cover

Journal of Biomedical Optics

Ultrasharp light-scattering resonances of structured nanospheres: effects of size-dependent dielectric functions
Format Member Price Non-Member Price
PDF $20.00 $25.00
cover GOOD NEWS! Your organization subscribes to the SPIE Digital Library. You may be able to download this paper for free. Check Access

Paper Abstract

Recently, Chen et al. [J. Biomed. Opt. Vol. 10, 024005 (2005)] reported on the concept of multicolor molecular imaging, which uses resonant light-scattering spectroscopy of multilayer nanospheres. They claimed that the resonance scattering peaks of three-layer nanoshells can be designed so that the ultrasharp widths are as narrow as 10 nm. Here we show that such ultrasharp labels cannot be fabricated in reality because the effects of size-dependent dielectric functions result in the five- to tenfold broadening of resonant scattering peaks. Furthermore, contrary to the data of Chen et al., we did not find any significant advantages of three-layer structures, as compared with the usual silica/metal nanoshells.

Paper Details

Date Published: 1 July 2006
PDF: 5 pages
J. Biomed. Opt. 11(4) 044002 doi: 10.1117/1.2337526
Published in: Journal of Biomedical Optics Volume 11, Issue 4
Show Author Affiliations
Boris N. Khlebtsov, Institute of Biochemistry and Physiology of Plants and Microorganisms (Russia)
Nikolai G. Khlebtsov, Institute of Biochemistry and Physiology of Plants and Microorganisms (Russia)


© SPIE. Terms of Use
Back to Top