Abbreviated Journal Title
J. Appl. Phys.
Keywords
PHOTODYNAMIC THERAPY AGENTS; SINGLET OXYGEN; 2ND-HARMONIC GENERATION; FLUORESCENCE MICROSCOPY; RAMAN-SCATTERING; EXCITATION; MOLECULES; Physics, Applied
Abstract
In this article we present the study of the surface plasmon enhanced two-photon absorption of a hydrophilic stilbene derivative (trans-4,4'-diaminostilbene) in aqueous solution at different concentrations. The observed exponential growth of the effective two-photon absorption cross section [sigma(')(2)(Au)] is attributed to the electric-field augmentation via surface plasmon resonance between nanoparticles, i.e., hot spots, and the molecular density on Au nanospheres. An unprecedented sigma(')(2)(Au)=550 000 GM has been measured. This result opens a new universe of applications in multiphoton imaging, photodynamic therapy, telecommunications, optical limiting, and multidimensional data storage using hybrid systems.
Journal Title
Journal of Applied Physics
Volume
101
Issue/Number
8
Publication Date
1-1-2007
Document Type
Article
DOI Link
Language
English
First Page
3
WOS Identifier
ISSN
0021-8979
Recommended Citation
Cohanoschi, Ion; Yao, Sheng; Belfield, Kevin D.; and Hernández, Florencio E., "Effect of the concentration of organic dyes on their surface plasmon enhanced two-photon absorption cross section using activated Au nanoparticles" (2007). Faculty Bibliography 2000s. 6968.
https://stars.library.ucf.edu/facultybib2000/6968
Comments
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