Publication Type |
pre-print |
School or College |
College of Engineering |
Department |
Electrical & Computer Engineering |
Creator |
Simpson, Jamesina J. |
Other Author |
Heifetz, Alexander; Kong, Soon-Cheol; Taflove, Allen; Backman, Vadim |
Title |
Subdiffraction optical resolution of a gold nanosphere located within the nanojet of a Mie-resonant dielectric microsphere |
Date |
2007-01-01 |
Description |
We theoretically investigate light scattering from a bi-sphere system consisting of a gold nanosphere and a lossless dielectric microsphere illuminated at a resonant optical wavelength of the microsphere. Using generalized multisphere Mie theory, we find that a gold nanosphere 100 times smaller than the dielectric microsphere can be detected with a subdiffraction resolution as fine as one-third wavelength in the background medium when the microsphere is illuminated at a Mie resonance. Otherwise, off-resonance, the spatial resolution reverts to that of the nonresonant nanojet, approximately one-half wavelength in the background medium. An important potential biophotonics application is the detection of antibody-conjugated gold nanoparticles attached to the membranes of living cells in an aqueous environment. |
Type |
Text |
Publisher |
Optical Society of America |
Volume |
54 |
Issue |
6 |
First Page |
1734 |
Last Page |
1741 |
Dissertation Institution |
University of Utah |
Language |
eng |
Bibliographic Citation |
Simpson, J. J., Heifetz, A., Simpson, J. J., Kong, S.-C., Taflove, A., & Backman, V. (2007). Subdiffraction optical resolution of a gold nanosphere located within the nanojet of a mie-resonant dielectric microsphere. Optics Express, 15(25), 17334-42. |
Rights Management |
(c) Optical Society of America |
Format Medium |
application/pdf |
Format Extent |
153,865 bytes |
Identifier |
uspace,17728 |
ARK |
ark:/87278/s65436c0 |
Setname |
ir_uspace |
ID |
708088 |
Reference URL |
https://collections.lib.utah.edu/ark:/87278/s65436c0 |