NDLI: Nanoscale Energy Confinement and Hybridization of Surface Plasmons Based on Skin Depth in Au/Ag Core-Shell Nanostructures

Content Provider	Springer Nature Link
Author	Xu, Xi bin Liu, Miao Luo, Jiang shan Wang, Yu ying Yi, Zao Li, Xi bo Yi, You gen Tang, Yong jian
Copyright Year	2014
Abstract	The electric field tends to become distributed within a conductor due to skin effect such that the field density is largest near the surface of the conductor and decreases with greater depths in the conductor. The electric field mainly distributes at the skin of the conductor, between the outer surface and a level called the skin depth. For a plasmonic nanosystem smaller than the skin depth, oscillations of the metal electrons will be driven by the optical electric field penetrating the entire system. This effect will induce confinement of optical energy inside the whole systems and influence the performance of surface plasmon. A theoretical model that a gold core is embedded within Ag nanoshell is constructed to simulate hybridization of surface plasmon and energy confinement in Au/Ag core/shell nanostructures based on the skin depth. Indeed, nanoshells in the core/shell system greatly influence the surface plasmon resonance, and the shell frequency is tuned efficiently through hybridization of surface plasmon. The plasmon resonances in core/shell particles can be understood in terms of hybridization between the plasmon modes of the surfaces and interfaces supported by cavity of the metallic shells. The hybridized plasmons induced by interaction of these plasmon modes can result in energy alteration over a wide range in wavelength. Combining with extinction spectra and field distributions, it can be seen that skin depth plays an important role in energy confinement and hybridization of surface plasmom.
Starting Page	797
Ending Page	808
Page Count	12
File Format	PDF
ISSN	15571955
Journal	Plasmonics
Volume Number	10
Issue Number	4
e-ISSN	15571963
Language	English
Publisher	Springer US
Publisher Date	2014-12-28
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Skin depth Surface plasmon Energy confinement Plasmom hybridization Biotechnology Nanotechnology Biophysics and Biological Physics Biochemistry
Content Type	Text
Resource Type	Article
Subject	Nanoscience and Nanotechnology Biochemistry Biophysics Biotechnology

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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