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Highly Efficient and Tailorable On-Chip Metal–Insulator–Metal Plasmonic Nanofocusing Cavity

Li, Zheng and Kou, Jun-long and Kim, Myungki and Lee, Jeong Oen and Choo, Hyuck (2014) Highly Efficient and Tailorable On-Chip Metal–Insulator–Metal Plasmonic Nanofocusing Cavity. ACS Photonics, 1 (10). pp. 944-953. ISSN 2330-4022. http://resolver.caltech.edu/CaltechAUTHORS:20140915-091745481

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Abstract

Simulation techniques were used to investigate the properties of a deep subwavelength-scale on-chip optical cavity composed of a highly efficient metal–insulator–metal 3D-tapered plasmonic nanofocusing waveguide and easily tailorable metal–insulator–metal plasmonic crystals. The configuration described here significantly enhanced the highly efficient field localization in the plasmonic nanofocusing waveguide at the center of the cavity due to the impedance tuning capabilities of the plasmonic crystals. The plasmonic crystals served as nanoscale input and output couplers with designable reflectivities and a clear band-stop regime around the telecommunication wavelength, λ_0 = 1.55 μm. Simulation studies indicated that this configuration could efficiently confine electromagnetic waves on the nanometer length scale through a field intensity enhancement of 7 × 10^3 and a Purcell enhancement of 8 × 10^3 within a volume of 1.4 × 10^(–5) λ_(0)^(3). To evaluate the performance of the highly efficient metal–insulator–metal 3D-tapered plasmonic nanofocusing waveguide structure itself, the overall focusing efficiency, that is, the transmission rate from the wavelength-scale input side to the deep subwavelength-scale focusing core in the tapered waveguide, was calculated to be around 85%.


Item Type:Article
Related URLs:
URLURL TypeDescription
http://dx.doi.org/10.1021/ph500097mDOIArticle
http://pubs.acs.org/doi/abs/10.1021/ph500097mPublisherArticle
http://pubs.acs.org/doi/suppl/10.1021/ph500097mPublisherSupporting Information
ORCID:
AuthorORCID
Kou, Jun-long0000-0002-0481-5149
Choo, Hyuck0000-0002-8903-7939
Additional Information:© 2014 American Chemical Society. Received: March 27, 2014. Publication Date (Web): August 15, 2014 This work has been generously supported by the Powell Foundation Award (HC-1-616700) and the Rosen Bioengineering Center Endowment for Graduate Students (ENDOW.-ROSENBE).
Funders:
Funding AgencyGrant Number
Charles Lee Powell FoundationHC-1-616700
Rosen Bioengineering Center Endowment for Graduate StudentsENDOW.-ROSENBE
Subject Keywords:on-chip nanophotonics, plasmonics, surface plasmon polaritons, nanoscale optical cavity, nanofocusing, tailorable nanoscale mirrors
Record Number:CaltechAUTHORS:20140915-091745481
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:20140915-091745481
Official Citation:Highly Efficient and Tailorable On-Chip Metal–Insulator–Metal Plasmonic Nanofocusing Cavity Zheng Li, Jun-long Kou, Myungki Kim, Jeong Oen Lee, and Hyuck Choo ACS Photonics 2014 1 (10), 944-953
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:49687
Collection:CaltechAUTHORS
Deposited By: Jason Perez
Deposited On:15 Sep 2014 21:04
Last Modified:08 May 2017 23:34

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