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oai:www.ideals.illinois.edu:2142/17066 2023-07-10 col_2142_5131 col_2142_13836 com_2142_5130 com_2142_13835 com_2142_234

Nuzzo, Ralph G. Nuzzo, Ralph G. Rogers, John A. Lewis, Jennifer A. Shim, Moonsub Yao, Jimin 2010-08-31T20:31:15Z 2010-08-31T20:31:15Z 2012-09-07T16:43:40Z 2010-08-31T20:31:15Z 2010-08 Surface plasmons, due to their extreme sensitivity to changes in refractive index occurring at a metal/dielectric interface and their ability to significantly enhance electromagnetic fields near a metal, offer exciting opportunities for real-time, fully label free forms of chemical/biological detection and field-enhanced applications including surface enhanced Raman scattering (SERS), and photovoltaics. Novel classes of plasmonic crystals fabricated with precisely controlled arrays of subwavelength metal nanostructures provide a promising platform for the sensing and imaging of surface binding events with micrometer spatial resolution over large areas. Soft lithography, one family of unconventional nanofabrication methods, provides a robust, cost-effective route for generating highly uniform, functional nanostructures over large areas with molecular scale resolution. This dissertation describes the development and utility of several classes of functional, nanostructured plasmonic materials with predictable optical properties. A novel, low-cost optical sensor with atomic scale sensitivity at visible wavelength range was developed by tuning the optical response of a plasmonic crystal to visible wavelengths through optimization of the distribution and thickness of the thin metal film. Sensing and imaging of various surface binding events were studied to demonstrate their utility for label-free detection. Finite-Difference Time-Domain (FDTD) calculations were carried out to model the optical response of the system and gain insight into the physics of the system. New classes of plasmonic crystals were developed using new materials and fabrication methods, in concert with rational design of the device form factor guided by both experiment and computational electrodynamics simulations. Item withdrawn by Mark Zulauf (zulauf@illinois.edu) on 2010-06-23T22:58:24Z Item was in collections: University of Illinois Theses & Dissertations (ID: 1) No. of bitstreams: 1 Yao_Jimin.pdf: 16524635 bytes, checksum: fd76e6a21c70aac79446f3b242c2f233 (MD5) Made available in DSpace on 2010-08-31T20:31:15Z (GMT). No. of bitstreams: 3 Yao_Jimin.pdf: 16524635 bytes, checksum: fd76e6a21c70aac79446f3b242c2f233 (MD5) 1_Yao_Jimin.pdf: 16530503 bytes, checksum: ff32aec0d0375bc41a6abf436c8d6a2d (MD5) license.txt: 4056 bytes, checksum: af3b7b3266a32190924842d663056db9 (MD5) Item marked as restricted to the 'Administrator' Group (id=1) by William Ingram (wingram2@illinois.edu) on 2010-08-31T20:32:56Z Item is restricted until 2012-08-31T20:32:49Z Item reinstated by Sarah Shreeves (sshreeve@illinois.edu) on 2012-09-07T16:43:40Z Item was in collections: University of Illinois Dissertations and Theses (ID: 204) Dissertations and Theses - Materials Science and Engineering (ID: 649) No. of bitstreams: 4 Yao_Jimin.pdf: 16524635 bytes, checksum: fd76e6a21c70aac79446f3b242c2f233 (MD5) 1_Yao_Jimin.pdf: 16530503 bytes, checksum: ff32aec0d0375bc41a6abf436c8d6a2d (MD5) license.txt: 4056 bytes, checksum: af3b7b3266a32190924842d663056db9 (MD5) 1_Yao_Jimin.pdf.txt: 411397 bytes, checksum: d385a16b73ed409148ccf27cec89a6e5 (MD5) Item released from any restrictions by Sarah Shreeves (sshreeve@illinois.edu) on 2012-09-07T16:43:40Z http://hdl.handle.net/2142/17066 en Copyright 2010 Jimin Yao surface plasmon resonance sensing imaging Finite-difference Time-domain (FDTD) simulation nanofabrication thin film materials Functional nanostructured plasmonic materials: fabrication, simulation, imaging and sensing applications Materials Science & Engineerng 1919 Materials Science & Engr 0130 University of Illinois at Urbana-Champaign Dissertation Ph.D. PHD:Materials Sci & Engr -UIUC 10KS0130PHD