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- Description:
- Light trapping with standing waves has been achieved using photonic bandgap crystals, metal-dielectric waveguides and periodic metal nanocavity arrays. Compared with photonic materials, plasmonic metal nanocavities can provide light confinement at the sub-wavelength scale with strong near-field electric enhancement. The localized surface plasmons of individual metal nanoparticles can collectively couple...
- Keyword:
- Lattice plasmons, Plasmonics, nanolasing, and Surface lattice resonance
- Subject:
- Nanotechnology, Optics, and Nanoscience
- Creator:
- Li, Ran
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 01/21/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15032 and etdadmin_upload_726683
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- Description:
- Plasmonic metasurfaces are leading the development of next-generation optical devices with unprecedented compactness and functionality. In contrast to bulk refractive optics, these planar surfaces manipulate light with rationally designed subwavelength building blocks. This thesis focus on how emerging materials and design methods advance the eld of metasurfaces. Chapter 1 reviews...
- Keyword:
- Evolutionary algorithms, Plasmonics, Metasurfaces, Reconfigurable lenses, and Predictive design
- Subject:
- Materials Science
- Creator:
- Hu, Jingtian
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/12/2020
- Date Created:
- 2019-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:14543 and etdadmin_upload_640950
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- Description:
- Ordered arrays of metallic nanoparticles (NPs) are a promising platform for technological applications and fundamental investigations due to their ability to excite surface lattice resonances (SLRs). SLRs can support extremely high local electric fields that have been used to realize exotic physical phenomena. The open cavity architecture lends itself to...
- Keyword:
- Photonics, Protein Hydrogel, Plasmonics, Titanium Nitride, Nanofabrication, and Surface Lattice Resonance
- Subject:
- Nanotechnology, Optics, and Materials Science
- Creator:
- Reese, Thaddeus Allen
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 06/28/2021
- Date Created:
- 2021-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15496 and etdadmin_upload_799920
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- Description:
- Colloidal crystals are promising candidates for nanophotonic applications due to their strong interactions with light and the capability to tailor such interactions through crystal design and engineering. DNA-programmable assembly, in particular, allows for precise structural control down to the sub-nanometer length scale. In this thesis, ways of designing, synthesizing, and...
- Keyword:
- Plasmonics, Soft Matter, Nanophotonics, DNA-Programmable Assembly, and Colloidal Crystal Engineering
- Subject:
- Nanotechnology, Physical chemistry, and Electrical engineering
- Creator:
- Sun, Lin
- Owner:
- Scholarly Digital Publishing
- Language:
- en
- Date Uploaded:
- 02/01/2021
- Date Created:
- 2020-01-01
- Resource Type:
- Dissertation
- Alternate Identifier:
- http://dissertations.umi.com/northwestern:15157 and etdadmin_upload_748183
-
- Description:
- Plasmonic nanocavities consisting of metal nanoparticle (NP) arrays support surface lattice resonances (SLR) or lattice plasmon, emerged as an exciting platform for manipulating light-matter interactions at the nanoscale. Their recent prominence can be attributed to a combination of desirable photonic and plasmonic characteristics: high electromagnetic field enhancements extended over large...
- Keyword:
- exciton-plasmon coupling, ultrafast dynamics, Nano-lasing, stimulated emission, ASE, and Plasmonics
- Subject:
- Applied Physics
- Creator:
- Weijia Wang
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 02/25/2019
- Date Modified:
- 02/25/2019
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
-
- Description:
- Plasmonic nanostructures are capable of trapping and confining light at the nanoscale, leading to interesting optical phenomena involving enhanced light-matter interactions. These responses arise in two forms: surface plasmon polaritons propagating on the surface of metal films and localized surface plasmons confined to the surface of metal nanoparticles. Plasmonic modes...
- Keyword:
- Nanotechnology, Plasmonics, Symmetry, Nanofabrication, Nanopatterning, and Lasers
- Subject:
- Materials Science and Engineering
- Creator:
- Michael Knudson
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 02/25/2019
- Date Modified:
- 02/25/2019
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
-
- Description:
- This dissertation develops computational models to study the optical coupling between plasmonic nanoparticles and quantum emitters. A large number of nanophotonic applications function by using either plasmon enhanced fields to enhance optical processes within quantum emitters or the sensitivity of plasmon resonances to their environment. Developing computational methods to fully...
- Keyword:
- Quantum Dots, Plexcitons, Metal Nanoparticles, Plasmonics, Chiral Imprinting, and FDTD
- Subject:
- Chemistry
- Creator:
- Thomas Alexander Reichmanis Purcell
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 10/08/2019
- Date Modified:
- 10/08/2019
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
-
- Description:
- Ultrathin optical platform including two-dimensional materials and metasurfaces have emerged as potential candidates for novel nanophotonic applications. In this dissertation, I will present the possibility to achieve full active control of the electromagnetic waves with the platform in the flatland. We could achieve the amplitude control, which will be useful...
- Keyword:
- 2D Materials, Flatland Optics, Plasmonics, Metasurfaces, and Nanophotonics
- Subject:
- Electrical Engineering
- Creator:
- Zizhuo Liu
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 10/21/2019
- Date Modified:
- 10/21/2019
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation
-
- Description:
- Individual plasmonic nanoparticles have the potential to revolutionize all areas of energy science, catalysis, organic electronics, and solar technology. Owing to their light trapping and focusing ability, single nanoparticles can be utilized to efficiently drive chemical reactions at the sub-nanometer scale. Much of the fundamental science regarding how plasmons can...
- Keyword:
- Single nanoparticle, Plasmonics, Electron transfer, Hot electron chemistry, and SERS
- Subject:
- Applied Physics
- Creator:
- Emily Sprague-Klein
- Owner:
- Scholarly Digital Publishing
- Date Uploaded:
- 11/25/2019
- Date Modified:
- 11/25/2019
- Date Created:
- 2018-01-01
- Resource Type:
- Dissertation