Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Keyword
-
- Aluminum oxide; Nanostructures; Porous silicon; Thin films (1)
- Applied sciences (1)
- Characterization of metallic nanoparticles; Gold – Properties; Nanoparticles; Optical properties of gold (1)
- Copper nanowires (1)
- Gold nanoparticles (1)
-
- Localized surface plasmons (1)
- Nanotechnology (1)
- Optical antennas (1)
- Plasmon polarization (1)
- Plasmonic nanoantennas (1)
- Plasmons (Physics) (1)
- Semiconductors (1)
- Sensing (1)
- Silver nanospheres; Raman effect; Raman properties of gold (1)
- Silver nanospheres; Raman spectroscopy; Silver – Properties; Simulation of optical properties of metal nanospheres; Surface enhanced Raman spectroscopy; Synthesis of metal nanoparticles (1)
- Surface enhanced Raman scattering (SERS) substrates (1)
- Surface plasmon resonance (1)
Articles 1 - 4 of 4
Full-Text Articles in Nanotechnology Fabrication
Hybrid Plasmonic Nanoantennas: Fabrication, Characterization, And Application, Shengjie Zhai
Hybrid Plasmonic Nanoantennas: Fabrication, Characterization, And Application, Shengjie Zhai
UNLV Theses, Dissertations, Professional Papers, and Capstones
As optical counterpart of microwave antennas, plasmonic nanoantennas are important nanoscale devices for converting propagating optical radiation into confined/enhanced electromagnetic fields. Presently, nanoantennas, with a typical size of 200-500 nm, have found their applications in bio-sensing, bio-imaging, energy harvesting, and disease cure and prevention. With the device feature size of next generation IC goes down to 22 nm or smaller, and biological/chemical sensing reaches the Gene’s level, the sizes of the corresponding nanoantennas have to be scaled down to sub-100nm level. In the literature, these sub-100nm nanoantennas are referred as deep subwavelength nanoantennas as size of such miniaturized nanoantennas is …
Synthesis, Characterization And Simulation Of Optical And Raman Properties Of Metal Nanoparticles, Sriteja Yamparala
Synthesis, Characterization And Simulation Of Optical And Raman Properties Of Metal Nanoparticles, Sriteja Yamparala
UNLV Theses, Dissertations, Professional Papers, and Capstones
Metal nanoparticles are of strong interest for their unusual optical and Raman properties with potential for new and improved device applications. Specifically, the significantly enhanced Raman Scattering enabled by Surface Plasmon Resonance on metal nanoparticles open up the potential for the implementation of very sensitive sensors. It has been demonstrated that Surface Plasmon resonance can be used for the detection of a single molecule. Out of the various metal nanoparticles that have been investigated, the most promising are that made of gold and silver. Metal nananoparticles of gold and silver show strong Raman enhancement in the visible spectral region, making …
Fabrication, Characterization And Simulation Of Non-Lithographic Nanostructures And Their Potential Applications, Neelanjan Bhattacharya
Fabrication, Characterization And Simulation Of Non-Lithographic Nanostructures And Their Potential Applications, Neelanjan Bhattacharya
UNLV Theses, Dissertations, Professional Papers, and Capstones
The dissertation describes the formation of porous silicon through the pores of porous alumina on a silicon substrate. Porous silicon, by itself, is inherently a non-uniform material that has non-uniform optical and electronic properties. In addition, it is also mechanically fragile material requiring careful material handling. The porous silicon fabricated through the nanosized pores of porous alumina are expected to mitigate these problems, thereby enhancing commercial viability of the device. The porous silicon as well the porous alumina have been synthesized through anodisation for various parameters and also various types of anodizing electrolytes. The porous silicon, so obtained have been …
Individual Copper Nanowire Decorated By Gold Nanoparticles For Surface Enhanced Raman Scattering, Roshan Guttikonda
Individual Copper Nanowire Decorated By Gold Nanoparticles For Surface Enhanced Raman Scattering, Roshan Guttikonda
UNLV Theses, Dissertations, Professional Papers, and Capstones
In this Thesis, I discuss the theory, implementation and applications of Surface enhanced Raman scattering (SERS). Surface enhanced Raman scattering has been used to detect 4 mercaptopyridine molecules. On a Silicon wafer, Gold nanoparticles are deposited onto Copper nanowires. Hotspots occur at the small gap (less than 10nm) between the nanowire and nanoparticle. The interaction of the electromagnetic field of the incident laser and the surface plasmon resonances of the metal nanoparticles at the hot spots enhances the Raman scattering signal of the adsorbed pyridine molecule (10 -3 M ). The dependence of SERS signal on the polarization angle of …