Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 13 of 13 for “"resonant enhancement"”.
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Experiments in Graphene and Plasmonics
… another plasmonic phenomenon, and observe the resonant enhancement of diffraction into a symmetry-prohibited order in silver gratings.
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Search For Contact Interactions Using The Dimuon Mass Spectrum In P-P Collisions At Sqrt(s) = 8 Tev At Cms
… signal for contact interactions is a non-resonant enhancement of the number of events in the high-mass region of the dimuon mass spectrum. This dissertation describes a detailed search strategy for contact interactions using the Compact Muon Solenoid experiment. The dimuon mass spectrum …
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Two classes of unconventional photonic crystals
… of atoms bound in an optical lattice. This is a "resonant photonic crystal", in which an underlying optical resonance modifies the usual band physics. I present a three-dimensional quantum mechanical model of exciton polaritons which describes this system. Amongst other things, the model explains …
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Resonance Raman spectroscopy of single-walled carbon nanotubes
… A diameter selective resonance process allows resonant enhancement of the Raman tangential G-band for the metallic nanotubes in a narrow range of laser excitation energies for a sample of nanotubes with a narrow distribution of diameters. The anti-Stokes Raman spectra of single-wall carbon …
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SPECTROSCOPIC CHARACTERIZATIONS OF THE COMPOUND II INTERMEDIATE OF SOYBEAN PEROXIDASE FROM SOYBEAN SEED COATINGS
… of the iron-ligand, a 3cm-1 upshift and intense resonant enhancement of the peaks, we observed the ferryl nature of compound II intermediate for soybean peroxidase. Badger’s rule was used to estimate the bond distances that existed within Fe-O which offers additional insight into the structure of …
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Nonlinear optical frequency conversion of mode-locked all-solid-state lasers
… in the wavelength region of interest. Using a resonant enhancement method to generate the third harmonic of the near-infrared laser, an average power of 320mW at λ= 355nm is measured, with a peak power of approximately 68W. However, experiment and calculation proves this to be insufficient to …
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High Gain / Broadband Oxide Glasses For Next Generation Raman Amplifiers
… in the Raman susceptibility and a resonant enhancement phenomenon when measurements were conducted near the absorption edge of the material.
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Designing Enhanced Nonlinearity in Plasmonic Devices with Epsilon-Near-Zero Films
… case reaching 2.66 rad/(W·m) at 1561.1 nm. This enhancement also increased propagation loss, so the useful design space is governed by a trade-off between confinement and attenuation. In the dielectric-loaded surface plasmon polariton geometry, the nonlinear overlap metric peaked near 50 nm …
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Photonic crystal enhancement and tuning of quantum dot emission
… in orthogonal directions to enable simultaneous resonant coupling of ultraviolet excitation photons to the QDs and visible QD emission at two different wavelengths to efficiently extract photons normal to the PC surface. The combined excitation and extraction enhancements result in a 5.8X …
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Second-Order Nonlinear Optical Characteristics of Nanoscale Self-Assembled Multilayer Organic Films
… absorption of the second harmonic wavelength and resonant enhancement of chi(2) are investigated, and it is demonstrated that accurate determination of chi(2) may be made for thick films and for films that absorb the second harmonic. The temporal and thermal stability of a variety of ISAM and …
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The scattering of spinning hadrons from lattice QCD
… partial-waves with $J^P=1^+$. No resonance enhancement is anticipated in the flavour exotic isospin-2 channel and as such it provides an ideal testing ground for this first calculation. I work at heavier than physical quark masses at the $\text{SU}(3)_{\text{F}}$ point where the up, down and …
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Effiziente Erzeugung verschränkter Photonenpaare
… definition of entangled photon pairs generated by resonant enhancement of the pump mode and the fluorescence modes. As a first step a linear cavity for the pump mode was realized. Since the conversion probability is proportional to the pump power it was possible to increase the photon pair count rate …
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Nonlinear optical emission and near-field enhancement effects in arrays of gold bowtie nano-antennas
… the effects of the large near-field intensity enhancements from periodic arrays of gold bowtie nano-antennas (BNAs) after illumination by laser light. Specifically, we focus on laser-induced damage, nonlinear optical emission, and a proof-of-concept for utilizing arrays of gold BNAs to enhance …