Open Access. Powered by Scholars. Published by Universities.®
- Keyword
-
- Astronomy (1)
- Atom (1)
- Carrier Recombination (1)
- Doping (1)
- Drift Diffusion (1)
-
- Electrodynamics (1)
- Gallium Nitride (1)
- Gyroscope (1)
- Heterostructure (1)
- Indium Nitride (1)
- LED (1)
- Larmor precession (1)
- Lifetime (1)
- Light Absorption (1)
- Light Pollution (1)
- Maxwell's Equations (1)
- Nmr (1)
- Perturbation Theory (1)
- Polarization (1)
- Quantum Mechanics (1)
- Quantum Well (1)
- Quantum mechanics (1)
- Semiconductor (1)
- Spectra (1)
- Spectrometer (1)
- Street Light (1)
- Publication Type
Articles 1 - 5 of 5
Full-Text Articles in Physics
Investigation Of Optical Dipole Traps For Trapping Neutral Atoms For Quantum Computing, Danielle May
Investigation Of Optical Dipole Traps For Trapping Neutral Atoms For Quantum Computing, Danielle May
Physics
No abstract provided.
Leds And Astronomy, Britny N. Delp, Stephen M. Pompea
Leds And Astronomy, Britny N. Delp, Stephen M. Pompea
STAR Program Research Presentations
Using a Czerny-Turner spectrometer, 45 different types of outdoor lights were categorized. These spectra were used to determine how useful the light is to human eyes and how dark skies friendly these lights are. Dark skies friendly lighting means that little to no light shines above a right angle to the light, and should emit as little as possible below 500nm (green) wavelengths. The short wavelengths present a problem to astronomers in the form of Rayleigh scattering. The following criterion were used in selecting the best source for urban and rural lighting: color rendition measured by color rendering index (CRI), …
The Effect Of Polarization And Ingan Quantum Well Shape In Multiple Quantum Well Light Emitting Diode Heterostructures, Patrick M. Mcbride
The Effect Of Polarization And Ingan Quantum Well Shape In Multiple Quantum Well Light Emitting Diode Heterostructures, Patrick M. Mcbride
Master's Theses
Previous research in InGaN/GaN light emitting diodes (LEDs) employing semi-classical drift-diffusion models has used reduced polarization constants without much physical explanantion. This paper investigates possible physical explanations for this effective polarization reduction in InGaN LEDs through the use of the simulation software SiLENSe. One major problem of current LED simulations is the assumption of perfectly discrete transitions between the quantum well (QW) and blocking layers when experiments have shown this to not be the case. The In concentration profile within InGaN multiple quantum well (MQW) devices shows much smoother and delayed transitions indicative of indium diffusion and drift during …
Gaussian Beam Steering On A Target Plane Via High Speed Orthogonal Mirror-Mounted Galvanometers, Keith Gresiak
Gaussian Beam Steering On A Target Plane Via High Speed Orthogonal Mirror-Mounted Galvanometers, Keith Gresiak
Physics
No abstract provided.
Techniques To Characterize Vapor Cell Performance For A Nuclear-Magnetic-Resonance Gyroscope, James Julian Mirijanian
Techniques To Characterize Vapor Cell Performance For A Nuclear-Magnetic-Resonance Gyroscope, James Julian Mirijanian
Master's Theses
Research was performed to improve the procedures for testing performance parameters of vapor cells for a nuclear-magnetic-resonance gyroscope. In addition to summarizing the theoretical infrastructure of the technology, this research resulted in the development and successful implementation of new techniques to characterize gyro cell performance.
One of the most important parameters to measure for gyro performance is the longitudinal spin lifetime of polarized xenon atoms in the vapor cell. The newly implemented technique for measuring these lifetimes matches results from the industry standard method to within 3.5% error while reducing the average testing time by 76% and increasing data resolution …