Brandon Skinner and Dr. Tim Leishman, Physics and Astronomy Introduction The idea for this project came at a time when I was learning many new things about sound, electronics, and electromagnetic theory. In fact, it was the combination of these ideas that lead me to question the functioning of magnetic guitar pickups and to wonder […]
Vanadium Dioxide Deposited Substrates for Thermochromic Applications
S. Andrew Ning and Dr. David Allred, Physics and Astronomy As the technology was readily available here at BYU, we decided to make our own electrochromic material to meet our specifications. After a literature review we found a study done by Wang et al. [1] which suggests a preparation method using a thin film of […]
Ultra-Stable Laser For Use In A Next Generation Atom Interferometer
Brian Neyenhuis and Dr. Dallin Durfee, Physics and Astronomy Laser diodes are an attractive option for atomic physics research. They are small, available in a wide variety of wavelengths, inexpensive, and require little power. Because diode lasers are typically made in bulk for the computing or telecom industries where linewidth and mode structure are not […]
DNA as a Potential Molecular Nanowire
Richard Marsh and Dr. James P. Lewis, Department of Physics and Astronomy In the world today there is an immense interest in the field of nanotechnology. One particularly unique aspect is that of molecular electronics. The ability to take one molecule and use it as a transistor has many applications. While the transistors on our […]
Use of 2 MeV Proton-Based PIXE in Compositional Analysis of Paint Pigments
Benjamin Hall and Dr. Lawrence Rees, Physics And Astronomy Using the resources provided by this grant, Dr. Rees and I set out to classify the pigments used in artistic oil painting according to their elemental composition. This we did using proton-based Particle-Induced X-ray Emission (PIXE) spectroscopy. Our goal in this portion of the research was […]
X-ray Photoelectron Spectroscopy to Examine Molecular Composition
Amy Grigg and Dr. Steve Turley, Department of Physics and Astronomy Abstract The extreme ultraviolet (EUV) spectrum is becoming increasingly important. Its most promising applications include lithography for integrated circuits, space-based astronomy, and medical microscopes. Unfortunately, the optical constants of materials, particularly heavy metals, in this range are not well known. This work examines the […]
X-ray Powder-diffraction Simulations of Large-scale Defect-structure Models
Jared Dickson and Dr. Branton Campbell, Physics and Astronomy Open-framework compounds, most notably the aluminosilicate zeolites, play a critical role in modern technology. Their robust crystalline structures contain large cavities and channels of molecular dimensions which make them useful as molecular sieves (desiccants, membrane filters, gas-separators), ion-exchangers (soaps, detergents, water softeners, radioactive waste sequestering agents), […]
Analysis of the Variable Star V402 Cephei
Summer Dale Beckstrand and Professor Michael D. Joner, Physics and Astronomy The evolution of stars is critical to understanding the universe. Many stars go through a stage of instability in their lifetimes. When they are in this stage they are referred to as “intrinsic variable stars,” or pulsators. These stars pulsate, that is they expand […]
Additional Elements for Improving the Accuracy of the Compositional Analysis of Bullet Lead
Will Ashby and Dr. Lawrence B. Rees, Physics and Astronomy History of CABL Bullets often mutate or fragment upon impact. This can erase physical markings such as rifling. Until the development in the mid 1900s of techniques for precisely analyzing elemental compositions of materials such as lead, forensics scientists could do nothing to compare bullets […]
REACTIVE GAS SPUTTERING OF LITHIUM COMPOUND THIN FILMS
Gregory B. Thompson and Dr. David D. Allred, Physics and Astronomy This research project reports the reactive gas sputtering deposition and structural characterization of lithium compound thin films (LiH and LiF). These materials, due to their low absorption, may have a role as spacer layers in soft x-ray multilayer reflectors. A multilayer is a periodic, […]
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