Richard Marsh and Dr. James P. Lewis, Physics and Astronomy In the world today there is an immense interest in the field of nanotechnology. One particularly unique aspect is molecular electronics. The ability to take one molecule and use it as a transistor has vast applications. While the transistors on our current computers are on […]
Calibration of an X-ray Spectrometer
Michael Johnson and Dr. Scott Bergeson, Physics and Astronomy Cell phones, computers, and other electronics seem to get smaller while their speed and efficiency seem to increase—proving that bigger is not better in this realm. One of the main technologies that has been driving these improvements is lithography, the process by which light is used […]
Broadband Active Noise Control for Small Axial Fans
Scott Jensen and Dr. Scott Sommerfeldt, Physics and Astronomy The problem of actively reducing noise from a small axial fan, a.k.a. a computer fan, is a complicated and difficult problem. A team of several BYU students have been working on the problem for about four years now. About a year ago, we started to solve […]
Relative Binding Affinity of Non-occupied and Single-ion-occupied Acetylcholinesterase with Acetylcholine
Scott Hollingshaus and Dr. James P. Lewis, Physics and Astronomy Trans-membrane channels are the highway mechanisms of biological cells. Through these channels, cells transfer information in the form of ions and other molecules. These transferred materials are called permeating ions. It is well known that most channels work on the principles of size, shape, and […]
X-ray Photoelectron Spectroscopy to Examine Molecular Composition
Amy Baker and Dr. Steve Turley 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 molecular composition and oxidation rate […]
DETERMINING OPTICAL CONSTANTS FOR ThO2 THIN FILMS SPUTTERED UNDER DIFFERENT BIAS VOLTAGES FROM 1.2 TO 6.5 eV BY SPECTROSCOPIC ELLIPSOMETRY
William Ray Evans and Dr. David Allred, Department of Physics and Astronomy The Extreme Ultraviolet (EUV), that portion of the spectrum with photon energies of ~30 to ~300 eV is a scientifically interesting part of the spectrum for many reasons. First of all, there are many applications for EUV optics. The desire to continue “Moore’s […]
High Temperature Vapor Cell for Calcium Absorption Spectroscopy
Christopher Erickson and Dr. Dallin Durfee, Physics & Astronomy Department We have designed, built, and troubleshot a unique calcium vapor cell for use in the development of a dual-species optical frequency standard with stability on the order of one part in 10-16. This vapor cell’s unique design and high temperature allow for the creation of […]
ORCA Final Report: Fingerprinting the α and γ Phases of Alumina using Electron Energy-loss Spectroscopy
David Cullen and Dr. Richard Vanfleet Introduction The alpha, gamma, and kappa phases of aluminum oxide were analyzed using transmission electron microscopy. Micro- and nano-powders of alpha and gamma alumina were donated by Dr. Bartholomew of the BYU Chemical Engineering Department and Alpha Aesar. Kappa phase alumina nanopowders were generated by annealing from a gibbsite […]
An Ultra-Stable Laser Current Controller
Marshall van Zijll and Dr. Dallin Durfee, Physics Our research group has spent lots of effort and time building an ultra-stable laser current controller. This stability is essential for our application of atom interferometry so that our measurements could be very precise. The overall development of our controller has taken almost a year longer than […]
Snyder Space and Non-Commutative Quantum Mechanics
Mark Transtrum and Dr. Jean-Francois Van Huele, Physics and Astronomy Non-commutative quantum mechanics is an active field of research in which the operators corresponding to different spatial dimensions are assumed to not commute, as a consequence of quantization of spacetime. This field is important because it investigates the relationships between fundamental physical ideas such as […]
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