Bulletin of the American Physical Society
10th Annual Meeting of the Northwest Section of APS
Volume 53, Number 6
Thursday–Saturday, May 15–17, 2008; Portland, Oregon
Session B1: Atomic, Molecular, and Optical Physics |
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Chair: Shannon Mayer, University of Portland Room: Miller 105 |
Friday, May 16, 2008 2:00PM - 2:36PM |
B1.00001: The Continuing Evolution of Femtosecond Frequency Combs Invited Speaker: Following their development in early 2000, femtosecond frequency combs found immediate application as reference rulers in optical frequency metrology. Stabilization of the frequency comb emitted by an ultrafast laser has also enabled production of carrier-envelope phase-stabilized femtosecond pulses, thereby spurring seminal work in attosecond metrology. As the comb technology itself has matured, new areas of application have emerged such as precise calibration of astronomical spectrographs, arbitrary optical waveform synthesis, and precision spectroscopy. In this talk, I will highlight these new developments and discuss related and current work at UBC on these topics. [Preview Abstract] |
Friday, May 16, 2008 2:36PM - 3:12PM |
B1.00002: Organic (opto)electronic materials: understanding charge carrier dynamics Invited Speaker: There is growing interest in using organic (opto)electronic materials for applications in electronics and photonics. In particular, organic semiconductor thin films offer several advantages over traditional silicon technology, including low-cost processing, the potential for large-area flexible devices, high-efficiency light emission, and widely tunable properties through functionalization of the molecules. Over the past decade, remarkable progress in materials design and purification has been made, which led to applications of organic semiconductors in light-emitting diodes, polymer lasers, photovoltaic cells, high-speed photodetectors, organic thin-film transistors, and many others. Most of the applications envisioned for organic semiconductors rely on their conductive or photoconductive properties. However, despite remarkable progress in organic electronics and photonics, the nature of charge carrier photogeneration and transport in organic semiconductors is not completely understood and remains controversial, partly due to difficulties in assessing intrinsic properties that are often masked by impurities, grain boundaries, etc. Measurements of charge carrier dynamics at picosecond time scales after excitation reveal the intrinsic nature of mobile charge carriers before they are trapped at defect sites. In this presentation, I will review the current state of the field and summarize our recent results on photoconductivity of novel high-performance organic semiconductors (such as functionalized pentacene and anthradithiophene thin films) from picoseconds to seconds after photoexcitation. Photoluminescent properties of these novel materials will also be discussed. [Preview Abstract] |
Friday, May 16, 2008 3:12PM - 3:24PM |
B1.00003: Understanding Entanglement as a Resource for Quantum Information Processing Scott M. Cohen Ever since Erwin Schrodinger shocked the physics world by killing (and not killing) his cat, entanglement has played a critical role in attempts to understand quantum mechanics. More recently, entanglement has been shown to be a valuable resource, of central importance for quantum computation and the processing of quantum information. In this talk, I will describe a new diagrammatic approach to understanding why entanglement is so valuable, the key idea being that entanglement between two systems ``creates'' multiple images of the state of a third. By way of example, I will show how to ``visualize'' teleportation of unknown quantum states, and how to use entanglement to implement an interaction between spatially separated (and therefore non-interacting!) systems. These ideas have also proven useful in quantum state discrimination, where the state of a quantum system is unknown and is to be determined. [Preview Abstract] |
Friday, May 16, 2008 3:24PM - 3:36PM |
B1.00004: Hybrid Gaussian Mode Formation Due to the Common Dielectric Mirror David Foster Electromagnetic Gaussian modes in axially symmetric resonant cavities can be grouped into families indexed by the transverse order, $N$. In paraxial theory, all of the modes in each family are degenerate. In real cavities, however, the modes within a family have slightly different frequencies, with the frequency splitting scale being $O(\theta^2)$, where $\theta$ is the spread angle of the fundamental Gaussian mode. When the spectral width of a cavity is small enough to resolve this frequency splitting, the resulting cavity eigenmodes may be hybrid mixtures of Laguerre-Gauss (LG) modes. In a plano-concave cavity with conducting mirrors, all of the modes are LG modes. If the planar mirror is replaced with a dielectric mirror, the typical eigenmodes for $N > 1$ are hybrid quasi-TE and quasi-TM modes. These hybrid modes have unusual cross sections that are neither like LG modes or Hermite-Gauss modes. Hybrid modes cannot have well defined orbital angular momentum or spin angular momentum. We present a successful perturbation theory in $\theta^2$ which predicts the properties of the hybrid modes based on the TE and TM reflection phases of the planar mirror. [Preview Abstract] |
Friday, May 16, 2008 3:36PM - 3:50PM |
B1.00005: BREAK
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Friday, May 16, 2008 3:50PM - 4:02PM |
B1.00006: Unifying the Thermodynamic and Colour Temperature Scales with Gall's Black Body Radiation Law Clarence A. Gall The determination of high temperatures (colour temperature) when it is not possible to apply Charles' Law (thermodynamic temperature) is a fundamental problem in scientific measurement. Wien's displacement law $\left( \frac{1}{\lambda _ {m}}=\frac{T}{b}\right) $ has long suggested that the reciprocal wavelength at maximum emitted intensity is directly proportional to and hence is a measure of temperature. However Planck's and all previous distribution laws do not make direct use of the empirical constants $\left( \sigma ,b\right) $ in their formulation. It has not thus been possible to directly relate the wavelength at maximum emitted intensity and the given temperature with the proportionality constant $b$. Gall's distribution law $\left( I_{G}=\sigma \frac{T^{6}}{b^{2}} \lambda e^{-\frac{T}{b}\lambda }\right) $ (BAPS, March Meeting 2007, X21.4, Denver, CO) which treats emission as a decay process, employs these empirical constants directly in its formulation. It satisfies exactly the three empirical laws of black body radiation. It establishes a direct relationship between the wavelength at maximum emitted intensity and the given temperature with Wien's constant $b$. The distribution law can then be reformulated as $\left( I_{G}=\sigma _{G}G^{6} \lambda e^{-G\lambda }\right) $ where $\left( G=\frac{T}{b} =\frac{1}{\lambda _{m}}\right) $ and $\left( \sigma _{G}=b^{4} \sigma \right) $. If the colour temperature is defined as $\frac {1}{\lambda _{m}}$, it becomes identical to the thermodynamic temperature over the entire temperature range. [Preview Abstract] |
Friday, May 16, 2008 4:02PM - 4:14PM |
B1.00007: Experimental Tachyons George Soli In the physics of potential superluminal information transfer, causality is preserved by the experimental identification of the CMB (Cosmic Microwave Background) rest frame, as the preferred inertial frame in which potential superluminal information transfer is isotropic [Rembielinski] (http://arxiv.org/PS\_cache/quant-ph/pdf/0010/0010026v2.pdf). Potential superluminal information transfer is engineered by tunneling through two successive barriers [Olkhovsky] (http://arxiv.org/PS\_cache/quant-ph/pdf/0002/0002022v5.pdf). In our experiment we use two meter wavelength photons tunneling through two water-tank barriers, separated by an air-gap length [Soli] (http://www.siderealdilaton.com/). The data presented in this talk demonstrates that if the air-gap length is adjusted for subluminal information transfer, then the democracy of inertial frames is recovered, and no preferred frame is measured. The one-way subluminal tunneling group velocity of light is shown to be isotropic to accuracy below the CMB rest frame velocity. It has already been argued in the literature that Einstein's special relativity with tachyons predicts the existence of antimatter [Recami] (http://arxiv.org/PS\_cache/arxiv/pdf/0709/0709.2453v1.pdf). We conjecture that the dilaton scalar particle is discovered by any sidereal data producible by this instrument. [Preview Abstract] |
Friday, May 16, 2008 4:14PM - 4:26PM |
B1.00008: Copenhagen Orthodoxy, or are Naturoptics{\texttrademark} and Quantum Mechanics truly Bedmates? Roger McLeod Naturoptics{\texttrademark} has its genesis in Mc Leod's focal surface detection by rods and cones of the electric field representation of diffraction patterns as spatial Fourier transformations, SFT, of object brightness information. Observing dark, incorrectly called illusory diagonals of any Hermann grid may require returning to Schr\"{o}dinger's original, nearly correct, but incomplete, interpretation that the electron is equivalent to the wave solution of his equation/law. The pincushion grid generates physical and light diagonals, as anthropomorphized in nature. Distinguishing between the equivalent negative and positive eigenvector distributions that give rise to the cited phenomena, contradict intensity models for vision, and also contradicts Q M's supposed inability to distinguish opposed vectors as observables; vision's electric field information along corresponding diagonals, as opposing vectors matching the phenomena, do not have precisely the same observable consequences as required by Q M. The transformation equation of Q M metamorphoses as the SFT in Mc Leod's verifiable/verified and now patented Naturoptics for safe recovery of vision{\texttrademark}. [Preview Abstract] |
Friday, May 16, 2008 4:26PM - 4:38PM |
B1.00009: String Electron and Three-ring Quarked Nucleons' Transverse Interlocks Build Atoms, Vindicate Schr\"{o}dinger David McLeod, Roger David McLeod Flatland electron loop strings have transversely vibrating neutrino strings. Traveling waves TWs alternately become upwardly deflecting standing waves SWs along each half-wave segment between non-vibrating node pairs. Descending SWs revert to TWs at flatland, proceeding to the next adjacent nodal pair; folding continues. New SWs descend, then ascend; repetition follows to a three dimensional object. Broken ``linear'' electron string and spring constant compress within stars so linear mass density allows incorporation into stable three-ring proton string, creating neutron of two down quarks, one up. It is unstable; it lacks overpass-underpass interlocks of proton that merged linear charge density of two up quarks and one down quark with the electron, becoming neutral. Any transversely aligned neutron notch pushed into acceptor notch of proton is ionized deuterium; tritium follows. Alpha particle is a stable ``tic-tac-toe'' grid. Atom building proceeds routinely, nucleon attachment follows chemical and physical property requirements. Models require vindication of Schr\"{o}dinger's actual, but incomplete, wave model of electron with physical extent over his wave, and question Heisenberg's uncertainty proposal. [Preview Abstract] |
Friday, May 16, 2008 4:38PM - 4:50PM |
B1.00010: Directors of Naturoptics for Safe Recovery of Vision{\texttrademark}, Inc. Release Patented Process to Awardees for their Personal Use and Mentored Teaching of the Process Paul J. Giordano, N.D., D.C., Roger David McLeod The Board of Directors of Naturoptics for Safe Recovery of Vision{\texttrademark}, Inc., US Patent Office, trademark issued, patent issue date April 8, 2008, has granted ``The David Matthew Mc Leod Memorial Award,'' to named individuals. Naturoptics{\texttrademark} teaching earnings by recipients are to be disbursed according to agreed percentages to named academic entities and to the awardees. When awardees sign non-disclosure agreements, they are shown why the process is safe. They are also taught that no diagnostic or treatment techniques are used, necessary or allowed for the processes. This is an educational consultation that explains how Naturoptics{\texttrademark} inventor, Roger David Mc Leod, safely and rapidly recovered his vision. The now patented processes as taught is released for the use of those awardees that sign agreements that they were merely provided a teaching service, and will only be doing educational consulting for their clients. Such clients must follow similar procedures. Other equivalent work-study grants are named ``The Kaan Balam Matagamon Memorial Award,'' also in memory of DMM. The American Indians in Science and Engineering Society may also be participating. [Preview Abstract] |
Friday, May 16, 2008 4:50PM - 5:02PM |
B1.00011: Can Naturoptics, Inc. Provide Self-funding Mentored Awards for Students, Research, Athletics, Schools, and Minority use of Natural Medicine Protocols? Thomas Sampson, Roger David McLeod Naturoptics, Inc. is issuing awards nurturing causes that its late officer and board member David Matthew Mc Leod had actively participated in until his death. The patented property ``Naturopathic method for recovery of healthy vision'' has been directed entirely toward activities indicated, with all proceeds currently going to awardees and academic entities for stated purposes. The process includes mentoring and teaching awardees their impaired vision can be quickly reversed by reengaging self-repairing feedback control features that visual abuse had thwarted. Various percentages are allotted to different stages of mentored student progression; remainders will initially be directed to mutually agreed academic entities' needs, with scholarship funding a top priority. Some activity involving research into natural tornado and earthquake events is hoped for, along with foundational questions in physics. Present board members hope that benefit to participating institutions and individuals can be brought to levels over {\$}100,000 per year; hoped-for final benefits being allowed to proceed to at least ten times that. The process/method competes with billion dollar a year industries. [Preview Abstract] |
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