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Extraordinary Light-Trapping Enhancement in Silicon Solar Cell Patterned with Graded Photonic Super-Crystals
This article explores light-trapping enhancement in newly discovered graded photonic super-crystals (GPSCs) with dual periodicity and dual basis.
Date:
December 7, 2017
Creator:
Hassan, Safaa; Lowell, David; Adewole, Murthada; George, David; Zhang, Hualiang & Lin, Yuankun
Object Type:
Article
System:
The UNT Digital Library
Quantum Irreversibility and Chaos [Phys. Rev. Lett. 67, 2593 (1991)]
Corrections to an equation printed with a typographical error in Quantum Irreversibility and Chaos, Physical Review Letters 67, 2593 (1991).
Date:
December 23, 1991
Creator:
Bonci, Luca; Roncaglia, Roberto; West, Bruce J. & Grigolini, Paolo
Object Type:
Article
System:
The UNT Digital Library
O(N) real-space method for ab initio quantum transport calculations: Application to carbon nanotube - metal contacts
Article on O(N) real-space method for ab initio quantum transport calculations and application to carbon nanotube-metal contacts.
Date:
December 10, 2001
Creator:
Buongiorno Nardelli, Marco; Fattebert, Jean-luc & Bernholc, Jerry
Object Type:
Article
System:
The UNT Digital Library
Mechanical deformations and coherent transport in carbon nanotubes
Article on mechanical deformations and coherent transport in carbon nanotubes.
Date:
December 15, 1999
Creator:
Buongiorno Nardelli, Marco & Bernholc, Jerry
Object Type:
Article
System:
The UNT Digital Library
Conflict between trajectories and density description: the statistical source of disagreement
Paper discussing the statistical source of disagreement between trajectories and density description.
Date:
December 2002
Creator:
Allegrini, Paolo; Grigolini, Paolo; Palatella, Luigi & Rosa, Angelo
Object Type:
Paper
System:
The UNT Digital Library
Intraocular Pressure Changes: An Important Determinant of the Biocompatibility of Intravitreous Implants
Article discussing intraocular pressure changes and an important determinant of the biocompatibility of intravitreous implants.
Date:
December 14, 2011
Creator:
Zou, Ling; Nair, Ashwin; Weng, Hong; Tsai, Yi-Ting; Hu, Zhibing & Tang, Liping
Object Type:
Article
System:
The UNT Digital Library
Infrared-Microwave Double Resonance Probing of the Population-Depopulation of Rotational States in the NO₂ and the SO₂ Molecules
A 10.6 ym C02 laser operating a power range S P 200 watts was used to pump some select vibrational transitions in the NO2 molecule while monitoring the rotational transitions (91/9—'100/10), (232f 22 ~~"*242,23> ' (402,38 "393,37) in the (0, 0, 0) vibrational level and the (8q,8—*"^1,7) rotational transition in the (0, 1, 0) vibrational level. These rotational transitions were monitored by microwave probing to determine how the population of states in the rotational manifolds were being altered by the laser. Coincidences between some components of the V3-V2 band of N02 and the C02 infrared laser lines in the 10 um region appeared to be responsible for the strong interaction between the continuous laser beams and the molecular states.
Date:
December 1982
Creator:
Khoobehi, Bahram
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
A Gauge-Invariant Energy Variational Principle Application to Anisotropic Excitons in High Magnetic Fields
A new method is developed for treating atoms and molecules in a magnetic field in a gauge-invariant way using the Rayleigh-Ritz energy variational principle. The energy operator depends on the vector potential which must be chosen in some gauge. In order to adapt the trial wave function to the gauge of the vector potential, the trial wave function can be multiplied by a phase factor which depends on the spatial coordinates. When the energy expectation value is minimized with respect to the phase function, the equation for charge conservation for stationary states is obtained. This equation can be solved for the phase function, and the solution used in the energy expectation value to obtain a gauge-invariant energy. The method is applicable to all quantum mechanical systems for which the variational principle can be applied. It ensures satisfaction of the charge conservation condition, a gauge-invariant energy, and the best upper bound to the ground-state energy which can be obtained for the form of trial wave function chosen.
Date:
December 1983
Creator:
Kennedy, Paul K. (Paul Kevin)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
Picosecond Laser-Induced Transient Gratings and Anisotropic State-Filling in Germanium
We present a comparative theoretical study of the transient grating coherent effects in resonant picosecond excitation-probe experiments. Signals in both the probe and conjugate directions are discussed. The effects of recombination, non-radiative scattering and spatial and orientational diffusion are included. The analysis is applied to both a molecular and to a semiconductor model. Signal contributions from concentration and orientational gratings are distinguished and their temporal natures discussed. The theory is used to explain our recent observations in germanium. Included are discussions of picosecond transient grating self-diffraction measurements that can be understood in terms of an orientational grating produced by anisotropic (in k-space) state-filling. Though there have been predictions and indirect experimental evidence for isotropic state-filling in germanium, this is the first direct experimental indication of anisotropic state-filling in a semiconductor.
Date:
December 1982
Creator:
Boggess, Thomas F. (Thomas Frederick)
Object Type:
Thesis or Dissertation
System:
The UNT Digital Library
The Lack of Torus Emission from BL Lacertae Objects: An Infrared View of Unification with WISE
This article uses data from the Wide-Field Infrared Survey Explorer to perform a statistical study on the mid-infrared properties of a large number of BL Lac objects.
Date:
December 21, 2011
Creator:
Plotkin, Richard M.; Anderson, Scott F.; Brandt, William Nielsen; Markoff, Sera; Shemmer, Ohad & Wu, Jianfeng
Object Type:
Article
System:
The UNT Digital Library
FAUST observations of ultraviolet sources in the directions of NGC 4038-39 and 6752
This article discusses an analysis of ultraviolet observations with the FAUST shuttle-borne telescope toward the Antennae and NGC 6752 celestial regions resulting in the detection of 46 and 221 candidate sources respectively, for a signal-to-noise ratio of 8.
Date:
December 29, 2000
Creator:
Daniels, Julian; Brosch, Noah; Almoznino, Elchanan; Shemmer, Ohad; Bowyer, Stuart & Lampton, Michael
Object Type:
Article
System:
The UNT Digital Library
Ion exchanger in the brain: Quantitative analysis of perineuronally fixed anionic binding sites suggests diffusion barriers with ion sorting properties
This article proposes that fixed charge-densities in the brain are involved in regulating ion mobility, the volume fraction of extracellular space and the viscosity of matrix components.
Date:
December 1, 2015
Creator:
Morawski, Markus; Reinert, Tilo; Meyer-Klaucke, Wolfram; Wagner, Friedrich E.; Tröger, Wolfgang; Reinert, Anja et al.
Object Type:
Article
System:
The UNT Digital Library
Lévy diffusion as an effect of sporadic randomness
This article discusses Lévy diffusion as an effect of sporadic randomness.
Date:
December 1999
Creator:
Bologna, Mauro; Grigolini, Paolo & Riccardi, Juri
Object Type:
Article
System:
The UNT Digital Library
Substrate-Mediated Intermolecular Hybridization in Binary Phthalocyanine Superstructures
Article on substrate-mediated intermolecular hybridization in binary phthalocyanine superstructures.
Date:
December 29, 2009
Creator:
Calzolari, Arrigo; Jin, Wei; Reutt-Robey, Janice E. & Buongiorno Nardelli, Marco
Object Type:
Article
System:
The UNT Digital Library
Spatial Decomposition of a Broadband Pulse Caused by Strong Frequency Dispersion of Sound in Acoustic Metamaterial Superlattice
This article uses an acoustic metamaterial superlattice for the spatial and spectral deconvolution of a broadband acoustic pulse into narrowband signals with different central frequencies.
Date:
December 30, 2020
Creator:
Jin, Yuqi; Zubov, Yurii; Yang, Teng; Choi, Tae-Youl; Krokhin, Arkadii A. & Neogi, Arup
Object Type:
Article
System:
The UNT Digital Library
The allometric propagation of COVID-19 is explained by human travel
Article develops an allometric model capable of fitting the initial phase of the COVID-19 pandemic and predicting the propagation of the illness for up to 100 days.
Date:
December 18, 2021
Creator:
Tuladhar, Rohisha; Grigolini, Paolo & Santamaria, Fidel
Object Type:
Article
System:
The UNT Digital Library
A Symmetric Approach Elucidates Multisensory Information Integration
This article shows that the Borsuk-Ulam theorem applies also to multisensory integration: two environmental stimuli from different sensory modalities display similar features when mapped into cortical neurons.
Date:
December 27, 2016
Creator:
Tozzi, Arturo & Peters, James F.
Object Type:
Article
System:
The UNT Digital Library
Plasmonically-powered hot carrier induced modulation of light emission in a two-dimensional GaAs semiconductor quantum well
Article describes an experiment in which a hot-electron-enabled route to controlling light with dissipative loss compensation in semiconductor quantum light emitters has been realized for tunable quantum optoelectronic devices via a two-species plasmon system.
Date:
December 10, 2018
Creator:
Ashalley, Eric; Gryczynski, Karol; Wang, Zhiming; Salamo, Gregory & Neogi, Arup
Object Type:
Article
System:
The UNT Digital Library
Renewal and memory origin of anomalous diffusion: A discussion of their joint action
Article on the renewal and memory origin of anomalous diffusion and a discussion of their joint action.
Date:
December 2, 2013
Creator:
Bologna, Mauro; West, Bruce J. & Grigolini, Paolo
Object Type:
Article
System:
The UNT Digital Library
Spontaneous coordinated activity in cultured networks: analysis of multiple ignition sites, primary circuits, and burst phase delay distributions
This article discusses an analysis of multiple ignition sites, primary circuits, and burst phase delay distributions.
Date:
December 8, 2007
Creator:
Ham, Michael I.; Bettencourt, Luis; McDaniel, Floyd Del. (Floyd Delbert), 1942- & Gross, Guenter W.
Object Type:
Article
System:
The UNT Digital Library
Observational Evidence of Quasar Feedback Quenching Star Formation at High Redshift
This Letter to the Editor discusses an observational proof of quasar feedback quenching the star formation at high redshift.
Date:
December 20, 2011
Creator:
Cano-Díaz, Mariana; Maiolino, Roberto; Marconi, Alessandro; Netzer, Hagai; Shemmer, Ohad & Cresci, Giovanni
Object Type:
Article
System:
The UNT Digital Library
Ferromagnetic ZnO Nanowires for Spintronic Applications
This book chapter reviews experimental results of observed room temperature ferromagnetism in transition metal doped group II-VI semiconductors.
Date:
December 19, 2012
Creator:
Philipose, Usha & Sapkota, Gopal
Object Type:
Book Chapter
System:
The UNT Digital Library
Low-energy positron interactions with xenon
This article studies low-energy interactions of positrons with xenon experimentally and theoretically. Results are compared with previous literature.
Date:
December 8, 2011
Creator:
Machacek, J. R.; Makochekanwa, C.; Jones, A.C.L.; Caradonna, P.; Slaughter, D.S.; McEachran, R.P. et al.
Object Type:
Article
System:
The UNT Digital Library
Low-energy vibrations at the InSb(110) surface
Article on low-energy vibrations at the InSb(110) surface along the ΓΥ direction.
Date:
December 15, 1995
Creator:
Buongiorno Nardelli, Marco; Cvetko, D.; De Renzi, V.; Floreano, L.; Morgante, A.; Peloi, M. et al.
Object Type:
Article
System:
The UNT Digital Library