UNT Scholarly Works - 387 Matching Results

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Coupling of Surface Plasmon Polariton in Al-Doped ZnO with Fabry-Pérot Resonance for Total Light Absorption

Description: This article presents finite-difference time-domain (FDTD) simulations on total light absorption (TLA) resulting from the coupling of a surface plasmon polariton (SPP) with Fabry-Pérot (F-P) resonance in a three-layer structure consisting of an AZO square lattice hole array, a spacer, and a layer of silver.
Date: April 27, 2017
Creator: George, David; Adewole, Murthada; Hassan, Safaa; Lowell, David; Cui, Jingbiao; Zhang, Hualiang et al.
Partner: UNT College of Arts and Sciences

Radio-frequency actuated polymer-based phononic meta-materials for control of ultrasonic waves

Description: This article describes the achievement of radio-frequency control of a n ultrasonic phononic crystal by encapsulating it in a composite of high k-10% KF-doped BaTiO₃ dielectric nanoparticles with poly(N-isopropylacrylamide) (PNIP Am)-based hydrogel.
Date: July 14, 2016
Creator: Walker, Ezekiel; Wang, Zhiming & Neogi, Arup
Partner: UNT College of Arts and Sciences

A new, faint population of X-ray transients

Description: This article reports on the detection of a remarkable new fast high-energy transient found in the Chandra Deep Field-South, robustly associated with a faint host in the CANDELS survey.
Date: February 15, 2017
Creator: Bauer, Franz E.; Treister, Ezequiel; Schawinski, K.; Schulze, S.; Luo, Bin; Alexander, David M. et al.
Partner: UNT College of Arts and Sciences

ALMA Observations Show Major Mergers Among the Host Galaxies of Fast-growing, High-redshift, Supermassive Black Holes

Description: This article presents new ALMA band-7 data for a sample of six luminous quasars at z ≃ 4.8, powered by fast-growing supermassive black holes (SMBHs) with rather uniform properties.
Date: February 3, 2017
Creator: Trakhtenbrot, Benny; Lira, Paulina; Netzer, Hagai; Cicone, Claudia; Maiolino, Roberto & Shemmer, Ohad
Partner: UNT College of Arts and Sciences

Long-Term X-Ray Variability of Typical Active Galactic Nuclei in the Distant Universe

Description: This article discusses the long-term (≈15 years, observed frame) X-ray variability analyses of the 68 brightest radio-quiet active galactic nuclei (AGNs) in the 6 Ms Chandra Deep Field-South survey.
Date: November 3, 2016
Creator: Yang, G.; Brandt, William Nielsen; Luo, Bin; Xue, Yongquan; Bauer, Franz E.; Sun, M. et al.
Partner: UNT College of Arts and Sciences

Effects of light on the resistivity of chemical vapor deposited graphene films

Description: This article reports that the resistance of a chemical vapor deposition (CVD) grown graphene film transferred onto an SiO₂ substrate increases to higher saturation values upon exposure to light of decreasing wavelength from the visible to ultraviolet.
Date: October 24, 2016
Creator: Mo, Yudong; Pérez, José M.; Ye, Zhou; Zhao, Lei; Yang, Shizhong; Tan, Liuxi et al.
Partner: UNT College of Arts and Sciences

Laser Ablated Carbon Nanodots for Light Emission

Description: This article reports the synthesis of fluorescent carbon dots-like nanostructures obtained through the laser ablation of a carbon solid target in liquid environment is reported.
Date: September 22, 2016
Creator: Reyes, Delfino; Camacho, Marco; Camacho, Miguel; Mayorga, Miguel; Weathers, Duncan L.; Salamo, Greg et al.
Partner: UNT College of Arts and Sciences

The deepest X-ray view of high-redshift galaxies: constraints on low-rate black hole accretion

Description: This article exploits the 7 Ms Chandra observations in the Chandra Deep Field-South (CDF-S), the deepest X-ray survey to date, coupled with CANDELS/GOODS-S data, to measure the total X-ray emission arising from 2076 galaxies at 3.5 ≤ z ≤ 6.5.
Date: August 5, 2016
Creator: Vito, F.; Gilli, Roberto; Vignali, Christian; Brandt, William Nielsen; Comastri, Andrea; Yang, G. et al.
Partner: UNT College of Arts and Sciences

Ergodicity breaking and localization

Description: This article studies the joint action of the non-Poisson renewal events (NPR) yielding Continuous-time random walk (CTRW) with index α < 1 and two different generators of Hurst coefficient H ≠ 0.5, one generating fractional Brownian motion (FBM) and another scaled Brownian motion (SBM).
Date: July 25, 2016
Creator: Geneston, Elvis L.; Tuladhar, Rohisha; Beig, Mirza Tanweer A.; Bologna, Mauro & Grigolini, Paolo
Partner: UNT College of Arts and Sciences

Flexible Holographic Fabrication of 3D Photonic Crystal Templates with Polarization Control through a 3D Printed Reflective Optical Element

Description: This article systematically studies the holographic fabrication of three-dimensional (3D) structures using a single 3D printed reflective optical element (ROE), taking advantage of the ease of design and 3D printing of the ROE.
Date: July 21, 2016
Creator: Lowell, David; George, David; Lutkenhaus, Jeffrey; Tian, Chris; Adewole, Murthada; Zhang, Hualiang et al.
Partner: UNT College of Arts and Sciences

Metallic Nanodroplet Induced Coulomb Catalysis for Off-Resonant Plasmonic Enhancement of Photoemission in Semiconductors

Description: This article reports a new mechanism based on electrostatic interactions of carriers and their image charges in metals to generate more photons from optical sources at frequencies that are off-resonant to the localized plasmon frequency.
Date: April 8, 2016
Creator: Neogi, Arup; Grycznski, Karol G.; Llopis, A.; Lin, Jie; Main, Kyle; Shimada, Ryoko et al.
Partner: UNT College of Arts and Sciences

The Evolution of Normal Galaxy X-Ray Emission Through Cosmic History: Constraints from the 6 Ms Chandra Deep Field-South

Description: This article presents measurements of the evolution of normal-galaxy X-ray emission from z ≈ 0-7 using local galaxies and galaxy samples in the ≈6 Ms Chandra Deep Field-South (CDF-S) survey.
Date: June 24, 2016
Creator: Lehmer, Bret; Basu-Zych, A.; Mineo, S.; Brandt, William Nielsen; Eufrasio, R. T.; Fragos, T. et al.
Partner: UNT College of Arts and Sciences

Holographic Fabrication of Designed Functional Defect Lines in Photonic Crystal Lattice Using a Spatial Light Modulator

Description: This article reports the holographic fabrication of designed defect lines in photonic crystal lattices through phase engineering using a spatial light modulator.
Date: April 1, 2016
Creator: Lutkenhaus, Jeffrey; Lowell, David; George, David; Zhang, Hualiang; Lin, Yuankun & Lin, Yuankun
Partner: UNT College of Arts and Sciences

Ion exchanger in the brain: Quantitative analysis of perineuronally fixed anionic binding sites suggests diffusion barriers with ion sorting properties

Description: 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.
Partner: UNT College of Arts and Sciences