Zobrazeno 1 - 10
of 76
pro vyhledávání: '"Usha Philipose"'
Publikováno v:
Materials, Vol 16, Iss 4, p 1534 (2023)
The influence of carbon nanotube (CNT) dispersions on the electrical properties and noise signal amplitude of VOx films is investigated. For a critical range of the CNT dispersion density on VOx films, the intrinsic properties of the VOx films are mo
Externí odkaz:
https://doaj.org/article/51987506f5b548d08446c99e4e521332
Publikováno v:
Photonics, Vol 9, Iss 6, p 395 (2022)
The laser diffraction from periodic structures typically shows isolated and sharp point patterns at zeroth and ±nth orders. Diffraction from 2D graded photonic super-crystals (GPSCs) has demonstrated over 1000 spots due to the fractional diffraction
Externí odkaz:
https://doaj.org/article/d6193ed6e60244a2becadd93f620871e
Autor:
Usha Philipose, Yan Jiang, Brianna Western, Michael Harcrow, Chris Littler, Ashok Sood, John W. Zeller, Bobby Lineberry, A. J. Syllaios
Publikováno v:
Materials, Vol 14, Iss 24, p 7509 (2021)
The electrical impedance characteristics of multi-walled carbon nanotube (MWCNTs) networks were studied as a function of CNT concentrations in the frequency range of 1 kHz–1 MHz. The novelty of this study is that the MWCNTs were not embedded in any
Externí odkaz:
https://doaj.org/article/6d80b516daf948e6bf8e915a05aef302
Autor:
Usha Philipose, Yan Jiang, Gavin Farmer, Chris Howard, Michael Harcrow, Chris Littler, Vincent Lopes, Athanasios J. Syllaios, Ashok Sood, John W. Zeller
Publikováno v:
Nanomaterials, Vol 10, Iss 12, p 2350 (2020)
In this work, we use contrast image processing to estimate the concentration of multi-wall carbon nanotubes (MWCNT) in a given network. The fractal dimension factor (D) of the CNT network that provides an estimate of its geometrical complexity, is de
Externí odkaz:
https://doaj.org/article/b04947d197b04638934b9ab4b78b20d8
Autor:
Safaa Hassan, Yan Jiang, Khadijah Alnasser, Noah Hurley, Hualiang Zhang, Usha Philipose, Yuankun Lin
Publikováno v:
Photonics, Vol 7, Iss 2, p 27 (2020)
For the first time, we are able to generate over 1000 diffraction spots from a graded photonic super-crystal with a unit super-cell size of 12a × 12a where a is the lattice constant and hole radii are gradually changed in dual directions. The diffra
Externí odkaz:
https://doaj.org/article/c7e4d9d8c32943bf82cab20db61316f2
Publikováno v:
Nanomaterials, Vol 8, Iss 8, p 607 (2018)
Although various synthesis and characterization strategies have been employed for the synthesis of crystalline nanowires, there is very little work done on development of low-dimensional amorphous semiconductors. This paper presents a simple strategy
Externí odkaz:
https://doaj.org/article/8a831edc20ae4f0daf731f8e3c036d46
Autor:
David George, Murthada Adewole, Safaa Hassan, David Lowell, Jingbiao Cui, Hualiang Zhang, Usha Philipose, Yuankun Lin
Publikováno v:
Photonics, Vol 4, Iss 2, p 35 (2017)
Al-doped ZnO (AZO) can be used as an electrically tunable plasmonic material in the near infrared range. This paper presents finite-difference time-domain (FDTD) simulations on total light absorption (TLA) resulting from the coupling of a surface pla
Externí odkaz:
https://doaj.org/article/39c3cf31162a47a3b502c0719382972f
Autor:
David Lowell, David George, Jeffrey Lutkenhaus, Chris Tian, Murthada Adewole, Usha Philipose, Hualiang Zhang, Yuankun Lin
Publikováno v:
Micromachines, Vol 7, Iss 7, p 128 (2016)
In this paper, we have systematically studied 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. The reflecti
Externí odkaz:
https://doaj.org/article/9482d72d42f6449db4862c1f3ad69bb8
Autor:
Michael S. Harcrow, Christopher Littler, Usha Philipose, Brianna Western, Vincent C. Lopes, Athanasios J. Syllaios
Publikováno v:
Infrared Sensors, Devices, and Applications XII.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4e6f2167f84b6ed38749fdf28d5fa6e2
https://doi.org/10.1117/12.2632758
https://doi.org/10.1117/12.2632758
Autor:
Arup Neogi, Ibikunle Ojo, Jingbiao Cui, Mihir Khare, Yan Jiang, Brian Squires, Evan Hathaway, Steven Yao, Usha Philipose, Dave Banerjee, Kevin Yao, John D. Femi-Oyetoro, Daniel C. Jones, Jose M. Perez, Gage Marshall, Aryan Agarwal, Ernest Lu
Publikováno v:
MRS Advances. 5:2707-2715
Monolayer (ML) molybdenum disulfide (MoS2) is a novel 2-dimensional (2D) semiconductor whose properties have many applications in devices. Despite its potential, ML MoS2 is limited in its use due to its degradation under exposure to ambient air. Ther
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6d1fd87c0111274e12b77e0efb64f973
https://doi.org/10.1557/adv.2020.292
https://doi.org/10.1557/adv.2020.292