Zobrazeno 1 - 10
of 52
pro vyhledávání: '"Joseph B. Herzog"'
Publikováno v:
Nanomaterials, Vol 8, Iss 10, p 809 (2018)
We propose and report on the design of a 1-D metallo-dielectric nano-grating on a GaAs substrate. We numerically study the impact of grating period, slit and wire widths, and irradiating angle of incidence on the optical response. The optimal wire wi
Externí odkaz:
https://doaj.org/article/97243575d1e44211b5f9204e08c0d0c7
Autor:
Christopher M. Klenke, Zachary T. Brawley, Stephen J. Bauman, Ahmad A. Darweesh, Desalegn T. Debu, Joseph B. Herzog
Publikováno v:
Data, Vol 3, Iss 3, p 37 (2018)
Surface-enhanced Raman spectroscopy (SERS) improves the scope and power of Raman spectroscopy by taking advantage of plasmonic nanostructures, which have the potential to enhance Raman signal strength by several orders of magnitude, which can allow f
Externí odkaz:
https://doaj.org/article/febbf6db02bd4fdf9b57eca429768bae
Autor:
Zachary T. Brawley, Stephen J. Bauman, Ahmad A. Darweesh, Desalegn T. Debu, Faezeh Tork Ladani, Joseph B. Herzog
Publikováno v:
Materials, Vol 11, Iss 6, p 942 (2018)
This work studies the effect of a plasmonic array structure coupled with thin film oxide substrate layers on optical surface enhancement using a finite element method. Previous results have shown that as the nanowire spacing increases in the sub-100
Externí odkaz:
https://doaj.org/article/d77aa670d9ad463c9d8bb9d77bbdc718
Autor:
Stephen J. Bauman, Ahmad A. Darweesh, Miles Furr, Meredith Magee, Christos Argyropoulos, Joseph B. Herzog
Publikováno v:
ACS Applied Materials & Interfaces. 14:15541-15548
Raman sensing is a powerful technique for detecting chemical signatures, especially when combined with optical enhancement techniques such as using substrates containing plasmonic nanostructures. In this work, we successfully demonstrated surface-enh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e9c1f1b9fa1d3f3e8241a1af15c586dc
https://doi.org/10.1021/acsami.2c01335
https://doi.org/10.1021/acsami.2c01335
Publikováno v:
Journal of Nanophotonics. 15
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6a4b025ba7e5947ef481a291ffd3bf82
https://doi.org/10.1117/1.jnp.15.046005
https://doi.org/10.1117/1.jnp.15.046005
Autor:
Greg Salamo, Mourad Benamara, Joseph B. Herzog, Desalegn T. Debu, Pijush K. Ghosh, Qigeng Yan, Morgan E. Ware
Publikováno v:
Materials Letters. 247:131-134
Bullseye nanostructures with different central disk diameters and numbers of concentric rings have been fabricated in Au/Ag metallic films on glass substrates by focused ion beam milling. The Au/Ag bimetallic nanoresonator is expected to provide chem
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04027c4ce634df0667e14d97d39bb127
https://doi.org/10.1016/j.matlet.2019.03.079
https://doi.org/10.1016/j.matlet.2019.03.079
Autor:
Joseph B. Herzog, Ahmad A. Darweesh
Publikováno v:
Biophotonics Congress 2021.
A nanoring-nanodisk plasmonic structure with a fixed gap space has been designed and simulated. Local optical enhancement was calculated for different nanoring-nanodisk radius. Such enhancement can improve SERS and the plasmonic biosensor performance
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cf3c21d857d395276cdd3e482452e86b
https://doi.org/10.1364/boda.2021.dtu1a.7
https://doi.org/10.1364/boda.2021.dtu1a.7
Publikováno v:
Plasmonics: Design, Materials, Fabrication, Characterization, and Applications XVIII.
This study explores optical characteristics in quantum dots. CdSe quantum dots samples have been prepared and an optical photoluminescence experimental setup has been created to measure the light emission from the quantum dots as a function of time a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8da9a854dc07511c3bacbf716e63500a
https://doi.org/10.1117/12.2568160
https://doi.org/10.1117/12.2568160
Autor:
Ahmad I. Nusir, Omar Manasreh, Joseph B. Herzog, David French, Stephen J. Bauman, Ahmad A. Darweesh
Publikováno v:
Journal of Lightwave Technology. 36:2430-2434
This work studies how the local current density in a metal–semiconductor–metal photodetector (MSM PD) corresponds to the plasmonic enhancement and therefore affects the overall enhancement of the device. For this type of semiconductor photodetect
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e2230e90a1ba2ff116f22365dcf008d9
https://doi.org/10.1109/jlt.2018.2811749
https://doi.org/10.1109/jlt.2018.2811749
Autor:
Christopher M. Stanley, Patricia Snell Herzog, George D. Ricco, Paul Talaga, Joseph B. Herzog
Publikováno v:
FIE
This Research-to-Practice Work in Progress (WIP) investigates the format of student assessment questions. In particular, the focus is on the relationship between student performance on open-ended, constructed-response questions (CRQs) versus close-en
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15d5cd6b12fe0f3139c70a00307b0572
https://doi.org/10.1109/fie43999.2019.9028548
https://doi.org/10.1109/fie43999.2019.9028548