Results 21 to 30 of about 2,982 (265)

Reflectance anisotropy spectroscopy study of GaAs overlayer growth

Journal of Vacuum Science & Technology B: Microelectronics and Nanometer Structures Processing, Measurement, and Phenomena, 1996
Reflectance anisotropy spectroscopy (RAS) has been employed to characterize the overlayer growth of GaAs onto sub to one monolayer coverages of Si δ layers deposited on the GaAs(001)‐c(4×4) surface.
D. I. Westwood, Woolf, D.A., D. A. Woolf, Westwood, David I., Sobiesierski, Zbigniew, Z. Sobiesierski   +5 more
core   +2 more sources

Impact of Radiometric Variability on Ultra-High Resolution Hyperspectral Imagery Over Aquatic Vegetation: Preliminary Results

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing, 2023
Over the last two decades, advancements in airborne imaging spectroscopy have prompted the exploitation of lightweight drones for detailed vegetation assessment at unprecedented resolutions.
Erika Piaser, Andrea Berton, Rossano Bolpagni, Michele Caccia, Maria Beatrice Castellani, Andrea Coppi, Alice Dalla Vecchia, Francesca Gallivanone, Giovanna Sona, Paolo Villa   +9 more
doaj   +1 more source

Optical Anisotropy of Porphyrin Nanocrystals Modified by the Electrochemical Dissolution

Molecules, 2022
Reflectance anisotropy spectroscopy (RAS) coupled to an electrochemical cell represents a powerful tool to correlate changes in the surface optical anisotropy to changes in the electrochemical currents related to electrochemical reactions.
Rossella Yivlialin, Claudia Filoni, Francesco Goto, Alberto Calloni, Lamberto Duò, Franco Ciccacci, Gianlorenzo Bussetti   +6 more
doaj   +1 more source

Structure and Physical Properties of the LaBiFe2O6 Perovskite Produced by the Modified Pechini Method [PDF]

Materials Research, 2017
In this paper the synthesis of the LaBiFe2O6 material by the modified Pechini method is reported. Structural, morphologic, magnetic and optic experimental studies were performed.
Johny Andrés Jaramillo Palacio, Elixir William Barrera Bello, Julián Andrés Munévar Cagigas, Oscar Arnache, David A. Landínez-Téllez, Jairo Roa-Rojas   +5 more
doaj   +2 more sources

Porphycene Films Grown on Highly Oriented Pyrolytic Graphite: Unveiling Structure–Property Relationship through Combined Reflectance Anisotropy Spectroscopy and Atomic Force Microscopy Investigations

Proceedings, 2021
Thin organic films are widely used in sensors, solar cells, and optical devices due to their intense absorption in the visible/near-infrared (IR) region.
Marta Penconi, Lorenzo Ferraro, Jacek Waluk, Lamberto Duò, Franco Ciccacci, Alberto Bossi, Marcello Campione, Gianlorenzo Bussetti   +7 more
doaj   +1 more source

A research product for tropospheric NO₂ columns from Geostationary Environment Monitoring Spectrometer based on Peking University OMI NO₂ algorithm [PDF]

Atmospheric Measurement Techniques, 2023
Tropospheric vertical column densities (VCDs) of nitrogen dioxide (NO2) retrieved from sun-synchronous satellite instruments have provided abundant NO2 data for environmental studies, but such data are limited by retrieval uncertainties and insufficient ...
Y. Zhang, J. Lin, J. Kim, H. Lee, J. Park, H. Hong, M. Van Roozendael, F. Hendrick, T. Wang, T. Wang, P. Wang, P. Wang, Q. He, K. Qin, Y. Choi, Y. Kanaya, J. Xu, P. Xie, P. Xie, X. Tian, S. Zhang, S. Wang, S. Cheng, X. Cheng, J. Ma, T. Wagner, R. Spurr, L. Chen, H. Kong, M. Liu   +29 more
doaj   +1 more source

In Situ and Real-Time Monitoring of Doping Levels by Reflectance Anisotropy Spectroscopy (RAS) during Molecular Beam Epitaxial (MBE) Growth of III/V Semiconductors

Advances in Materials Science and Engineering, 2023
Reflectance anisotropy/difference spectroscopy (RAS/RDS) had been developed for monitoring epitaxial semiconductor growth, especially for the metal-organic chemical vapor deposition (MOCVD) of III/V semiconductors.
Henning Fouckhardt, Johannes Richter, Christoph Doering, Johannes Strassner   +3 more
doaj   +1 more source

Optical resonances of indium islands on GaAs(001) observed by reflectance anisotropy spectroscopy

, 2021
The optical properties of indium islands on GaAs(001) surfaces have been studied by reflectance anisotropy spectroscopy as a function of metal coverage.
Schintke, Silvia, Frisch, A. M., Röseler, A., Goletti, C., Esser, N., Fimland, B. O.   +5 more
core   +2 more sources

Experimental and Computational Aspects of Electrochemical Reflection Anisotropy Spectroscopy: A Review

ChemElectroChem, 2023
AbstractElectrode/electrolyte interfaces play a crucial role in many electrochemical energy conversion and storage technologies. Hence, a deep understanding of the interfacial structure, energetic alignment and processes is of high relevance and has triggered the development of a number of in situ and operando techniques.
Margot Guidat, Mario Löw, Moritz Kölbach, Jongmin Kim, Matthias M. May   +4 more
openaire   +4 more sources

Reactive Ion Etching (RIE) Induced Surface Roughness Precisely Monitored In-Situ and in Real Time by Reflectance Anisotropy Spectroscopy (RAS) in Combination with Principle Component Analysis (PCA)

Advances in Materials Science and Engineering, 2022
Reactive ion etching (RIE) of group IV or III/V semiconductors is an important step in many lithographic processes in semiconductor technology. Typically, surface roughness is undesired, but more and more applications arise where rough surfaces are used ...
Emerson Oliveira, Johannes Strassner, Christoph Doering, Henning Fouckhardt   +3 more
doaj   +1 more source