Results 11 to 20 of about 2,982 (265)

Spin-orbit effects on reflectance anisotropy spectroscopy [54]

Physical Review B, 2004
We study the effects of the spin-orbit coupling on the reflectance anisotropy spectroscopy of semiconductor surfaces. A microscopic formulation based on a semi-empirical tight binding approach which includes spin-orbit interaction is used and theoretical
Vazquez-Nava, R.A., Castillo, C., Mendoza, B.S.   +2 more
core   +2 more sources

In Situ Optical Monitoring and Morphological Evolution of Si Nanowires Grown on Faceted Al₂O₃(0001) Substrates [PDF]

Nanomaterials
This paper presents the growth and in situ optical characterization of silicon nanowires (Si NWs) on Al2O3(0001) substrates that are thermally faceted using the atomic low angle shadowing technique (ATLAS) method. Annealing Al2O3 substrates in air before
Olzat Toktarbaiuly, Mergen Zhazitov, Muhammad Abdullah, Yerbolat Tezekbay, Nazerke Kydyrbay, Nurxat Nuraje, Tolagay Duisebayev   +6 more
doaj   +2 more sources

Polarized optical contrast spectroscopy of in plane anisotropic van der Waals materials [PDF]

Scientific Reports
Polarized optical contrast spectroscopy is a simple and non-destructive approach to characterize the crystalline anisotropy and orientation of two-dimensional materials.
Ernst Knöckl, Alexandre Bernard, Alexander Holleitner, Christoph Kastl   +3 more
doaj   +2 more sources

In-situ etch-depth control better than 5 nm with reflectance anisotropy spectroscopy (RAS) equipment during reactive ion etching (RIE): A technical RAS application

AIP Advances, 2019
A measurement technique, i.e. reflectance anisotropy/difference spectroscopy (RAS/RDS), which had originally been developed for in-situ epitaxial growth control, is employed here for in-situ real-time etch-depth control during reactive ion etching (RIE ...
Christoph Doering, Johannes Strassner, Henning Fouckhardt   +2 more
doaj   +2 more sources

Optical anisotropy of pristine and reduced V2O5(010) [PDF]

Scientific Reports
The optical anisotropy of pristine and reduced single crystalline (010) orientated $$\hbox {V}_{2}\hbox {O}_{5}$$ is presented. The reduction of $$\hbox {V}_{2}\hbox {O}_{5}$$ is complex due to the abundance of V-O phases, strong dependence on the ...
Brian Walls, Oisín Murtagh, Chris M. Smith, Daragh Mullarkey, Dmitry Shulyatev, Karsten Fleischer, Ainur Zhussupbekova, Igor V. Shvets   +7 more
doaj   +2 more sources

A reflectance anisotropy spectroscopy investigation of porphyrin langmuir-blodgett films

physica status solidi (a), 2001
Until now, with a few exceptions, Reflectance Anisotropy Spectroscopy (RAS) has been applied mostly to inorganic semiconductors and metals, proving to be a powerful tool to investigate their optical properties, via anisotropies introduced by the surface ...
Goletti, C, Chiaradia, P, BUSSETTI, GIANLORENZO, PAOLESSE, ROBERTO, Mazzone, E, CHIARADIA, PIETRO, D'Amico, A, D'Amico, A., Bussetti, G, DI NATALE, CORRADO, Paolesse, R, Natale, C. D. I., GOLETTI, CLAUDIO, D'AMICO, ARNALDO, Di_Natale, C   +14 more
core   +4 more sources

Circular Dichroism Reflectance Anisotropy of Chiral Atomically Thin Films [PDF]

Chemosensors
Recently, a technical modification of a Reflectance Anisotropy Spectroscopy (RAS) spectrometer has been proposed to investigate the circular dichroism (CD) of samples instead of the normally studied linear dichroism. CD-RAS measures the anisotropy of the
Ilaria Tomei, Filippo Pierucci, Beatrice Bonanni, Anna Sgarlata, Massimo Fanfoni, Seong-Jun Yang, Cheol-Joo Kim, Claudio Goletti   +7 more
doaj   +2 more sources

Use of reflectance anisotropy spectroscopy for mapping the anisotropy of lyotropic liquid crystal dispersions in formulations

Liquid Crystals Today, 2016
Lyotropic liquid crystal dispersions have commercial importance in the formulation of cleaning products and pharmaceuticals. The anisotropy of such dispersions is an important aspect of their properties and a simple method for measurement would be ...
Kenneth L Rabone, C I Smith, P Weightman   +2 more
exaly   +2 more sources

Adsorbate azimuthal orientation from reflectance anisotropy spectroscopy

Physical Review Letters, 1998
We have determined the azimuthal orientation of an adsorbate on a metal surface from an intramolecular-transition-derived feature in reflectance anisotropy spectroscopy (RAS).
Cole, RJ, Richardson, Neville Vincent, Frederick, BJ, 5, other, Power, JR   +4 more
core   +2 more sources

Analysis of InAs(001) surfaces by reflectance anisotropy spectroscopy

Physical Review B, 2001
Reflectance anisotropy spectroscopy (RAS) was applied to study the reconstructed surfaces of InAs(001) at room temperature. Arsenic-capped InAs samples, grown by molecular beam epitaxy, were annealed in ultrahigh vacuum.
Goletti, C, Chiaradia, P, ARCIPRETE, FABRIZIO, Richter, W, RICHTER, WOLFGANG, Almaviva, S., Esser, N, Almaviva, S, Arciprete, F, CHIARADIA, PIETRO, Esser, N., GOLETTI, CLAUDIO   +11 more
core   +4 more sources