Results 231 to 240 of about 14,554 (282)
Polarizable dipole models for reflectance anisotropy spectroscopy: a review
Journal of Physics: Condensed Matter, 2004 We present a review of the formalism and application of polarizable dipole models that have been used to calculate reflectance anisotropy spectra of semiconductor and metal surfaces and thin organic films.
N. Arzate +2 more
openalex +2 more sources
Some of the next articles are maybe not open access.
Related searches:
Related searches:
Real-time reflectance anisotropy spectroscopy of GaAs homoepitaxy
Applied Optics, 2020Reflectance anisotropy spectroscopy (RAS) is a highly sensitive optical probe for the real-time study of the epitaxial growth of zincblende semiconductors. Here we report on (1) non-equilibrium RAS spectra acquired in real time during the homoepitaxial growth of GaAs, and (2) RAS spectra for GaAs surfaces under equilibrium with several arsenic ...
A, Lastras-Martínez +10 more
openaire +2 more sources
Reflection anisotropy spectroscopy
Reports on Progress in Physics, 2005Reflection anisotropy spectroscopy (RAS) is a non-destructive optical probe of surfaces that is capable of operation within a wide range of environments. In this review we trace the development of RAS from its origins in the 1980s as a probe of semiconductor surfaces and semiconductor growth through to the present where it is emerging as a powerful ...
P Weightman +3 more
openaire +1 more source
Surface Review and Letters, 1999
The development and the state of the art of surface methods based on the reflection of light are briefly reviewed. A short account is given of the main experimental and theoretical results obtained on semiconductor surfaces over about three decades.
CHIARADIA, PIETRO, DEL SOLE, RODOLFO
openaire +2 more sources
The development and the state of the art of surface methods based on the reflection of light are briefly reviewed. A short account is given of the main experimental and theoretical results obtained on semiconductor surfaces over about three decades.
CHIARADIA, PIETRO, DEL SOLE, RODOLFO
openaire +2 more sources
Azimuth-dependent reflection anisotropy spectroscopy
Journal of Applied Physics, 2003A detailed explanation of “azimuth dependent reflection anisotropy spectroscopy” (ADRAS) [B. F. Macdonald and R. J. Cole, Appl. Phys. Lett. 80, 3527 (2002)] is presented. Experimental data and simulations are used to illustrate the greater information content of ADRAS compared to the standard reflection anisotropy technique. The application of ADRAS to
B. F. Macdonald, J. S. Law, R. J. Cole
openaire +1 more source
Separation of optical anisotropies by angular dependent reflection anisotropy spectroscopy
Applied Physics Letters, 2002Double rubbing of polymer films, which finds applications in modern liquid crystal devices, has been investigated using reflection anisotropy spectroscopy (RAS) and atomic force microscopy. A method of gauging the relative strength of rubbing in two different directions, based upon the dependence of observed RAS signals on the sample azimuthal angle ...
B. F. Macdonald, R. J. Cole
openaire +1 more source
Molecular orientation studied by reflection anisotropy spectroscopy
physica status solidi (b), 2010AbstractA description of the reflection anisotropy spectroscopy (RAS) results from oriented thin films is presented. The RAS signals of a 1 nm thick film are simulated to investigate the effect of molecular tilt on the RAS response of the system. Whilst the spectroscopic measurements themselves appear to be relatively insensitive to the effects of the ...
P. D. Lane, G. E. Isted, R. J. Cole
openaire +1 more source
Reflection anisotropy spectroscopy of the oxidized diamond (001) surface
Journal of Physics: Condensed Matter, 2009We report reflection anisotropy spectroscopy (RAS) measurements of the oxidized (001) surface of a type IIb natural diamond. These measurements were made possible due to recent developments in diamond surface preparation. We compare RAS results from the hydrogenated, clean and oxidized C(001) surface and demonstrate that RAS is sensitive to the ...
M, Schwitters +5 more
openaire +2 more sources
Sum rules in surface differential reflectivity and reflectance anisotropy spectroscopies
Applied Surface Science, 2001Abstract The sum rule for the imaginary part of the dielectric function e″ can help in discriminating surface and bulk-related optical transitions, by means of the number of electrons taking part in the transitions. This is particularly simple in the region below the main critical points of the bulk band structure (below 3.5 eV for Si, below 2.2 eV ...
G Chiarotti +3 more
openaire +1 more source
The optical anisotropy of Pt(100) studied by reflection anisotropy spectroscopy
Physica Status Solidi (a), 1995The optical anisotropy of the Pt(100) hex-R0.7° reconstructed phase is studied with reflection anisotropy spectroscopy. The transition from the hex-R0.7° to the Pt(1 x 1) structure is also studied. The spectrum of Pt(100) hex-R0.7° is found to be dominated by surface polariton-like absorption due to the wavy nature of the first layer superstructure ...
A. Borg +4 more
openaire +1 more source