Results 11 to 20 of about 329,980 (240)

Review: An Optical Surface Probe by Reflectance Anisotropy Spectroscopy [PDF]

open access: yesHittite Journal of Science and Engineering, 2019
Rface and interface information. RAS measures the difference in reflectance of light eflectance anisotropy spectroscopy RAS is an optical technique to produce surlinearly polarised along two orthogonal axes in the surface at near normal incidence as ...
Orhan Zeybek
doaj   +2 more sources

Quantifying the Reflectance Anisotropy Effect on Albedo Retrieval from Remotely Sensed Observations Using Archetypal BRDFs

open access: yesRemote Sensing, 2018
The reflectance anisotropy effect on albedo retrieval was evaluated using the Moderate Resolution Imaging Spectroradiometer (MODIS) bidirectional reflectance distribution functions (BRDFs) product, and archetypal BRDFs.
Hu Zhang   +7 more
doaj   +2 more sources

Reflectance anisotropy of Gd5Si2Ge2 and Tb5Si2.2Ge1.8 [PDF]

open access: yesApplied Physics Letters, 2004
Reflectance difference (RD) spectra for the a–b plane of the single crystals of Gd5Si2Ge2 and b–c planes of Gd5Si2Ge2 and Tb5Si2.2Ge1.8 were obtained in the photon energy range of 1.5–5.5 eV. Several peaks were observed for these crystals in the measured spectrum range.
Lee, S. J.   +7 more
openaire   +5 more sources

Polarimeters for the Detection of Anisotropy from Reflectance

open access: yesMicromachines
Polarimetry is used to determine the Stokes parameters of a laser beam. Once all four S0,1,2,3 parameters are determined, the state of polarisation is established.
Shuji Kamegaki   +9 more
doaj   +3 more sources

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

open access: yesChemosensors
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   +7 more
doaj   +2 more sources

Spin models with random anisotropy and reflection symmetry [PDF]

open access: yesPhysical Review E, 2004
We study the critical behavior of a general class of cubic-symmetric spin systems in which disorder preserves the reflection symmetry $s_a\to -s_a$, $s_b\to s_b$ for $b\not= a$. This includes spin models in the presence of random cubic-symmetric anisotropy with probability distribution vanishing outside the lattice axes. Using nonperturbative arguments
Calabrese, Pasquale   +2 more
openaire   +4 more sources

Reflectance anisotropy spectra of Cu and Ag(110) surfaces from ab initio theory - art. no. 115421

open access: yes, 2001
Reflectance anisotropy spectra of Cu and Ag (110) surfaces are obtained by ab initio calculations. We disentangle the effects of the intraband and interband parts of the bulk dielectric function in the spectra, splitting them further into components ...
Del, Sole R   +4 more
core   +6 more sources

Free-electron response in reflectance anisotropy spectra [PDF]

open access: yesPhysical Review B, 2006
Received 28 March 2006; revised manuscript received 3 October 2006; published 27 November 2006Reflectance anisotropy spectra RAS , extended into the near infrared spectral region, of anisotropic metalislands, metal surfaces, and atomic nanowires are analyzed with respect to anisotropies in the optical responseof the free-electron gas of such low ...
K. Fleischer   +5 more
openaire   +3 more sources

Extending the GOSAILT Model to Simulate Sparse Woodland Bi-Directional Reflectance with Soil Reflectance Anisotropy Consideration

open access: yesRemote Sensing, 2022
Anisotropic canopy reflectance plays a crucial role in estimating vegetation biophysical parameters, whereas soil reflectance anisotropy affects canopy reflectance.
Juan Cheng   +5 more
doaj   +1 more source

Changes in reflectance anisotropy of wheat crop during different phenophases [PDF]

open access: yes, 2017
The canopy structure of wheat changes significantly with growth stages and leads to changes in reflectance anisotropy. Bidirectional reflectance distribution function characterises the reflectance anisotropy of the targets, which can be approximated ...
Manoj M. Lunagaria   +3 more
core   +1 more source

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