Results 21 to 30 of about 3,439,931 (317)

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

An approach for reflectance anisotropy retrieval from UAV-based oblique photogrammetry hyperspectral imagery

International Journal of Applied Earth Observations and Geoinformation, 2021
Reflectance Anisotropy (RA) contains crucial information about the optical behavior and structure of ground objects and is typically described by the Bidirectional Reflectance Distribution Function (BRDF).
Lei Deng, Yong Chen, Yun Zhao, Lin Zhu, Hui-Li Gong, Li-Jie Guo, Han-Yue Zou   +6 more
doaj   +3 more sources

Accounting for surface reflectance anisotropy in satellite retrievals of tropospheric NO₂ [PDF]

Atmospheric Measurement Techniques, 2010
Surface reflectance is a key parameter in satellite trace gas retrievals in the UV/visible range and in particular for the retrieval of nitrogen dioxide (NO2) vertical tropospheric columns (VTCs).
B. Buchmann, C. Popp, M. Sneep, K. F. Boersma, R. J. D. Spurr, D. Brunner, Y. Zhou   +6 more
doaj   +2 more sources

Retrieving tropospheric nitrogen dioxide from the Ozone Monitoring Instrument: effects of aerosols, surface reflectance anisotropy, and vertical profile of nitrogen dioxide [PDF]

Atmospheric Chemistry and Physics, 2014
Retrievals of tropospheric nitrogen dioxide (NO2) from the Ozone Monitoring Instrument (OMI) are subject to errors in the treatments of aerosols, surface reflectance anisotropy, and vertical profile of NO2.
J.-T. Lin, R. V. Martin, K. F. Boersma, M. Sneep, P. Stammes, R. Spurr, P. Wang, M. Van Roozendael, K. Clémer, H. Irie   +9 more
doaj   +2 more sources

Reflectance anisotropy spectroscopy assessment of the MOVPE nucleation of GaInP on germanium (1 0 0)

Journal of Crystal Growth, 2011
This work summarizes the observations made on the variation and time evolution of the reflectance anisotropy signal during the MOVPE growth of GaInP nucleation layers on Germanium substrates.
Enrique Barrigón, B Galiana, Ignacio Rey-Stolle   +2 more
exaly   +2 more sources

Harnessing in-plane optical anisotropy in WS2 through ReS2 crystal [PDF]

Nanophotonics
In this work, we explore how the optical properties of isotropic materials can be modulated by adjacent anisotropic materials, providing new insights into anisotropic light-matter interactions in van der Waals heterostructures.
Kwon Soyeong, Yun Tae Keun, Ma Peiwen J., Nam SungWoo   +3 more
doaj   +2 more sources

Daily MODIS 500 m Reflectance Anisotropy Direct Broadcast (DB) Products for Monitoring Vegetation Phenology Dynamics

, 2013
Land surface vegetation phenology is an efficient bio-indicator for monitoring ecosystem variation in response to changes in climatic factors. The primary objective of the current article is to examine the utility of the daily MODIS 500 m reflectance ...
Xie, Donghui, Wang, Jindi, Wang, Zhuosen, Davies, James E., Strabala, Kathleen, Morisette, Jeffery, Nickerson, Jaime, Nickeson, Jaime, Morisette, Jeffrey, Roy, David P., Zhang, Xiaoyang, Li, Xiaowen, Schaaf, Crystal, Roy, David, Shuai, Yanmin, Nightingale, Joanne, Strahler, Alan, Richardson, Andrew D.   +17 more
core   +2 more sources

Reflectance anisotropy spectroscopy of strain-engineered GaAsBi alloys

Applied Physics Letters, 2022
In this paper we present results obtained by an optical technique, namely Reflectance Anisotropy Spectroscopy (RAS), applied to a series of GaAs 1-x Bi x samples grown by Molecular Beam Epitaxy (MBE) under different strain conditions with increasing ...
C. Goletti, L. Fazi, E. Tisbi, B. Bonanni, E. Placidi, F. Arciprete   +5 more
semanticscholar   +1 more source

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

Spin models with random anisotropy and reflection symmetry [PDF]

Physical 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, Pelissetto A, Vicari E.   +2 more
openaire   +4 more sources