Polarization-singular structure of phase-inhomogeneous layers for diagnostics and classification of their optical properties

2013 ◽  
Author(s):  
A. G. Ushenko ◽  
A. V. Dubolazov
Keyword(s):  
Optical Properties

scholarly journals Prediction of quality attributes and ripeness classification of bananas using optical properties

2016 ◽  
Vol 212 ◽  
pp. 171-182 ◽  
Author(s):  
Segun Emmanuel Adebayo ◽  
Norhashila Hashim ◽  
Khalina Abdan ◽  
Marsyita Hanafi ◽  
Kaveh Mollazade
Keyword(s):  
Optical Properties ◽  
Quality Attributes

Classification of Inland Waters Based on Bio-Optical Properties

2014 ◽  
Vol 7 (2) ◽  
pp. 543-561 ◽  
Author(s):  
Kun Shi ◽  
Yunmei Li ◽  
Yunlin Zhang ◽  
Lin Li ◽  
Heng Lv ◽  
...  
Keyword(s):  
Optical Properties ◽  
Inland Waters

scholarly journals CLASSIFYING OPTICAL PROPERTIES OF SURFACE- AND BULK-SCATTERING BIOLOGICAL LAYERS WITH POLARIZATION SINGULAR STATES

2013 ◽  
Vol 06 (03) ◽  
pp. 1350018 ◽  
Author(s):  
YU. A. USHENKO ◽  
G. B. BODNAR ◽  
G. D. KOVAL
Keyword(s):  
Optical Properties ◽  
Analytical Tool ◽  
Surface Scattering ◽  
Stokes Vector ◽  
Vector Parameter ◽  
Different Types ◽  
Orthogonal Components ◽  
Bulk Scattering ◽  
Characteristic Values

The results of singular approach usage in the tasks of description and classification of appearance of optical anisotropy of different types of phase-inhomogeneous biological layers (surface-scattering, optically thin and optically thick) have been presented. The characteristic values of the fourth Stokes vector parameter (S4= 0 — linear polarization — (L-state); S4= ±1 — circular polarization — (±C-state)) have been chosen as the main analytical tool describing polarization-singular states. The value of S4has been determined by the value of phase shift between the orthogonal components of amplitude in the point of biological layer laser image and therefore is azimuthally stable. Hence, statistic moments of the first to the fourth orders characterizing the distribution of the amount of characteristic values S4= 0; S4= ±1 have been used for definition and differentiation of optical properties of different types of biological layers — surface scattering, optically thin and optically thick human skin.

scholarly journals Aerosol optical properties as observed from an ultralight aircraft over the Strait of Gibraltar

2020 ◽  
Vol 13 (8) ◽  
pp. 4461-4477 ◽  
Author(s):  
Patrick Chazette
Keyword(s):  
Optical Properties ◽  
Atmospheric Aerosols ◽  
Transport Processes ◽  
Horizontal Line ◽  
Free Troposphere ◽  
Strait Of Gibraltar ◽  
North East ◽  
San Pedro ◽  
The Difference

Abstract. An unprecedented scientific flight was conducted over the Strait of Gibraltar to study the optical properties of the atmospheric aerosols from the sea surface to the lower free troposphere within the framework of the southern Spain experiment for spaceborne mission validation (SUSIE). A Rayleigh–Mie lidar was installed on an ultralight aircraft (ULA) for vertical (nadir) and horizontal line-of-sight measurements. This experiment took place on 13 August 2011 in parallel with continuous observations with a N2-Raman lidar from the coastal site of San Pedro Alcantara (∼ 50 km north-east of Gibraltar). Significant differences were observed between the optical properties of the aerosol layers sampled over the Strait of Gibraltar and San Pedro Alcantara. These differences are related to the surface–atmosphere interface in the planetary boundary layer and the origins and transport processes in the lower free troposphere. A significant contribution of terrigenous aerosols originating from the Iberian Peninsula is highlighted over the two areas. These polluted dusts are identified with lidar ratios (LRs) ∼45±8 sr higher than those of Saharan aerosols sampled during the same period (<34 sr) at 355 nm. Furthermore, the particle depolarization ratio is derived with values of ∼ 10 %–15 % for the polluted dust and >20 % for the Saharan dusts. The difference in LRs is the opposite of what is usually assumed for these two types of aerosols and highlights the need to update the classification of aerosols in terms of LR to be used in the inversion of vertical profiles from future spaceborne missions embedding a lidar operating at 355 nm.

Experimental Studies on the Classification of Airborne Particles Based on Their Optical Properties

2018 ◽  
Vol 39 (3) ◽  
pp. 369-374 ◽  
Author(s):  
Kibong Choi ◽  
Young Jin Koh ◽  
Young-Su Jeong ◽  
Eugene Chong
Keyword(s):  
Optical Properties ◽  
Experimental Studies ◽  
Airborne Particles

scholarly journals Classification of fine-grained igneous, sedimentary and metamorphic rocks through structured programming

2014 ◽  
pp. 5-9
Author(s):  
Wendy Patricia Orozco-Centeno ◽  
Jhon Willian Branch Bedoya ◽  
Jovani Alberto Jiménez-Builes
Keyword(s):  
Optical Properties ◽  
Microscopic Analysis ◽  
Metamorphic Rocks ◽  
Thin Sections ◽  
Fine Grained ◽  
Mineral Associations ◽  
Macroscopic Examination

The study of rocks has become more important, because through the rocks analysis I can be obtained information that can be useful in a lot of fields from mining to construction, passing through many different action fields from materials to processes. In order to analyze the rocks is required a preliminary macroscopic examination of several samples from the field in which one is going to work. The objective of this study is to describe properties such as color, hardness, texture, etc. Then we proceed to do a microscopic analysis, for that we use thin sections that have been prepared in advance from the samples that were used in the initial macroscopic examination, in order to know more properties that can only be seen with a microscope. From this analysis of the optical properties of minerals and mineral associations we can define the type of rock, the formation environments and the behavior of these, among other properties that are outstanding when carrying out a work in a field.

Columnar-integrated aerosol optical properties and classification of different aerosol types over the semi-arid region, Anantapur, Andhra Pradesh

2015 ◽  
Vol 527-528 ◽  
pp. 507-519 ◽  
Author(s):  
Rama Gopal K ◽  
Arafath S.Md ◽  
Balakrishnaiah G ◽  
Raja Obul Reddy K ◽  
Siva Kumar Reddy N ◽  
...  
Keyword(s):  
Optical Properties ◽  
Arid Region ◽  
Andhra Pradesh ◽  
Aerosol Optical Properties ◽  
Semi Arid Region ◽  
Aerosol Types ◽  
Semi Arid
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