Physical properties of new ordered bimetallic phases M0.25Cd0.75PS3 (M = ZnII, NiII, CoII, MnII)

Measurement of optical properties of skin is an expanding and growing field of research. Recent studies have shown that the biological tissue, especially skin changes the polarization state of the incident light. Using this property will enable the study of abnormalities and diseases that alter not only the light intensity but also its polarization state. We have tried an experimental study for measuring changes of polarization state of the light scattered from skin sample. Using the strokes vector and Mueller matrix notation we have shown that some elements of matrix were sensitive to the changes of the polarization when physical properties of the scatters are changed with sample.

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PHYSICAL PROPERTIES OF AuAl2, AuGa2, AuIn2, AND PtGa2

Modern Physics Letters B ◽

10.1142/s0217984994001278 ◽

1994 ◽

Vol 08 (21n22) ◽

pp. 1297-1318 ◽

Cited By ~ 18

Author(s):

LI-SHING HSU

Keyword(s):

Thin Film ◽

Optical Properties ◽

Band Structure ◽

Physical Properties ◽

Fermi Level ◽

Density Of States ◽

Band Structure Calculations ◽

Structure Calculations ◽

Film Form

The structural, electronic, magnetic, and optical properties of AuAl 2, AuGa 2, AuIn 2, and PtGa2 are reviewed. These experimental results are compared with the values of the density of states at the Fermi level derived from band-structure calculations. The so-called “ AuGa 2 dilemma” and the controversial positions of the Au 5d bands in AuAl 2, AuGa 2, and AuIn 2 are discussed. The physical properties of PtGa 2 are summarized and compared with those of the Au intermetallic compounds. Recent researches on the growth and characterization of these compounds in thin-film form are also presented.

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Comparison of ISS–CATS and CALIPSO–CALIOP Characterization of High Clouds in the Tropics

Remote Sensing ◽

10.3390/rs12233946 ◽

2020 ◽

Vol 12 (23) ◽

pp. 3946

Author(s):

Pasquale Sellitto ◽

Silvia Bucci ◽

Bernard Legras

Keyword(s):

Optical Properties ◽

Space Station ◽

Satellite Observation ◽

Observation Data ◽

Upper Troposphere ◽

Cloud Properties ◽

Synchronous Orbit ◽

The Tropics ◽

High Clouds

Clouds in the tropics have an important role in the energy budget, atmospheric circulation, humidity, and composition of the tropical-to-global upper-troposphere–lower-stratosphere. Due to its non-sun-synchronous orbit, the Cloud–Aerosol Transport System (CATS) onboard the International Space Station (ISS) provided novel information on clouds from space in terms of overpass time in the period of 2015–2017. In this paper, we provide a seasonally resolved comparison of CATS characterization of high clouds (between 13 and 18 km altitude) in the tropics with well-established CALIPSO (Cloud–Aerosol Lidar and Infrared Pathfinder Satellite Observation) data, both in terms of clouds’ occurrence and cloud optical properties (optical depth). Despite the fact that cloud statistics for CATS and CALIOP are generated using intrinsically different local overpass times, the characterization of high clouds occurrence and optical properties in the tropics with the two instruments is very similar. Observations from CATS underestimate clouds occurrence (up to 80%, at 18 km) and overestimate the occurrence of very thick clouds (up to 100% for optically very thick clouds, at 18 km) at higher altitudes. Thus, the description of stratospheric overshoots with CATS and CALIOP might be different. While this study hints at the consistency of CATS and CALIOP clouds characterizaton, the small differences highlighted in this work should be taken into account when using CATS for estimating cloud properties and their variability in the tropics.

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