Search results
Results from the WOW.Com Content Network
Polarimetry is used in remote sensing applications, such as planetary science, astronomy, and weather radar. Polarimetry can also be included in computational analysis of waves. For example, radars often consider wave polarization in post-processing to improve the characterization of the targets.
Scanning laser polarimetry is the use of polarised light to measure the thickness of the retinal nerve fiber layer (RNFL) as part of a glaucoma workup. The GDx-VCC is one example. The GDx-VCC is one example.
A polarimeter [1] is a scientific instrument used to measure optical rotation: the angle of rotation caused by passing linearly polarized light through an optically active substance. [ 2 ] Some chemical substances are optically active, and linearly polarized (uni-directional) light will rotate either to the left (counter-clockwise) or right ...
Polarimetry: Polarimetry uses the innate property of chiral molecules to rotate the plane-polarized light in equal and opposite direction. This method can be used to distinguish between enantiomers and from the racemate; (+) from (-) and (±) Optical rotatory dispersion (ORD)
The prefix used to indicate absolute configuration is not directly related to the (+) or (−) prefix used to indicate optical rotation in the same molecule. For example, nine of the nineteen L - amino acids naturally occurring in proteins are, despite the L - prefix, actually dextrorotary (at a wavelength of 589 nm), and D - fructose is ...
In order for a molecule (or crystal) to exhibit circular birefringence and circular dichroism, it must be distinguishable from its mirror image.An object that cannot be superimposed on its mirror image is said to be chiral, and optical rotatory dispersion and circular dichroism are known as chiroptical properties.
William Shurcliff (1966) Polarized Light: Production and Use, chapter 8 Mueller Calculus and Jones Calculus, page 109, Harvard University Press. Simpson, Garth (2017). Nonlinear Optical Polarization Analysis in Chemistry and Biology. Cambridge, UK: Cambridge University Press. p. 392. ISBN 978-0-521-51908-3
The rotation is reported using degrees, and no units of concentration are given (it is assumed to be g/100mL). The sign of the rotation (+ or −) is always given. If the wavelength of the light used is 589 nanometer (the sodium D line), the symbol “D” is used. If the temperature is omitted, it is assumed to be at standard room temperature ...