optical rotation

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optical rotation:

see polarization of lightpolarization of light,
orientation of the vibration pattern of light waves in a singular plane. Characteristics of Polarization

Polarization is a phenomenon peculiar to transverse waves, i.e.
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optical rotation

[′äp·tə·kəl rō′tā·shən]
(optics)
Rotation of the plane of polarization of plane-polarized light, or of the major axis of the polarization ellipse of elliptically polarized light by transmission through a substance or medium.
References in periodicals archive ?
Optical purity (% L-content, as determined by optical polarimetry) is always >95% in all cases, suggesting retention of configuration as well as chemical integrity.
He adds that the optical purity of quartz that may be equally important to many users in laboratory environments because a relatively broad range of light wavelengths to pass unimpeded through clear quartz ware, which is vital to many laboratory applications.
He adds that the optical purity of quartz may be equally important to many users in laboratory environments because a relatively broad range of light wavelengths pass unimpeded through clear fused quartz, which is especially important in UV disinfection applications.
Researchers routinely use nuclear magnetic resonance (NMR) spectroscopy to determine optical purity and assign the absolute configuration of many classes of compounds, a process that requires mastery of a broad array of reagents.
L, dl- and 1-isomers can be distinguished optically by using refractometric techniques that determine the specific rotation and therefore the optical purity of the isomer.
It is said to have exceptional optical purity and clarity, with a refractive index of 1.

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