optical activity


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optical activity

n. Chemistry
A property caused by asymmetric molecular structure that enables a substance to rotate the plane of incident polarized light.

optically active adj.

optical activity

n
(Chemistry) the ability of substances that are optical isomers to rotate the plane of polarization of a transmitted beam of plane-polarized light

op′tical activ′ity


n.
the ability of a substance to rotate the plane of polarization of plane-polarized light.
[1875–80]
Translations
activité optique
References in periodicals archive ?
Request a Free Sample Report- https://www.factmr.com/connectus/sample?flag=S&rep_id=2600 Polarimeter refers to a device used for gauging the optical activity of a fluid.
The subject of the public contract is the supply of polarization optics for UV Raman optical activity. The subject of a public contract is, besides the delivery itself, also transport to the place of performance and the provision of a warranty service.
Most interestedly, two separated passbands are observed, one for v-to-u polarization conversion and the other for u-to-v polarization conversion, which demonstrate strong optical activity in the proposed MM.
Cheng, "Dual-band terahertz chiral metamaterial with giant optical activity and negative refractive index based on cross-wire structure," Progress In Electromagnetics Research M, vol.
LGS exhibits optical activity, which means that the light polarization direction is rotated as it propagates through the crystal.
He covers the Raman effect, normal mode vibration, the elucidation of bond polarizabilities, the Raman virtual states, more applications, the extension to Raman optical activity, more applications on Raman optical activity, intramolecular enantiomerism, the unified classical theory for Raman optical activity and vibrational circular dichromism.
To affirm this possibility, the anionic polymerization of TrMA was carried out with the (-)-sparteine-n-butyllithium ((-)-Sp-BuLi) complex at -78 [degrees]C using a quartz vacuum vessel with optical windows, which was placed in a polarimeter for the measurement of optical activity during the polymerization (Fig.
Optical activity can be generated by two main factors related to the polymer structure.
developed a helical chiral polymer such as polylactic acid with a weight-average molecular weight of 50,000-1,000,000, optical activity, and 20-80% crystallinity, showing enhanced piezoelectricity.
Its anatase phase has bandgap and optical activity. Optical activity means the ability of producing radical groups in the surface under sunlight [26].
Asymmetric inductions were expected fromthe chiral pyridinium salts, but optical rotation measurements showed that the products did not show any optical activity.
[4], a polarizing system with the properties of a quarter-wave plate, with an additional optical activity based on two birefringent plates of arbitrary thickness, is considered theoretically and implemented experimentally.