crystal optical activity

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• Raman optical activity — (ROA) is a vibrational spectroscopic technique that is reliant on the difference in intensity of Raman scattered right and left circularly polarised light due to molecular chirality. History of Raman optical activity The field began with the… …   Wikipedia

• optical activity — noun a) a property caused by asymmetrical molecular or crystal structure that enables a compound or crystal to rotate the plane of incident polarized …   Wiktionary

• Optical rotation — (optical activity) is the turning of the plane of linearly polarized light about the direction of motion as the light travels through certain materials. It occurs in solutions of chiral molecules such as sucrose (sugar), solids with rotated… …   Wikipedia

• Optical imaging — is an imaging technique. Optics usually describes the behavior of visible, ultraviolet, and infrared light used in imaging. Because light is an electromagnetic wave, similar phenomena occur in X rays, microwaves, radio waves. Chemical imaging or… …   Wikipedia

• Crystal oscillator — A miniature 4 MHz quartz crystal enclosed in a hermetically sealed HC 49/US package, used as the resonator in a crystal oscillator. A crystal oscillator is an electronic oscillator circuit that uses the mechanical resonance of a vibrating crystal …   Wikipedia

• Optical Society of America — The Optical Society of America (OSA) is a scientific society dedicated to advancing the study of light optics and photonics in theory and application, by means of worldwide research, scientific publishing, conferences and exhibitions, partnership …   Wikipedia

• liquid crystal display — n. LCD * * * ▪ electronics Introduction       electronic display device that operates by applying a varying electric voltage to a layer of liquid crystal, thereby inducing changes in its optical properties. LCDs are commonly used for portable… …   Universalium

• Electro-gyration — The electrogyration effect is the spatial dispersion phenomenon, that consists in the change of optical activity (gyration) of crystals by a constant or time varying electric field. Being a spatial dispersion effect, the induced optical activity… …   Wikipedia

• Martin Schadt — (1938), PhD, is a Swiss physicist and inventor. Contents 1 Biography 2 Achievements 3 Awards 4 Publications and P …   Wikipedia

• protein — proteinaceous /proh tee nay sheuhs, tee i nay /, proteinic, proteinous, adj. /proh teen, tee in/, n. 1. Biochem. any of numerous, highly varied organic molecules constituting a large portion of the mass of every life form and necessary in the… …   Universalium

• Raman spectroscopy — Energy level diagram showing the states involved in Raman signal. The line thickness is roughly proportional to the signal strength from the different transitions. Raman spectroscopy (   …   Wikipedia