index liquid

[′in‚deks ‚lik·wəd]

(optics)

A liquid whose index of refraction is known, used to find the index of refraction of powdered substances with a microscope.

References in periodicals archive ?

To do this with a microscope, you can buy refractive index liquids or get pretty close by using available liquids having a refractive index found on the Internet.

Distinguishing particles by refractive index: the index of refraction of a material is defined by the speed of light in vacuum, C, divided by the speed of light through the material, V

Farrell, "A macrobending singlemode fiber refractive index sensor for low refractive index liquids," Photonics Letters of Poland, vol.

Whispering gallery mode based optical fiber sensor for measuring concentration of salt solution

It should again be pointed out here that this device is of merely minor importance in mineralogical research except for the fact that it was often used for calibrating index liquids.