A doubly refracting mineral used to produce polarizing prisms. It is uniaxial negative and in the trigonal division of the hexagonal system of crystals. Its indices are e = 1.486, w = 1.658; its hardness is 3 Mohs; and its specific gravity is 2.711.

A law that uses the square of the cosine between the plane of polarization of a beam of plane-polarized light and the plane...

An immersion liquid used to treat polarizing filters to eliminate the effects of surface variations and to minimize the...

A polarizing prism assembly made up of two cemented calcite halves. The prism transmits the ordinary ray without deviation,...

A polarizing beamsplitting prism similar in design to the Rochon prism. However, the Senarmont transmits the extraordinary...

An optical instrument, generally a polarizing microscope, that is used to determine the interference figures and optical...

Laser optics refers to a broad category of optical components and systems designed for manipulating and controlling laser...

A filter that polarizes light passing through it. It is possible to fabricate sheets of plastic or gelatin that contain...

A polarizer that consists of dichroic polarizing material embedded in a plastic sheet, and that transmits light that is...

A coating made up of particular birefringent materials having polarizing properties. It may be used, in some cases, to...

Birefringence is an optical property of certain materials that causes them to exhibit different refractive indices for light...

The ratio of the power of a plane-polarized beam that is transmitted through a polarizer placed in its path with its...

A filter that transmits light in a series of sharp, widely spaced wavelength bands by its sandwich construction of...

A naturally occurring crystalline mineral that has the property of polarizing transmitted light. It is little used now that...

A spectrophotometer having a pair of identical collimators with two Glan polarizing prisms, one fixed in azimuth and the...

A solid with a structure that exhibits a basically symmetrical and geometrical arrangement. A crystal may already possess...

A type of birefringent polarizing prism that transmits the extraordinary ray and removes the ordinary ray through total...

Measures the refractive indices axially from the fiber profile. Microscopy technique provides an interferogram with high...

A device that is used to produce or analyze plane-polarized light. It may be a Nicol prism or some other form of calcite...

A polarizing prism formed from calcite that is like the Nicol prism but has the two parts divided by a thin air-film and cut...

A Laurent polarimeter is an instrument used in optics for measuring the rotation of plane-polarized light caused by...

An eyepiece used in a polariscope or polarizing microscope to give a comparison view of the same object under illumination...

In a camera, the movement of one or more lenses behind the front lens, rather than of the front lens itself, to bring the...

A polarizing prism consisting of two calcite prisms cemented such that they deviate the two emerging beams (which are...

A structure consisting of a thin film of liquid crystal sandwiched between light-polarizing filters that have received a...

Polarization refers to the orientation of oscillations in a transverse wave, such as light waves, radio waves, or other...

A piece of uniform birefringent material placed at a 45° angle to the plane of polarization in a polarizing microscope...

A spectrometer equipped with polarizing prisms and retardation plates that is used in the analysis of elliptically polarized...