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Perkins Precision Developments - Plate Polarizers LB 4/24
symmetry Dictionary Terms

tetartohedral crystal
The section of crystal symmetry having only one-quarter of the greatest number of faces permitted by the crystal system of...
chirality
Chirality is a property of certain molecules and objects in which they are non-superimposable on their mirror images. In...
basal plane
A plane in a crystal that lies parallel to the principal plane of symmetry.
director
In a liquid crystal system, the director refers to the local symmetry axis around which the long range order of the liquid...
optical axis
The imaginary line passing through both the centers of curvatures of the optical surfaces of a lens or mirror; the optical...
plane of symmetry
An imaginary plane dividing a body into two parts so that each part is the precise mirror image of the other in the plane of...
crystalline axes
The axes of symmetry in a crystal structure. See also biaxial crystal; uniaxial crystal.
meso form
A form of an element that cannot demonstrate optical activity as a result of dextrogyrate and levogyrate effects that are...
polarization-preserving fiber
Single-mode fiber that preserves the plane of polarization of the light launched into it as the beam propagates through its...
circular dichroism
Circular dichroism (CD) is a spectroscopic technique used to study the structural characteristics of chiral (asymmetric)...
image centroid
Often referred to as the geometric center of a given image or image plane, the centroid of an image is a fixed point located...
second-harmonic generation
Second-harmonic generation (SHG) is a nonlinear optical process that occurs when two photons with the same frequency combine...
nonlinear optical crystal
An optical crystal that possesses a strong nonlinear dielectric response function to optical radiation. A material with a...
symmetry operation
Any systemic process that ultimately reassembles all the system's components into their initial alignment, or an arrangement...

(14 results found)

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