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Alluxa - Optical Coatings LB 8/23
crystalline Dictionary Terms

solid-state laser
A solid-state laser is a type of laser that uses a solid gain medium (as opposed to a liquid or gas) to produce coherent...
hot extrusion
A method of manufacturing polycrystalline infrared-transmitting optical fiber by heating a single halide crystal billet and...
doubly refracting crystal
A transparent crystalline substance that is anisotropic relative to the velocity of light.
optical materials
Optical materials refer to substances or compounds specifically chosen for their optical properties and used in the...
YAG crystal
A YAG crystal refers to a solid-state crystal made of yttrium aluminum garnet (YAG), which is a synthetic crystalline...
grain boundary
In a multicrystalline material, the meeting point between crystallites.
crystalline axes
The axes of symmetry in a crystal structure. See also biaxial crystal; uniaxial crystal.
epitaxial deposition
Epitaxial deposition is a process used in semiconductor manufacturing and materials science to grow a thin crystalline...
piezoelectric transducers and ceramic materials
Piezoelectric transducers are devices that utilize the piezoelectric effect to convert electrical energy into mechanical...
Kikuchi lines
An array of spectral lines formed when a beam of electrons, striking a crystalline solid, is scattered. It is used in the...
epitaxial equipment
Epitaxial equipment refers to a set of specialized tools and systems used in the process of epitaxy, which is the growth of...
semiconductor
A semiconductor is a type of material that has electrical conductivity between that of a conductor and an insulator. In...
potassium titanyl phosphate
A crystalline material with a high electro-optic coefficient, capable of operating at short wavelengths, with applications...
lead zirconate titanate
A ferroelectric polycrystalline ceramic material used in optical memories for computers and as a piezoelectric transducer.
acousto-optic tunable filter
A bulk crystalline optic which permits the propagation of light through a volume of index altered material. The variation in...
cylindrical lens
A cylindrical lens is an optical component that has different curvatures along its two orthogonal axes, resulting in a shape...
crystal quartz
The naturally occurring crystalline form of silicon dioxide. It is slightly birefringent and exhibits rotary dispersion of...
lithium niobate
A crystalline ferroelectric material used primarily as a substrate and an active medium for thin-film optical modulators and...
optically isotropic crystal
A transparent crystalline substance that displays the same optical properties (i.e. refractive index) in all directions such...
triboluminescence
Luminescence that arises from friction and that usually occurs in crystalline materials.
hard elastics
High-modulus elastic fibers that exhibit the following differences from conventional elastic fibers: Increasing temperature...
color center
A color center, in the context of materials science and condensed matter physics, refers to a specific type of...
cleavage planes
Naturally occurring planes in crystalline substances that provide easy points for separation.
optical ceramics
Transparent glassy and or crystalline structured materials engineered from inorganic, non-metallic materials via various...
iris
The adjustable membrane located just in front of the crystalline lens within the eye. The iris gives the eye its color. See...
stone
An opaque inclusion in glass that contains undissolved or crystalline material. Also known as a seed.
Langmuir-Blodgett technique
A method of depositing crystalline films one molecular layer at a time, by dipping the substrate into water containing a...
Czochralski technique
Popular process for silicon and polycrystalline production that consists of an alteration of the original state of a...
glass
A noncrystalline, inorganic mixture of various metallic oxides fused by heating with glassifiers such as silica, or boric or...
x-ray analysis
The series of processes used to identify and evaluate crystal structure by using crystalline solids to diffract x-rays. In...
optically biaxial crystal
One of a class of crystalline substances belonging to triclinic, monoclinic and orthorhombic systems that have two optic...
magnesium fluoride
A colorless, crystalline compound whose low refractive index (n = 1.38) makes it effective as a lens antireflection coating...
radiometallography
The analysis, by x-rays, of the crystalline structure and other properties of metals and alloys.
chalcogenide
Chalcogenide refers to a class of compounds containing elements from group 16 of the periodic table, which includes sulfur...
zinc sulfide
A polycrystalline material that transmits in the infrared; it is used as a phosphor in x-ray and television screens.
optically uniaxial crystal
A transparent crystalline substance in which the refractive index of the optic axis (extraordinary axis) is different from...
etching liquid
An acid used to etch the surfaces of particular materials. For glass, hydrofluoric acid is used either as a liquid or a...
phase-change optical disc
An erasable data recording and storage medium that uses a laser to heat the crystalline surface of the disc to a certain...
germanium crystal
Germanium crystal refers to a crystalline form of the element germanium (Ge), which is a metalloid and semiconductor...
sol-gel
A gelatinous fluid that can be used as a porous thin-film coating for optical components, including laser beam collimators,...
crystalline lens
The internal lens of the eye. It is semielastic to permit changes in its power when focusing on objects at near distances.
gallium arsenide phosphide
Gallium arsenide phosphide (GaAsP) is a semiconductor alloy composed of gallium (Ga), arsenic (As), and phosphorus (P). It...
phonon
A phonon is a quantum of vibrational energy associated with the periodic motion of atoms or molecules in a crystalline...
diamond-turned optic
Diamond turning refers to a precision machining process used to produce complex optical components, particularly lenses and...
photoconductor
A light-sensitive resistor in which resistance decreases with increase in light intensity when illuminated. The device...
barium titanate
A crystalline material used in piezoelectric devices.
sonde
A ruggedized scintillation counter used in oil well logging. The cylindrical housing contains a gamma ray source, a...
perfect crystal
A crystalline substance in which all planes are parallel, or approximately parallel.
tourmaline
A naturally occurring crystalline mineral that has the property of polarizing transmitted light. It is little used now that...
indium
Metal used in components of the crystalline semiconductor alloys indium gallium arsenide (InGaAs), indium gallium arsenide...
infrared optical material
The range of materials that, unlike glass, may be used in the infrared. Water-soluble salts, such as cesium iodide, and...
gallium aluminum arsenide
A crystalline semiconductor alloy used as the light confinement layer in both single- and double-heterostructure diode...
fused quartz and silica
Fused quartz and silica are closely related materials, both composed primarily of silicon dioxide (SiO2), but they are...
laser annealing
Laser annealing is a process that involves using a laser beam to heat and modify the microstructure of a material, typically...
wafer
In the context of electronics and semiconductor manufacturing, a wafer refers to a thin, flat disk or substrate made of a...
amorphous
The disordered, glassy solid state of a substance, as distinguished from the highly ordered crystalline solid state....
plate crystal
Any crystalline material whose length is much less than its measured diameter.
germanium
A crystalline semiconductor material that transmits in the infrared.
quartz plate
A crystalline-quartz plate designed according to specifications but having its two major faces parallel.
epitaxial
Epitaxial refers to the growth of a crystalline layer on a crystalline substrate in such a way that the orientation of the...
sapphire
Sapphire refers to a crystalline form of aluminum oxide (Al2O3) that is used in various optical and photonic applications...
valence band
In a crystalline substance, the spectral range of states of energy that contains the crystal's binding valence electrons.

(62 results found)

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