- uniaxial crystals
- • едноосен кристал
English-Bulgarian polytechnical dictionary . 2013.
uniaxial crystals
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Uniaxial — U ni*ax i*al, a. [Uni + axial.] 1. (Crystallog.) Having but one optic axis, or line of no double refraction. [1913 Webster] Note: In uniaxial crystals, the optic axis has the direction of the vertical crystallographic axis. All tetragonal and… … The Collaborative International Dictionary of English
uniaxial — [yo͞o΄nē ak′sē əl] adj. having a single axis: said as of some crystals uniaxially adv … English World dictionary
uniaxial — adj. having one axis; pertaining to or being a plant with only one stem and no branches (Botany); refracting in only one direction that is parallel to the principal axis (Crystals) … English contemporary dictionary
Nonlinear optics — (NLO) is the branch of optics that describes the behaviour of light in nonlinear media, that is, media in which the dielectric polarization P responds nonlinearly to the electric field E of the light. This nonlinearity is typically only observed… … Wikipedia
Liquid crystal — Schlieren texture of liquid crystal nematic phase Liquid crystals (LCs) are a state of matter that have properties between those of a conventional liquid and those of a solid crystal.[1] For instance, an LC may flow like a liquid, but its… … Wikipedia
pleochroism — /plee ok roh iz euhm/, n. the property of certain crystals of exhibiting different colors when viewed from different directions under transmitted light. Cf. dichroism (def. 1), trichroism. [1855 60; PLEOCHRO(IC) + ISM] * * * ▪ optics (from Greek … Universalium
Optical mineralogy — A petrographic microscope, which is an optical microscope fitted with cross polarizing lenses, a conoscopic lens, and compensators (plates of anisotropic materials; gypsum plates and quartz wedges are common), for crystallographic analysis.… … Wikipedia
optical crystallography — branch of crystallography that deals with the optical properties of crystals (crystal). It is of considerable interest theoretically and has the greatest practical importance. The science of petrography is largely based on the study of the… … Universalium
ДВОЙНОЕ ЛУЧЕПРЕЛОМЛЕНИЕ — раздвоение световых лучей при прохождении через анизотропную среду (напр., кристалл), обусловленное зависимостью преломления показателя этой среды от направления электрич. вектора световой волны (см. КРИСТАЛЛООПТИКА, ОПТИЧЕСКАЯ АНИЗОТРОПИЯ). При… … Физическая энциклопедия
Birefringence — Displacement of light rays with perpendicular polarization through a birefringent material … Wikipedia
solids, mechanics of — ▪ physics Introduction science concerned with the stressing (stress), deformation (deformation and flow), and failure of solid materials and structures. What, then, is a solid? Any material, fluid or solid, can support normal forces.… … Universalium
