uniaxial crystal वाक्य
उदाहरण वाक्य
मोबाइल
- A crystal with only one optic axis is called a uniaxial crystal.
- Birefringence is the difference between two principal indices of refraction of a uniaxial crystal.
- A uniaxial crystal is isotropic within the plane orthogonal to the optic axis of the crystal.
- A uniaxial crystal is " positive " if n e > n o and " negative " if n e o.
- Aligned nematics have the optical properties of uniaxial crystals and this makes them extremely useful in liquid crystal displays ( LCD ).
- "' Lithium iodate "'( LiIO 3 ) is a negative uniaxial crystal for nonlinear, acousto-optical and piezoelectric applications.
- For a uniaxial crystal, this is the " optic axis ", the " z " direction according to the above construction.
- Thus there is no axis around which a rotation leaves the optical properties invariant ( as there is with uniaxial crystals whose index ellipsoid " is " a spheroid ).
- If they belong to uniaxial crystals they show a dark cross or convergent light between crossed nicols, the bars of which remain parallel to the wires in the field of the eyepiece.
- In a uniaxial crystal, different polarization components of a beam will travel at different phase velocities, " except " for rays in the direction of what we call the optic axis.
- The simplest configuration considered in Ref . 1 consists of an interface between an isotropic material with permittivity ? and a uniaxial crystal with permittivities ?o and ?e for the ordinary and the extraordinary waves respectively.
- If \ varepsilon _ { 2 } vanishes, then the tensor is diagonal but not proportional to the identity and the medium is said to be a uniaxial medium, which has similar properties to a uniaxial crystal.
- A uniaxial crystal exhibits two refractive indices, an " ordinary " index ( " n " o ) for light polarised in the x or y directions, and an " extraordinary " index ( " n " e ) for polarisation in the z direction.
- In a uniaxial crystal, there is only two orientations ( out of 6 ) in which birefringence can be seen, yes ? ( I had to guess from the hexagonal crystal structure of calcite-- the language isn't clear at all ! ) I couldn't figure out from the article
- Negative uniaxial crystals ( e . g . calcite CaCO 3, ruby Al 2 O 3 ) have " n e " o " so for these crystals, the extraordinary axis ( optic axis ) is the fast axis whereas for positive uniaxial crystals ( e . g . quartz SiO 2, sellaite ( magnesium fluoride ) MgF 2, rutile TiO 2 ), " n e " > " n o " and thus the extraordinary axis ( optic axis ) is the slow axis.
- Negative uniaxial crystals ( e . g . calcite CaCO 3, ruby Al 2 O 3 ) have " n e " o " so for these crystals, the extraordinary axis ( optic axis ) is the fast axis whereas for positive uniaxial crystals ( e . g . quartz SiO 2, sellaite ( magnesium fluoride ) MgF 2, rutile TiO 2 ), " n e " > " n o " and thus the extraordinary axis ( optic axis ) is the slow axis.
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