birefringent crystal

birefringent crystal

A crystal which, by light microscopy, is anisotropic with respect to the velocity of light.
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Scholars have built reasonable cases that the sunstone was either a ball of beryl used as a burning-glass, an alternative early name for lodestone, or a birefringent crystal used to measure the sky's polarization.
DynaDelay uses multiple birefringent crystal segments and 90(degree) rotators sandwiched between the crystal segments to achieve fast differential delay variations.
5) Synovial fluid analysis can be used to identify weakly positively birefringent crystals using polarized light microscopy.
It contains large amounts of cholesterol and its esters, which may be demonstrated under polarized light in fresh tissue as birefringent crystals.
The family of larger aperture optics consists of two different birefringent crystals - crystalline quartz and magnesium fluoride (MgF2) - each with a highly efficient broadband antireflection coating, in an air-spaced design.
The histopathologic study revealed numerous peribronchiolar large granulomatous lesions composed of macrophages, which showed abundant cytoplasm containing numerous birefringent crystals identified as silicates by transmission electron microscopy.
In this retrospective study, we evaluated the MMPS as a means of identifying MCC and separating it from other birefringent crystals that are occasionally found in lung tissue specimens.
Seebeck also observed that water does not change polarization of light while ice shows fringe patterns similar to birefringent crystals.
In the trainees' hands, synovial fluid analysis for identification of the needle-shaped, negatively birefringent crystals of monosodium urate had 95% sensitivity and 97% specificity.
Crystal products include laser crystals, nonlinear crystals, birefringent crystals and diode pumped microchip (DPM) crystal assemblies for commercial laser systems instrument systems and diode pumped solid state (DPSS) laser module systems.