• Thumbnail for Birefringence
    Birefringence is the optical property of a material having a refractive index that depends on the polarization and propagation direction of light. These...
    59 KB (6,582 words) - 03:52, 16 April 2024
  • Thumbnail for Polarization (waves)
    affect the polarization of light, but some materials—those that exhibit birefringence, dichroism, or optical activity—affect light differently depending on...
    73 KB (9,416 words) - 12:39, 20 August 2024
  • In biochemistry, flow birefringence is a hydrodynamic technique for measuring the rotational diffusion constants (or, equivalently, the rotational drag...
    900 bytes (102 words) - 06:54, 7 February 2022
  • Thumbnail for Optical rotation
    Optical rotation, also known as polarization rotation or circular birefringence, is the rotation of the orientation of the plane of polarization about...
    36 KB (4,889 words) - 20:22, 23 April 2024
  • Thumbnail for Photoelasticity
    physicist David Brewster, who immediately recognized it as stress-induced birefringence. That diagnosis was confirmed in a direct refraction experiment by Augustin-Jean...
    19 KB (2,326 words) - 14:04, 16 May 2024
  • Retinal birefringence scanning (RBS) is a method for detecting the central fixation of the eye. The method can be used in pediatric ophthalmology for...
    5 KB (511 words) - 05:00, 14 January 2024
  • property is termed giant birefringence which more generically is called giant optical anisotropy. Values for giant birefringence exceed 0.3. Much bigger...
    29 KB (2,332 words) - 03:40, 1 July 2024
  • Retrieved 2022-11-18. Cotton, Aimé; Mouton, Henri (1905-08-07). "Sur la biréfringence magnétique. Nouveaux liquides actifs". Comptes rendus hebdomadaires...
    2 KB (220 words) - 14:56, 31 January 2024
  • Thumbnail for RX J1856.5−3754
    the Very Large Telescope reported observational indications of vacuum birefringence from RX J1856.5−3754. A degree of polarization of about 16% was measured...
    9 KB (901 words) - 07:36, 6 July 2024
  • first study of IXPE has hinted the possibility of vacuum birefringence on 4U 0142+61. Birefringence Circular dichroism Chiral magnetic effect Schwinger limit...
    11 KB (1,131 words) - 18:23, 1 June 2024
  • Thumbnail for DVD
    be done carefully to make the disc as flat as possible to avoid both birefringence and "disc tilt", which is when the disc is not perfectly flat, preventing...
    74 KB (6,500 words) - 16:22, 18 August 2024
  • in a change in the birefringence, and not simply the refractive index of the medium. In a Kerr cell, the change in birefringence is proportional to the...
    3 KB (308 words) - 11:59, 9 April 2024
  • Thumbnail for Zircon
    Sri Lanka display only weak or no birefringence at all, and some other Sri Lanka stones may show clear birefringence in one place and little or none in...
    29 KB (3,036 words) - 18:02, 12 June 2024
  • The Kramers–Kronig relations, sometimes abbreviated as KK relations, are bidirectional mathematical relations, connecting the real and imaginary parts...
    23 KB (3,018 words) - 13:18, 9 July 2024
  • Thumbnail for Diamond
    Adamantine Optical properties Isotropic Refractive index 2.418 (at 500 nm) Birefringence None Pleochroism None Dispersion 0.044 Melting point Pressure dependent...
    139 KB (14,992 words) - 14:29, 12 August 2024
  • Thumbnail for X-ray birefringence imaging
    X‑ray birefringence imaging (XBI) can be considered the X‑ray analogue of the polarizing optical microscope. XBI uses linearly polarized X-rays with an...
    4 KB (472 words) - 07:18, 18 June 2024
  • Thumbnail for Quartz
    properties Uniaxial (+) Refractive index nω = 1.543–1.545 nε = 1.552–1.554 Birefringence +0.009 (B-G interval) Pleochroism None Melting point 1670 °C (β tridymite);...
    61 KB (5,745 words) - 00:43, 18 August 2024
  • microscopy, they have a needle-like morphology and strong negative birefringence. This test is difficult to perform and requires a trained observer....
    83 KB (8,330 words) - 07:19, 21 August 2024
  • Thumbnail for Refractive index
    direction of the light. This is called birefringence or optical anisotropy. In the simplest form, uniaxial birefringence, there is only one special direction...
    77 KB (8,706 words) - 18:19, 18 August 2024
  • Thumbnail for Aluminium oxide
    30 W·m−1·K−1 Refractive index (nD) nω = 1.768–1.772 nε = 1.760–1.763 Birefringence 0.008 Structure Crystal structure Trigonal, hR30 Space group R3c (No...
    34 KB (3,494 words) - 14:52, 19 August 2024
  • Thumbnail for Emerald
    properties Uniaxial (−) Refractive index nω = 1.564–1.595, nε = 1.568–1.602 Birefringence δ = 0.0040–0.0070 Ultraviolet fluorescence None (some fracture-filling...
    40 KB (3,743 words) - 22:49, 4 August 2024
  • Thumbnail for Ruby
    properties Uniaxial/− Refractive index nω=1.768–1.772 nε=1.760–1.763 Birefringence 0.008 to 0.010 Pleochroism Strong: purplish-red – orangy-red Dispersion...
    36 KB (3,857 words) - 15:20, 13 August 2024
  • Thumbnail for Sericite
    rocks with abundant sericite. Sericite in thin section (fine, high birefringence flakes covering other larger minerals) Granite in thin section under...
    2 KB (168 words) - 03:12, 24 January 2024
  • Thumbnail for Jasper
    Cleavage Indiscernible Mohs scale hardness 6.5–7 Luster Vitreous Diaphaneity Opaque Specific gravity 2.5–2.9 Refractive index 1.54–2.65 Birefringence 0.009...
    19 KB (1,734 words) - 06:17, 26 July 2024
  • Thumbnail for Geology
    properties in plane-polarized and cross-polarized light, including their birefringence, pleochroism, twinning, and interference properties with a conoscopic...
    87 KB (9,655 words) - 06:54, 21 August 2024
  • Thumbnail for Zero-point energy
    coming from distant galaxies. The first concrete evidence for vacuum birefringence was published in 2017 when a team of astronomers looked at the light...
    209 KB (26,957 words) - 20:11, 17 August 2024
  • Thumbnail for Faraday rotator
    birefringence, as is optical activity, but involves a material only having this property in the presence of a magnetic field. Circular birefringence,...
    5 KB (621 words) - 12:19, 21 May 2023
  • Thumbnail for Beryl
    silicate ring channels causes increases to the refractive indices and birefringence. Beryl is a beryllium compound that is a known carcinogen with acute...
    33 KB (3,169 words) - 13:17, 9 August 2024
  • Thumbnail for Agate
    Waxy Streak White Diaphaneity Translucent Specific gravity 2.58–2.64 Refractive index 1.530–1.540 Birefringence up to +0.004 (B-G) Pleochroism Absent...
    21 KB (2,045 words) - 22:07, 28 July 2024
  • Thumbnail for Cinnabar
    hot springs. The mineral resembles quartz in symmetry and it exhibits birefringence. Cinnabar has a mean refractive index near 3.2, a hardness between 2...
    23 KB (2,271 words) - 14:56, 16 July 2024