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Everyone who is interested in faceting is likely to have seen the double image that is visible through a crystal of calcite. Most know that this is due to a property called 'birefringence' and that highly birefringent materials are often prone to cleavage and hard to polish. Everyone who is interested in faceting is likely to have seen the double image that is visible through a crystal of calcite. Most know that this is due to a property called 'birefringence' and that highly birefringent materials are often prone to cleavage and hard to polish.

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What is a birefringence?

Birefringence is a property of certain materials where they exhibit different refractive indices depending on the polarization and propagation direction of light passing through them. This causes double refraction, splitting a single ray of light into two separate rays that travel at different speeds. Birefringence is commonly found in crystals, certain plastics, and liquid crystals.


What does the optical term 'birefringence' mean?

Birefringence is a property of anisotropic materials where light traveling through the material splits into two different paths with different refractive indices. This causes the light to be doubly refracted, resulting in the formation of two distinct refracted rays. Birefringence is commonly observed in materials like calcite and quartz.


What is vacuum birefringence?

Vacuum birefringence is a phenomenon predicted by quantum electrodynamics (QED) where the presence of a strong electric field in a vacuum can induce polarization effects and split light into two components with different refractive indices. This effect has not yet been experimentally observed due to the challenges in creating electric fields intense enough to produce measurable changes in the vacuum.


What is the birefringent?

Birefringence is the optical property of a material where light is split into two perpendicular polarization components that travel at different speeds. This causes the light to be refracted in two different directions, resulting in double refraction. Birefringent materials are commonly used in polarizing filters and optical devices.


What are photoelastic materials?

Photoelastic materials are transparent materials that change their optical properties when subjected to mechanical stress. When stress is applied, these materials exhibit a birefringence effect, which causes them to change colors or patterns under polarized light. They are commonly used in stress analysis and to visualize stress distributions in mechanical components.

Related Questions

How do you reduce birefringence in DVD?

first you have to determinate in witch step of the process you gett the birefringence. Usually it is in the molding of layer-0


What is a birefringence?

Birefringence is a property of certain materials where they exhibit different refractive indices depending on the polarization and propagation direction of light passing through them. This causes double refraction, splitting a single ray of light into two separate rays that travel at different speeds. Birefringence is commonly found in crystals, certain plastics, and liquid crystals.


What does the optical term 'birefringence' mean?

Birefringence is a property of anisotropic materials where light traveling through the material splits into two different paths with different refractive indices. This causes the light to be doubly refracted, resulting in the formation of two distinct refracted rays. Birefringence is commonly observed in materials like calcite and quartz.


How do you determine the birefringence of any minerals?

Birefringence of minerals can be determined by measuring the difference in refractive indices in different crystal directions. This is typically done using a polarizing microscope equipped with conoscopic or interference filters to reveal interference colors. The interference colors observed can then be used to calculate the birefringence of the mineral.


What is an unusual use for calcite?

cloaking device, they use calcite's birefringence to bend light around objects seen with the human eye.


What is a Berylometer?

A Berylometer is a device used to measure the birefringence of materials, particularly gems or minerals such as beryl. Birefringence is the difference in refractive index between light polarized in different directions. The Berylometer helps gemologists and scientists analyze the optical properties of beryl gemstones.


What is vacuum birefringence?

Vacuum birefringence is a phenomenon predicted by quantum electrodynamics (QED) where the presence of a strong electric field in a vacuum can induce polarization effects and split light into two components with different refractive indices. This effect has not yet been experimentally observed due to the challenges in creating electric fields intense enough to produce measurable changes in the vacuum.


What has the author Evaristo Riande written?

Evaristo Riande has written: 'Dipole moments and birefringence of polymers' -- subject(s): Dipole moments, Double Refraction, Electric properties, Optical properties, Polymers


What has the author Myron W Evans written?

Myron W. Evans has written: 'Relativistic theory of polarisation and magnetization due to an electromagnetic field' 'The light magnet, coupling of electronic and nuclear angular momenta in optical NMR and ESR' 'Electron spin and nuclear magnetic resonance in the presence of a circularly polarised laser' 'Part 2, Modern Nonlinear Optics' 'A theoretical development of the optical Zeeman effect' 'Numerical solution of the Maxwell equations for circular and forward backward birefringence/dichroism' 'Relativistic birefringence and dichroism'


How do you distinguish between olivine and pyroxene under microscope?

Olivine typically appears colorless to pale green under a microscope and has distinct cleavage patterns and high birefringence. Pyroxene, on the other hand, appears as dark to light green or brown, often showing two distinct cleavage angles at nearly 90 degrees and moderate to low birefringence. Additionally, pyroxene crystals tend to be longer and more elongated compared to olivine.


The mineral calcite contains calcium carbon and oxygen Calcite is an example of a or an?

The mineral calcite is an example of a carbonate mineral. Carbonate minerals contain the carbonate ion (CO3) in their chemical composition.


What is a mineral that displays bifringence?

Calcite is a common mineral that displays birefringence. When viewed under a polarizing microscope, calcite shows double refraction, meaning it splits light into two beams that travel at different speeds, resulting in colorful interference patterns.