What is Gyrotropic?
What is Gyrotropic?
Noun. gyrotropy (uncountable) (physics) The helical movement of electromagnetic radiation through a chiral material.
What is a magneto optic material?
A material is classified as magneto-optical (MO) if it affects the propagation characteristics of light when an external magnetic field is applied on it. For ferromagnetic materials, which are composed by magnetically ordered domains, MO phenomena may also occur in the absence of an external magnetic field.
What is magneto-optical properties?
The presence of magnetic particles in the composites makes them susceptible to external magnetic field. Therefore, the alignment of the geometrically anisotropic particles, leading to birefringence, can be generated not only by the motion in the fluid but also by the applied magnetic field.
What is the Faraday effect used for?
The Faraday effect has applications in measuring instruments. For instance, the Faraday effect has been used to measure optical rotatory power and for remote sensing of magnetic fields (such as fiber optic current sensors).
What is magneto-optical recording?
MO or magneto-optical recording is a method of storing and retrieving data using a laser and a magnet. The drive laser heats the magnetic surface to a high enough temperature, allowing the polarization of the disk to be modified with a magnet for more precisely written data.
How does a magneto-optical trap work?
Magneto-optical traps (MOTs) allow for cooling the gases consisting of neutral atoms down to the temperatures around 100µK. Optical cooling process relies on slowing down the atoms due to transfer of momentum from the beam of resonant laser photons.
What is magneto optic modulator?
This modulator is a hybrid device, where a current- driven magneto-optically active crystal (cerium substituted yttrium iron garnet, or Ce:YIG) is bonded to a high-quality silicon microring resonator.
Which gas is used in Faraday method?
Pioneer work on the liquefaction of gases was carried out by the English scientist Michael Faraday (1791-1867) in the early 1820s. Faraday was able to liquefy gases with high critical temperatures such as chlorine, hydrogen sulfide, hydrogen bromide, and carbon dioxide by the application of pressure alone.
What is Faraday experiment?
When Michael Faraday made his discovery of electromagnetic induction in 1831, he hypothesized that a changing magnetic field is necessary to induce a current in a nearby circuit. To test his hypothesis he made a coil by wrapping a paper cylinder with wire.
What is Mo device?
Mo. Devices means the total number of Load Control Devices within a Device Population installed during the Program Month.
What is MO storage?
magneto-optic storage (M-O storage) A storage method, used in rewritable optical disk drives, that combines magnetic and optical recording techniques. The disk is coated with film that initially is uniformly magnetized.
What is a laser atom trap?
Laser cooling and trapping is the ability to cool atoms down to unprecedented kinetic temperatures, and to confine and support isolated atoms in “atom traps”. This unique new level of control of atomic motion allows researchers to study the behavior of atoms and quantum mechanical properties.
What is an optical dipole trap?
Optical tweezers (originally called single-beam gradient force trap) are scientific instruments that use a highly focused laser beam to hold and move the microscopic and sub-microscopic objects like atoms, nanoparticles and droplets, in a manner similar to tweezers.
How does an AOM work?
How Does an Acousto-Optic Modulator Work? Acousto-optic modulator typically uses a transparent crystal or piece of glass as a medium for light propagation. An electric signal then drives an attached transducer to vibrate, therefore generating a sound wave within the cell.
What is magneto-optical Faraday rotation?
The Faraday effect is a magneto-optical (MO) phenomenon by which the polarization direction of linearly polarized light is rotated when passing through a transparent material with the application of a magnetic field along the direction of light propagation.
What are the different methods used for liquefaction of gases?
In general, gases can be liquefied by one of three methods: (1) by compressing the gas at temperatures less than its critical temperature; (2) by making the gas do some kind of work against an external force, which causes the gas to lose energy and change to the liquid state; and (3) by making gas do work against its …
What is Faraday method?
The method is sensitive and highly reproducible and can be applied to single crystals. The force is measured as a weight change, using a torsion balance. An alternative method for measuring magnetic susceptibility is the Gouy balance.
What is the value of Faraday?
The known Faraday constant 96,485 C/mol denoted by the symbol F, or also called 1 F, corresponds to the amount of electricity that is carried by 1 mol of electrons.
What is MOC and MTC?
Mobile Terminated Call ( MTC ) refers to a call within a telephone network in which the destination terminal is a mobile phone . The opposite term, in which the calling terminal is a cell phone, is called Mobile Originated Call ( MOC ).