The phenomenon by which light traveling from a high to a low material will reflect from the optical interface if the incident angle is greater than the critical angle.
When the angle of incidence of light striking the boundary surface of a substance exceeds the critical angle, the result is total internal reflection.
The phenomenon in which light is trapped (totally internally reflected) in one medium, because the refracted ray cannot exist (mathematically, according to Snell's Law, the sine function becomes greater than 1.0). Occurs when light traveling from a denser medium to a rarer medium strikes the interface at an angle of incidence greater than the critical angle for that interface. When this condition is met, light cannot be transmitted through the interface and so is all reflected back into the original material. The image to the left shows TIR just starting to occur, as the angle of incidence equals the critical angle. The critical angle and total internal reflection are covered on this page (and the next one) of this module. Not to be confused with total reflection.
results when the angle of incidence is greater than the critical angle of a medium. Light does not passes through and refract, rather it simply reflects off the boundary surface.
The trapping of light by refraction and reflection at critical angles inside a semiconductor device so that it cannot escape the device and must eventually be absorbed by the semiconductor.
When a light beam strikes the interface of two media of different diffractive indices, at an angle beyond the critical angle, all of the light energy is reflected back into the incident medium. In this situation, an 'evanescent field' develops at the interface with an energy that decreases exponentially into the medium with the lower refractive index. This allows selective excitation of fluorophores located within ~100 nm of the interface.
the process in which light traveling from a material with a higher index of refraction to a material with a lower index of refraction is reflected at the boundary and no light actually crosses the boundary.
results when the angle of incidence (of light going from a more dense medium to a less dense medium) exceeds the critical angle and all the incident light is reflected back into the denser medium
A phenomenon occuring when light is incident on an interface between two transparent materials at a very shallow angle. The light must be traveling through a medium with a higher index of refraction than the neighbouring medium. At the interface, all of the light is reflected back into the surrounding material and none of the light is refracted out into the neighbouring material.
Reflection of light back into a material after reaching an interface with a material of a lower refractive index at an angle at or above the critical angle. Total Internal Reflection occurs at the core/cladding interface within a fiber.
Reflection that occurs when a light ray traveling in one material hits another material and reflects back into the original material without any loss of light.
Confinement of light into the core of a fiber by the reflection off the core-cladding boundary.
Total internal reflection occurs when light passes from a dense material into a less dense material, and the angle of incidence is greater than the critical angle. In this situation all the light is reflected back into the dense material. Total Internal Reflection
The total reflection of light travelling from one medium to another of lower refractive index.
An optical effect when light travelling in a higher refractive index material hits a boundary with a lower refractive index, and is reflected totally. Important when calculating diamond cutting angles.
The phenomenon of light rays reflecting at the core-clad boundary of an optical fiber, allowing transmission along the length of the fibre. It occurs when the angle of incidence is lower than the critical angle.
Also known as TIR. Total Internal Reflection occurs when light striking the barrier refracts at an angle greater or equal to 90 degrees from the normal. As a result, all of the light reflects off of the barrier between the mediums.
If the angle of incidence of light attempting to cross from a high index to a low index medium is larger than that of the critical angle, then no refraction can happen and so the light is totally reflected. Also known as TIR.
Total reflection of light back into a material when it strikes the interface of a material having a lower refractive index at an angle below a critical value.
When light is entirely reflected inside a transparent material. Waves
Characteristic of glass fiber that completely reflects the light off the cladding and back into the core, without any loss of light.
Total internal reflection is the mechanism by which an optical fiber guides light. At the interface between the core and cladding (which have different indices of refraction), there exists a critical angle such that light incident at any smaller angle will be entirely reflected (none is transmitted into the cladding where it is lost). The critical angle depends on both the index of refraction in the core and in the cladding. See also: index of refraction, core, cladding, fiber
The reflection that occurs when light strikes an interface at an angle of incidence (with respect to the normal) greater than the critical angle.
Total internal reflection is an optical phenomenon that occurs when light strikes a medium boundary at a steep angle. If the refractive index is lower on the other side of the boundary no light can pass through, so effectively all of the light is reflected. The critical angle is the angle of incidence above which the total internal reflection occurs.