Latest Articles

RSS

Bandwidth - Definition and Introduction

Bandwidth is a width of a wavelength range of a specific part of the spectrum which transmits incident energy via a filter.

20 Jun 2014

Optical Pumping - Definition and Applications

An optical fiber is a flexible and transparent material made out of glass and extruded in the form of fibers. Optical fibers are used as wave guides or light pipes for transmitting light between the two ends of the fiber. Optical fiber cables have a thickness that is slightly greater than that of human hair.

19 Jun 2014

Optical Fiber - Definition and Applications

An optical fiber is a flexible and transparent material made out of glass and extruded in the form of fibers.

19 Jun 2014

Radiance - Deinition and Introduction

Radiance of a source is the power that is radiated from a surface within a solid angle and passing through a cross-sectional area. Radiance may be described as the power traversing at a point in a specified direction per unit area perpendicular to the direction of travel. Solid angle is the area projected on a unit sphere centered at that point. The symbol used for radiance is L having unit as Watt/ (m2sr1).

19 Jun 2014

Thermoelectric Cooling - Definition and Applications

Thermoelectric cooling is a process of eliminating heat energy from a device, component or medium with the application of constant voltage between two dissimilar semiconductors or electrical conductors.

19 Jun 2014

Superpulse Lasers - Definition and Applications

Superpulse is a specific waveform commonly used in CO2 laser systems either in a pulsed or continuous pattern. Superpulsed lasers are capable of emitting several thousand bursts of power per second.

19 Jun 2014

Radiant Intensity - Definition and Introduction

Radiant intensity may be defined as the amount of power emitted by a source in a particular direction per unit solid angle.

19 Jun 2014

Specular Reflection - Definition

There are two types of reflection: specular and diffuse. Specular reflection is a type of surface reflectance often described as a mirror-like reflection of light from the surface. In specular reflection, the incident light is reflected into a single outgoing direction. The name specular is derived from the Latin word speculum, meaning mirror.

19 Jun 2014

Optical Transmittance - Definition and Formula

Transmittance is the fraction of incident light of a specific wavelength which passes via a sample. It is also defined as the ratio of the incident power (P) to the resulting power (P0).

19 Jun 2014

Beam Combining - Definition and Applications

Beam combining is done through a number of processes in order to scale up the power and radiance of laser sources. There are a number of techniques that allow the build up of high power laser sources that result in high beam quality and high brightness.

19 Jun 2014