Monday, February 8, 2010

Defination of " Laser"

Ada pelajar yang tanya saya pasal "laser" . Disini saya "paste"kan apakah dimasudkan dengan "L" "A" "S" "E" "R"

'Laser"

Light amplification by stimulated emission of radiation (LASER or laser) is a mechanism for emitting electromagnetic radiation, typically light or visible light, via the process of stimulated emission. The emitted laser light is (usually) a spatially coherent, narrow low-divergence beam, that can be manipulated with lenses. In laser technology, "coherent light" denotes a light source that produces (emits) light of in-step waves of identical frequency and phase. [1] The laser’s beam of coherent light differentiates it from light sources that emit incoherent light beams, of random phase varying with time and position; whereas the laser light is a narrow-wavelength electromagnetic spectrum monochromatic light; yet, there are lasers that emit a broad spectrum light, or simultaneously, at different wavelengths.

Harap ini membantu anda. T kasih

No comments:

Post a Comment