Modern Applications of Laser
LASER Introduction The term "laser" is an acronym for "Light Amplification by Stimulated Emission of Radiation". It is an intense beam of light which can be visible or invisible in case of ultraviolet and infrared radiation. A laser device emits a beam of light through a process of optical amplification based on the stimulated emission of electromagnetic radiation. This device not only generates the beam of light, but also amplifies or increases the intensity of this beam of light. Characteristics of Laser 1. Monochromatic: A laser consists of a single wavelength. As a result, the laser beam can be focused onto a smaller area for longer distances without compromising on the intensity of the laser beam. 2. Coherent: This means the wavelengths of the laser beam are in phase in space and time 3. Directionality or Collimation: Unlike ordinary light which spreads in all directions, leaser beams are highly directional and easy to focus wi