LASER stands for Light Amplification by Stimulated Emission of Radiation. It is one of the outstanding inventions of 20th century. The theoretical basis for the development of laser was provided by Albert Einstein in 1916, when he predicted the possibility of stimulated emission. Charles Townes and his coworkers put Einstein’s prediction for practical realization inContinue reading “Introduction to LASER”
Category Archives: Engineering Physics
OPTICAL FIBRES
Introduction: Fibre optics is a technology in which signals are converted from electrical form into optical signals, transmitted through a thin glass fibre and reconverted into electrical signals. Optical fibre is a cylindrical waveguide made of a transparent dielectric (glass or plastic), in which light waves are guided along its length by total Internal reflection.Continue reading “OPTICAL FIBRES”
Fantastic Physics 