Photonics in Optics

The term photonics was first developed as an outgrowth of the practical semiconductor light emitters. It is the science which belongs to physical science department which gives the idea of light (photon) generation, detection and manipulation through various processes like transmission, emission, signal processing, modulation, amplification, switching and sensing. Light is being studied since hundred years by the scientists from which they have discovered that the colours of the rainbow are just a small part of the entire light wave range known as the electromagnetic spectrum.