Q switching in laser is a technique of reducing giant Plus ( i.e short duration high energy plus). It is achieved by pumping the gain or active medium in the absence of the mirrors of the cavity or resonator ( i.e the feedback mechanism ) and then the mirrors of the cavity are switched on … Read more
Before discussing Argon ion laser we have to know about ion laser because Argon ion laser is one of the types of ION LASER. An ion laser is a gas laser in which ionized gas is used as the active or lasing medium. The electrical pumping method is used to achieve the population inversion in … Read more
He-Ne laser, also known as Helium-Neon laser, is a type of gas laser that emits red light with a wavelength of 632.8 nm. This laser was invented in 1961 by Ali Javan, William R. Bennett Jr., and Donald Herriott at Bell Telephone Laboratories. He-Ne laser is a gas laser that emits red light having wavelength … Read more
A laser is an electronic device that emits electromagnetic radiation. The term LASER is an acronym for Light Amplification by Stimulated Emission of Radiation. The most significant characteristics of laser are : Directionality. High intensity. Extraordinary monochromaticity. The high degree of coherence as compared to the light from the ordinary sources of light like incandescent … Read more
In this laser semiconductors like GaAs, InP, GaN etc. are used as the active medium and population inversion is achieved by forward biasing the semiconductor. Semiconductor Laser Construction and Working Semiconductor Diode Laser Principle Semiconductor lasers are basically PN junction diode. When a p-type semiconductor (has an excess of holes) is in intimate contact with … Read more
Definition of Nd:YAG Laser ND YAG laser is the short form used for Neodymium Yttrium Aluminum Garnet. Neodymium ion (Nd3+) Is a very effective laser medium. When it is doped in YAG (YAG which Y3Al5O12 ) host material or glass host material. In ND: YAG laser, The laser emission takes place at 1.06μm. Whereas in … Read more
Application of laser Laser is an intense, monochromatic, concentrated and coherent beam of light. It can be focused to a very small area. And hence the laser generates very high intensity in the area of focus. Because of this feature of characteristics, laser find widespread application. In the field of industry, medicine, communication, Defence, astronomy, … Read more
Ruby Laser is a type of solid-state laser that operates on the principle of stimulated emission to produce a coherent and monochromatic beam of light. Developed in 1960, Ruby Laser was the first successful laser to be constructed and has since found numerous applications in scientific research, medicine, and industry. In this article, we will … Read more