Scientific principle behind a laser, Physics

Assignment Help:

Scientific principle behind a laser:

The basic scientific principle behind a laser was first put forward by Dr. Charles H.

Towns in 1954 which later led to the development of the laser first developed laser introduced in the year of 1960.

Laser is simply a source of light, but the light has extra - ordinary properties. Laser light is distinguished from an ordinary light source by its

(1) Coherence

(2) Directionality

(3) Monochromaticity and

(4) High intensity.

Lack of coherence makes ordinary light an optical noise. The process of achieving 'population inversion' is called PUMPING. Laser is an extra - ordinary light emitted under stimulated and amplified conditions so that the beam is characterized by high intensity, specific directionality, high monochromaticity and high degree of coherence.

 


Related Discussions:- Scientific principle behind a laser

Discuss the constituents of developer, Question 1. Discuss the constitu...

Question 1. Discuss the constituents of developer 2. List the different types of X-ray cassettes .Explain the construction of the X-ray cassette 3. What is contrast? Expl

Define the term multi-mode fibre shortly, Define the term multi-mode fibre ...

Define the term multi-mode fibre shortly. Multi-mode fibre: This type of fibre permits more than one mode to travel by this. As this has to permit more number of modes to tr

Difference between linear model and nonlinear model, 1. What is the differe...

1. What is the difference between finite elements, finite difference, and finite volume? 2. What is stability, consistency, and convergence of a difference equation? 3. What

Evaluate the diameter of dark ring, In a Newton's ring experiment with air ...

In a Newton's ring experiment with air film the diameter of nth and (n - 5)th dark rings are 12.2 mm and 8.1 mm respectively. Evaluate the diameter of (n + 5)th dark ring

Assignment, to find coefficient of viscosity of a liquid using stok''s law

to find coefficient of viscosity of a liquid using stok''s law

Centrifugal pseudoforce, Centrifugal pseudoforce A pseudoforce which oc...

Centrifugal pseudoforce A pseudoforce which occurs while one is moving in consistent circular motion. One feels a "force" directed outward from the center of motion.

Rotational equilibrium, A light horizontal bar has a length of 3m. If a 102...

A light horizontal bar has a length of 3m. If a 102-kg mass is placed 80 cm away from the left end of the bar and a 109-kg mass is placed 2.15 m from the left end, where must it be

Vectors representing forces, Vectors Representing Forces A force can be...

Vectors Representing Forces A force can be represented by a vector (drawn as an arrow). The arrow's length is related to the size of the force and the arrow's direction shows y

Elliptical paths of celestial bodies, The project consists of a word proces...

The project consists of a word processed (typed) report submitted by the project report due date. Late submissions are penalized 10% of the mark per day, including Saturdays and Su

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd