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

Pressure, a drawing pin is pushed against a wooden table with force of 10N....

a drawing pin is pushed against a wooden table with force of 10N. calculate the pressure exerted by the pin at a point on table if area of point is 0.01m square

What is flux or magnetic lines of force?, There are imaginary lines or path...

There are imaginary lines or path of the field in the given direction. The lines of force are assumed to make a closed path beginning from N pole and ending at S pole with no loss.

Why isn''t copper used as a heating element?, It makes sense that copper sh...

It makes sense that copper should be used because it could heat up faster, making the event more efficient.

Kinematics, An aereplane has velocity 500m/s with respect to air. Wind blow...

An aereplane has velocity 500m/s with respect to air. Wind blows with velocity 20m/s along north. Then in what direction pilot should be heading so as to go along North-east direct

Evaluate the magnitude and direction of the total momentum, Two arrows are ...

Two arrows are fired horizontally with the same speed of25.0 m/s. Each arrow has a mass of0.116 kg. One is fired due east and the other due south. Find the magnitude and direction

Work out the voltage, Work out the  voltage for the following arrangement ...

Work out the  voltage for the following arrangement of 1.5V cells: ( Solve problems with cells in series, parallel and series-parallel)

Motion of a swing, Motion of a swing Periodic Motion :  Motion that re...

Motion of a swing Periodic Motion :  Motion that repeats itself in equal intervals of time is known as periodic motion.

Temperature, If the temperature in a room is 84 degrees at the floor what w...

If the temperature in a room is 84 degrees at the floor what will it be at a 30 foot ceiling

Davisson-germer experiment, Davisson-Germer experiment (C.J. Davisson, L.H....

Davisson-Germer experiment (C.J. Davisson, L.H. Germer; 1927) An experiment which conclusively confirmed the wave nature of electrons; diffraction patterns were observed throu

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