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

Archimedes principle, Archimedes' principle A body which is submerged i...

Archimedes' principle A body which is submerged into a fluid is buoyed up through a force equal in magnitude to the weight of the fluid which is displaced, and directed upward

What colour of light is the alteration in direction red, A ray of white lig...

A ray of white light in air passes by a glass plate. Refraction takes place. The direction in which the light is travelling changes. For what colour of light is the alteration in d

Temporal coharence, tell me about the terms of temporal coharence

tell me about the terms of temporal coharence

Electronics, tell the fixed transistor bias and describe the design

tell the fixed transistor bias and describe the design

Electrostatics – two kinds of charges, Electrostatics – Two kinds of Charge...

Electrostatics – Two kinds of Charges     Introduction: If a glass rod is rubbed with silk cloth it acquires a positive charge, while silk cloth acquires an equal amo

Motion in one dimension, A tortoise can run with a speed of 0.12 m/s, and a...

A tortoise can run with a speed of 0.12 m/s, and a hare can run 20 times as fast. In a race, they both start at the same time, but the hare stops to rest for 4.0 minutes. The torto

Define polarization, Polarization: The dipole moment per unit volume of th...

Polarization: The dipole moment per unit volume of the solid is the sum of all the individual dipole moments within that volume and is called as 'Polarization' P of the solid.

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