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

POTENIAL DIVIDER AND CALCULATION ABOUT LENS, IN PHYSICS B OCR THE POTENTIAL...

IN PHYSICS B OCR THE POTENTIAL DIVIDER AND CALCULATION ON LENS ARE TRICKY. HOW DO I APPROACH AND UNDERSTAND QUESTIONS?

Preliminary process flow diagram-thermo, Task description You are taske...

Task description You are tasked with completing the preliminary design of a plant for the production of dimethyl ether from methanol. This task involves a complete material and

What is Electrolytic cell, Normal 0 false false false E...

Normal 0 false false false EN-IN X-NONE X-NONE MicrosoftInternetExplorer4 Normal 0

Einstein''s photoelectric equation, Q.   What is Einstein's photoelectric e...

Q.   What is Einstein's photoelectric equation? Explain the laws of photoelectric effect with the help of this equation. Photoelectric Effect : The emission of electron from

To find velocity of spacecraft and acceleration, find acceleration of space...

find acceleration of spacecraft will changed during journey and velocity and displacement if formula for displacement " s " and velocity V S=ut +1/2 at.... (t to power 2) V= u+at

Draw the graphs showing variation of inductive reactan, Illustrate the grap...

Illustrate the graphs showing variation of inductive reactance and Capacitive reactance with frequency of applied a.c. source.

What are coherent sources, Q. What are coherent sources? Two sources a...

Q. What are coherent sources? Two sources are alleged to be coherent if they emit light waves of the same wave length and start with same phase or have a constant phase differ

Measure the percentage change in its resistance, A cylindrical metallic wir...

A cylindrical metallic wire is stretched to enhance its length by 5%. Measure the percentage change in its resistance.

Describe kirchoffs voltage law, Describe Kirchoff's Voltage Law? Ans. I...

Describe Kirchoff's Voltage Law? Ans. It describe, " the sum of the Voltage drops around a DC series circuit same to the applied voltage or source. E = E 1 + E 2 = E 3 .

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