MYTUTOR SUBJECT ANSWERS

662 views

How does stimulated emission work?

Stimulated emission occurs under the specific circumstances of a population inversion, that is, when there are more electrons in a higher energy level than one below it. There will be a certain energy difference between these two energy levels.

When a photon with energy equal to the gap passes, it stimulates an electron to drop down to the lower energy level, emitting the energy it lost as a photon with the same wavelength, phase and direction (coherent with) the starting photon.

This differs from an electron spontaneously dropping down an energy level in that the photon is not emitted randomly. If this occurs many times, as in a laser, intense, coherent and monochromatic (one wavelength) is produced.

Konrad E. GCSE Chemistry tutor, GCSE Biology tutor, A Level Chemistry...

2 years ago

Answered by Konrad, an A Level Physics tutor with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

81 SUBJECT SPECIALISTS

£24 /hr

Joe C.

Degree: General Engineering (Masters) - Durham University

Subjects offered:Physics, Science+ 2 more

Physics
Science
Maths
Computing

“Masters student at Durham University, ready to help you excel at Maths and Science ”

£36 /hr

James G.

Degree: Mathematical Physics (Doctorate) - Nottingham University

Subjects offered:Physics, Maths+ 2 more

Physics
Maths
Further Mathematics
.STEP.

“Currently a 3rd year PhD student in Mathematical Physics. I'm very passionate about teaching as well as my subject area. Look forward to hearing from you.”

Timothy N. A Level Design & Technology tutor, GCSE Design & Technolog...
£26 /hr

Timothy N.

Degree: Architecture and Environmental Engineering (Masters) - Nottingham University

Subjects offered:Physics, Science+ 3 more

Physics
Science
Maths
Design & Technology
-Personal Statements-

“Hi there, I have a passion for helping students achieve, and believe that with my years of experience tutoring, we will be able to surpass the grades you want!”

About the author

£36 /hr

Konrad E.

Degree: Natural Sciences: Physical (Masters) - Cambridge University

Subjects offered:Physics, Maths+ 2 more

Physics
Maths
Further Mathematics
Chemistry

“I am studying Natural Sciences at Cambridge, and have been tutoring for 5 years now. I focus on understanding, and finding explanations that work for you.”

You may also like...

Posts by Konrad

How does electromagnetic induction produce a current?

How does stimulated emission work?

Other A Level Physics questions

How can an object be accelerating when it's velocity is constant, and how does centripetal acceleration work.

How would I resolve forces on a slope?

A particle is accelerated uniformly from rest, so that after 10 seconds it has achieved a speed of 15 m/s. Find its acceleration and the distance it has covered.

Show Maxwell's equations in free space satisfy the wave equation

View A Level Physics tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok