MYTUTOR SUBJECT ANSWERS

460 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

70 SUBJECT SPECIALISTS

£24 /hr

Hannah G.

Degree: Physics (Masters) - Manchester University

Subjects offered: Physics, Maths+ 1 more

Physics
Maths
Chemistry

“Third year physics student looking to help GCSE and A-level students improve their grades! ”

£20 /hr

Ross W.

Degree: MPhys (Masters) - Durham University

Subjects offered: Physics, Maths+ 4 more

Physics
Maths
Further Mathematics
Chemistry
Biology
-Personal Statements-

“I am a second year student studying Physics at Durham University (very pleased with my first year results - got a 1st - yay!) I have always been fascinated by science and maths and their ability to explain the world around us. What Do...”

£22 /hr

Prina S.

Degree: Environmental Geoscience (Masters) - Bristol University

Subjects offered: Physics, Maths+ 2 more

Physics
Maths
Geography
Biology

“Hello there! My name is Prina and I'm a first year Environmental Geoscience at the University of Bristol. My love for science was instilled in me by those who taught me and I hope to share my passion in the same way through exciting an...”

About the author

£26 /hr

Konrad E.

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

Subjects offered: Physics, Maths+ 2 more

Physics
Maths
Further Mathematics
Chemistry

“I'm studying Natural Sciences (Phys) at Cambridge. I enjoy tutoring science and maths at GCSE and A-Level, and sharing my experience.”

You may also like...

Posts by Konrad

How does electromagnetic induction produce a current?

How does stimulated emission work?

Other A Level Physics questions

There is a train A. On the roof of A is another frictionless train B of mass Mb. A mass Mc hangs off the front of A and is attached to the front of B by rope and frictionless pulley. How fast should A accelerate so that B wont fall off the roof of A.

A given star has a peak emission wavelength of 60nm, lies 7.10*10^19m away and the intensity of its electromagnetic radiation reaching the Earth is 3.33*10^-8Wm^-2. Calculate the star's diameter

What is the Quark structure, Baryon number, and antiparticle of a kaon, K+, which has a strangeness of 1.

How does energy flow from voltage source to resistor in a simple DC circuit?

View A Level Physics tutors

Cookies:

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

mtw:mercury1:status:ok