RP Photonics logo
RP Photonics
Encyclopedia
Consulting Software Encyclopedia Buyer's Guide

Short address: rpp-con.com

Dr. Paschotta, the founder of RP Photonics, supports your R & D with his deep expertise. Save time and money with efficient support!

Short address: rpp-soft.com

Powerful simulation software for fiber lasers and amplifiers, resonator design, pulse propagation and multilayer coating design.

Short address: rpp-enc.com

The famous Encyclopedia of Laser Physics and Technology provides a wealth of high-quality scientific and technical information.

Short address: rpp-bg.com

In the RP Photonics Buyer's Guide, you easily find suppliers for photo­nics products. As a supp­lier, you can profit from enhanced entries!

Learn on lasers and photonics every day!
VL logo part of the
Virtual
Library

Superradiance

<<<  |  >>>  |  Feedback

Buyer's Guide

In the RP Photonics Buyer's Guide you can find plenty of suppliers for hundreds of photonics products.

Definition: collective emission of an ensemble of atoms or ions after coherent excitation

German: Superradianz

Superradiance is a phenomenon of collective emission of an ensemble of excited atoms or ions, first considered by Dicke [1]. It is similar to superfluorescence, but it starts with the coherent excitation of the ensemble, usually with an optical pulse. This coherence (i.e. a well-defined phase relationship between the excitation amplitudes of lower and upper electronic states) leads to a macroscopic dipole moment. The maximum intensity of the emitted light scales with the square of the number of atoms, because each atom contributes a certain amount to the emission amplitude, and the intensity is proportional to the square of the amplitude.

As the number of photons rises in a kind of chain reaction, Dicke later (in a patent application) described the phenomenon of superradiance as an optical bomb.

Bibliography

[1]R. H. Dicke, “Coherence in spontaneous emission processes”, Phys. Rev. 93 (1), 99 (1954)
[2]N. E. Rehler and J. H. Eberly, “Superradiance”, Phys. Rev. A 3 (5), 1735 (1971)
[3]R. Bonifacio et al., “Quantum statistical theory of superradiance. I”, Phys. Rev. A 4 (1), 302 (1971)

See also: superfluorescence

Category: quantum optics

How do you rate this article?

Your general impression: don't know poor satisfactory good excellent
Technical quality: don't know poor satisfactory good excellent
Usefulness: don't know poor satisfactory good excellent
Readability: don't know poor satisfactory good excellent
Comments:

Found any errors? Suggestions for improvements? Do you know a better web page on this topic?

Spam protection: (enter the value of 5 + 8 in this field!)

If you want a response, you may leave your e-mail address in the comments field, or directly send an e-mail.

If you like our website, you may also want to get our newsletters!

arrow

Have you seen the
RP Photonics Buyer's Guide?

It lists many hundreds of suppliers for photonics products, and is just one mouse click away from the extremely popular Encyclopedia of Laser Physics and Technology:

Our Buyer's Guide is what you need:

And surely you will remember where to find this useful resource again!

Suppliers: get your free entries, and enhanced visibility with paid entries.

Tailored Training Courses

Within one or two days, a tailored training course at your location can boost the competence of your team. An investment which can pay back very rapdily!

This resource is provided by
RP Photonics Consulting GmbH.

You can get technical consulting from the author, Dr. Rüdiger Paschotta.

Thin-film Optics Software

Analyze and optimize dichroic and dispersive mirrors, AR coatings, filters, thin-film polarizers, rugate filters, VECSELs etc. with RP Coating!

coating design

Free Fiber Optics Software!

RP Fiber Calculator software

RP Fiber Calculator – a convenient tool for calculations on optical fibers -- offered for free
let us celebrate the 10-year anniversary of RP Photonics!

RP Photonics Buyer's Guide

Do you know a better place to find suppliers for photonics items? Search by product or by supplier.

Suppliers, show your products with free or enhanced entries!