Talk:Electromagnetically induced transparency

does anybody know where they found the part about stopping and turning around?69.22.224.249 22:03, 21 December 2005 (UTC)

Queries posted 1315 PST by carmicheal99; please add comments in new color.

A good start to answering your question would to learn about the associated electric and magnetic field parts and how they spin or correlate to one another. Think about it like this, on a gyroscope you have precesion or a turning 90 degrees relative to the axis and force, in other words the actual energy of the mechanism is stored in a plane perpendicular to the spin. For a better understanding please refer to:   http://en.wikipedia.org/wiki/Electromagnetic_forming

The way they "stopped" the light was by drawing the energy out of the light using destructive wave interaction. To restart the light they used a constructive wave pattern to re-energize the photons to behave normally.

Query: When the light is slowed down an enormous amount of energy is stored in the matrix of the material, can this energy be:  a) detected, b) captured, c) utilized, and d) stored?

Albeit an enormous amount of energy is required to create the conditions for "stopped" light; are other means available to use this concept as an energy source? An example would be solar induced laser light that many high school students see in the classroom.

=hmm= Any one notice the jagged red line under the 'Vee' in the image on the subject? lol

=Applications of EIT= Anybody know much about the current applications of EIT? Using the googly I was able to find a paper by HP labs doing some interesting stuff. Anything else?---One Son of Ole 06:02, 23 January 2007 (UTC)

EIT and ATS
I recently wrote in my sandbox for a class I am taking and thought, perhaps, the information in it would be useful to expand the connection between EIT and ATS. You can find it here. It describes that these two effects can be separated into intensity regimes, at least in certain configurations, with regards to the coupling laser. Hope it ends up being helpful!

I have posted a similar note about this in the ATS talk, since it pertains to that as well. — Preceding unsigned comment added by Inaginni (talk • contribs) 21:39, 28 January 2016 (UTC)


 * I have a doubt that EIT effect was first proposed in 1990. McCall had a paper in 1969 proposing self induced transparancy effect via carefully constructed indicident field. The later research has shown that any signal whose dynamics is faster than dephasing time will lead to SIT effect at sufficient amplitude. I am not sure pioneers listed in this Wiki page are correct. 86.19.244.178 (talk) 16:58, 8 November 2023 (UTC)
 * these are actually two quite different effects: self-induced transparency is seen for short, strong pulses interacting with an ensemble of two-level atoms so that absorption and reemission allows the pulse to propagate without losses (cf. ). EIT is a quantum effect seen with a three-level systems (in the simplest case) in which a weak probe field is not absorbed due to the pump moving the atoms to a dark state. There's even a paper discussing how both effects can be realized together . Harris (1990) is cited as the one who first observed in text books like Scully, Quantum Optics or reviews like . --Qcomp (talk) 20:55, 8 November 2023 (UTC)
 * Barry Sanders had a paper on relation between EIT and ATS, but these are indeed two different effects. Ymblanter (talk) 21:53, 8 November 2023 (UTC)