Parametric Amplification

[Epitectus]

Could anyone explain to me the physics behind parametric amplification

[Oxygen]

No.

[666]

Just smack Oxy around a few times and she will leave you alone.

Bellow I have pasted an explanation from a web site. They also have a prety good diagram to help illistrait it a little better. It's by Dr. Peter Dietrich, he has even left his email on the web site. The web site is
http://www.physik.fu-berlin.de/~dietrich/opa.html

Optical parametric amplification (OPA) is used to produce tunable short pulses for pump and probe beams. The pump beam is the output of a regenerative amplifier system regenerative amplifier system with pulse energies of 0.5 mJ and durations of 150 fs at 800 nm. In a first step, a small part of the beam (Pump 1) generates white light continuum. A small part of the spectrum at the desired wavelength is then amplified in two stages of the OPA. The pulse duration of the signal is approx. 50 fs, the overall efficiency approx. 12%. (DM = dichroitic mirror)


[This message has been edited by 666 (edited September 18, 2000).]