Re: Excitation and Emission Spectrum


raconte@xxxxxxxxxxx wrote:
> Attila the Bum wrote:
> > Blue shifts come from two-photon absorptions,
> > hence their "weak" (low probability) nature?
>
> Right, that's more or less what I meant. :) Remember, lab monkey, not
> Ph.D physicist.

OK. Monkey, not physicist
(bananas, not bosons, or grants, etc :-).

> > Got an example/published report?
> >
>
> No, but there are also phosphor screens manufactured (for example by
> Kodak) as replacements for x-ray film. If the phospors are exposed to
> x-rays or gamma rays, they become "sensitized". Red laser light causes
> a blue emission of the sensitized areas. The screen is reusable, just
> "erase" with blue light.

Grrrr. More two-photon effects,
or "stored" energy from the x-/gamma
illumination (it's erased with
higher energy light)?


Atty (...?)

.