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Does anyone have a rough idea of what the "sweep speed" would have to be in order for this to work? I suppose that would depend on the photon emission rate at the source.
I think this might be an overcomplicated setup, though.
If this actually works, I was thinking it might be an interesting way of demonstrating that even a powerful light source is composed of quantized light. But there are probably much better ways of doing that already.
Admittedly, they would probably be too faint to actually see, but perhaps a fancy detector array or even photographic emulsion would work.
Bugger er, well, maybe interference is the wrong term.Would it be possible to emit photons at a constant rate so that, during each revolution, the photons hit the screen at the same spot? The time for one revolution would have to be some multiple of the emission period of course.
Quote from: Geezer on 27/04/2011 23:26:42Bugger er, well, maybe interference is the wrong term.Would it be possible to emit photons at a constant rate so that, during each revolution, the photons hit the screen at the same spot? The time for one revolution would have to be some multiple of the emission period of course.Well, you can kind of think of the intensity on the screen as a guide to where you'll find photons when the intensity gets turned down very low. Unless all your intensity is bunched at a point this won't happen. If all your intensity is bunched at a point, you won't be gaining anything by rotating the light source, since you're intentionally not spreading the intensity beyond that point. If you did want to put all your intensity at a spot while rotating the light source, you could use a shutter or a pulsed laser.
But I don't want to turn down the intensity  That's the whole point of the experiment!What I want to do is demonstrate that a beam of light is quantized without altering its intensity by any means other than projecting it like a lighthouse beam. I was thinking if I could perhaps synchronize the rate of rotation with the emission rate, we would build up a series of visible dots on the screen, but I have a nasty feeling the photon emission rate is too indeterminate to make that work.
Photons are not emitted naturally in a definite sequence (like one every0.0000001 seconds), but casually.
Yeah. To control the emission rate, you're going to have to control the intensity, which is what you don't want to do.
That's what I was afraid of. Sounds as if they are like busses. You wait at the bus stop for half an hour, then five of them show up all at the same time.