[LeGrande]

But please do explain how the slit experiments demonstrate light as a particle. THanks!

First start by shooting particles (electrons or larger) at your target through a single slit. Photons technically will work but they are generally just considered electromagnetic radiation (waves) and make great interference patterns as your experiment demonstrated, but they make lousy particle patterns. You should get something that looks like what shooting a shotgun at a paper target looks like (lots of little holes). That is the particle verification.

Then insert the double slits in between your source and the target, then you should get an interference pattern, that is the verification of the wave nature. The idea is to shoot a single electron at a time. Concurrent electrons could invalidate the results.

If you have the theory that the particles are just tiny waves (I envision them as smoke rings) then just make the distance between the slits wider than the the wavelength you think that they are. It will still work with quite a large spacing.

Your experiment and post was great by the way: )

[mrjesse]

First start by shooting particles (electrons or larger) at your target through a single slit. Photons technically will work but they are generally just considered electromagnetic radiation (waves) and make great interference patterns as your experiment demonstrated, but they make lousy particle patterns. You should get something that looks like what shooting a shotgun at a paper target looks like (lots of little holes). That is the particle verification.

Then insert the double slits in between your source and the target, then you should get an interference pattern, that is the verification of the wave nature. The idea is to shoot a single electron at a time. Concurrent electrons could invalidate the results.

If you have the theory that the particles are just tiny waves (I envision them as smoke rings) then just make the distance between the slits wider than the the wavelength you think that they are. It will still work with quite a large spacing. Your experiment and post was great by the way: )

Thanks for the reply. But it didn't answer the one question it aimed at :-)

Here you have explained how to demonstrate that light is waves and how to demonstrate that particles are also waves, but my question was how does the double-slit experiment demonstrate light as a particle -- and the reason I asked is because you said "..if the double slit experiment doesn't convince you that light is both a wave and a particle.." -- but I'm still trying to understand how the double slit experiment might even begin to convince me that light is a particle.

I'm still very much interested in understanding. I can well see that the double slit experiment demonstrates the wave properties of light but I did not see any evidence of particle properties.

Thanks,

-Jesse