It is not necessary to detect an individual photon.
The photon double slot experiment as I remember it released photons at a time interval large enough make two simultaneous photons extremely unlikely.
The development of the film indicated the distribution.
The force on the film can be calculated and does not need to be measured.

It would be interesting to see this experiment repeated with a particle which has little or no field ( gravity, charge etc.)
Does the wave property occur only in a particle with a field or is it due to another particle property?

• Please clarify - harvey1 - October 26, 2003 - 03:42 UTC
  • Is this better? - duordi - October 26, 2003 - 21:37 UTC
    • Double slit experiments with single photons - harvey1 - October 26, 2003 - 23:27 UTC
      • The experiment has been done - yanniru - October 27, 2003 - 12:23 UTC
        • I found examples - harvey1 - October 27, 2003 - 15:27 UTC
          • Can you give a reference? - duordi - October 28, 2003 - 04:34 UTC
            • You know - harvey1 - October 28, 2003 - 15:17 UTC