Unfortunately I have tried using the light source well over 5 feet away from the slits and see nothing (note I am using a very high quality digital camera to integrate over ~30-90s exposures). Even with the light this far away, the camera clearly records two single slits. I've used monochromatic...
Hi, I'm trying to perform a double slit diffraction experiment without using a laser, but instead using a super-bright, white LED. This LED has been placed inside a sealed box with a small pinhole opening (~1/32 inch diameter). This however introduces the problem that the light is incoherent...