I successfully created the fringe pattern at home with a simple laser light and a black plastic sheet with two thin cut as double-slits. I then used two mobile phone cameras at two sides in hope that the wave function of light will be collapsed. But nothing happened i.e. the fringe remained there. Is there any easy way to test both wave and particle behavior of light using some homemade detector ? What exactly is a detector used by scientists in such experiments which makes the wave collapsed?