Lab Demonstration : Diffractions & Interference

[Music] hello everyone my name is Michelle and I'm t4 intradural photonics course so welcome to the lab session of interval photonic hosts so today we are going to do the experiment of diffraction and interference of light so we'll see both the phenomena what we have seen in the class same thing we'll see here so as we

already know that that fraction is just light bends at the sharp edges and interference is like two light waves interfering depending upon their face so same phenomena we are about to observe here so guys this is optical breadboard it is used to hold the components there are small holes if you can see I'm not

sure so this it has small holes to hold the components so generally the component is so there will be a component holder here so you just place the holder so this is a post holder so this is a post so so basically I have few diffraction cells here so this is the diffraction cell it has one small

slit in between okay it goes and fits into this and then you can tighten it now you can put it on the mount so uh this is our slit so similarly I have a screen to observe the interference happening so this is screen so it is on the post and you can fix the screen

anywhere on the breadboard and then most of one thing that we need here is the source of light and as the source of light I have a laser light so this is a laser driver and this is a laser light okay once I switch it on I can get a laser source from here and then this is

a laser mount to mount this laser so it is on a holder so just put the kind of it this is kinematic laser Moyne so now this is optical computer optical now we can switch on the laser light