Theoretical 0mrad laser questions

[Switch]

I guess this is what xanatos was talking about when he said about semantics. :
It's a beam ok?! It's just a very thin and weak beam...Don't ruin my possible 0mRad laser theory :'(

 

[pseudonomen137]

I guess this is what xanatos was talking about when he said about semantics. :
It's a beam ok?! It's just a very thin and weak beam...Don't ruin my possible 0mRad laser theory :'(

Please check out my earlier posts. Beam or not, its not 0mRad, sorry.

 

[Switch]

I have read all the posts, but but... :'(

..could be considered a 0 divergence very short pulse beam that could never be fired again as it would cause it's divergence to change...

It does exist you just have to believe :'(

 

[pencil_pusher]

hello, can anyone help me either build or buy a blue laser pointer? I am in the Army and do a lot of power point presentations and I want to be the first in my unit to have a blue laser pointer. Thanks.

 

[jayhawker08]

hello, can anyone help me either build or buy a blue laser pointer? I am in the Army and do a lot of power point presentations and I want to be the first in my unit to have a blue laser pointer. Thanks.

check out the experiments section and spend some time reading up. it will take a while, but you will find it is worth it in the end. good luck

 

[FrothyChimp]

I have actually thaught of that.That's why I said "one photon" and not "one photon at a time" ;D My one photon could be considered a 0 divergence very short pulse beam that could never be fired again as it would cause it's divergence to change...sorta...(?) :-/

The fact that an interference pattern is produced shooting a single photon at a time is indicative of a divergent wavefront of the wave nature of light. The energy of a single photon may be too weak to detect the interference pattern on the double slit experiment on the first shot but it must be divergent since it must diffract through both slits simultaneously to generate an interference pattern on a single photon shot. Each subsequent photon shot only reinforces the pattern until it becomes detectable but each photon used passes through both slits at precisely the same time.

So, no, a single photon cannot be considered to have a zero divergence.

 

[Switch]

Um :-/ yea....I didn't understand half the stuff you said.... :-/

 

[BlueFusion]

pencil_pusher, I suggest you read up and DIY, but if you want a prebuilt one, I can help you out. PM me.