Diffraction Limit Sample for Microscope

Hi all,

So, I'm trying to "hit" the diffraction limit (i.e. view Rayleigh criterion, or Abbe or Sparrow criterion) with my light microscope . Bought the scope off amazon..it's a typical AmScope that has 2000x magnification limit.... But the trouble is I can't find a good sample of two spots.

I used my OLED screen on my phone...but the pixels are 85 microns apart...which my microscope can easily resolve.

Then I turned to MEMS Microsphones http://memsjournal.typepad.com/.a/6a...315f8a1970b-pi

which i have a few samples of...the perforation holes are 10.5 microns in diatemer, separated by approx 5.56 microns. My scope can easily resolve them.


Preparing two small holes 100-600nm apart from one another would be likely too difficult for me to create.

any ideas on how to view Diffraction Limit, or rayleighs criterion, etc?

I was thinking maybe slides created for Two Slits Interference experiments.


Thank you,