Public Lab Research note


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Microscopic View of Public Lab's Acetate film slits

by dhaffnersr | August 19, 2016 16:48 | 433 views | 3 comments | #13370 | 433 views | 3 comments | #13370 19 Aug 16:48

Read more: unstable.publiclab.org/n/13370


I have wanted to do this for awhile now, and finally got around to it and I am glad I did, I took my microscope today and examined the 0.09mm slit (one of 4 that comes with the Plab kit you can order, for various slit widths,) as I had suspected there are many imperfections riddled throughout the slit entrance area.

09mm_slit_at_100x_magnification_aug19_both_pictues.png

I'm not sure if these imperfections really pose any real attenuation of signal exiting the slit or distortion effects, but I am going to try an open air slit design of the same size and see if there is any difference.

Any comments or questions are welcomed.


3 Comments

This is pretty interesting, thanks Dave! I'm curious to see the results, but how will you measure the relative attenuation?

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@warren, hey jeff, I'm working on an experiment that will clearly show if there is any difference between the two.

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@warren, hey jeff here is the experiment I ran that does show there is a difference between the acetate film strips Plab sells and the open-air slit I constructed the other day, here is the link to the research note,

http://publiclab.org/notes/dhaffnersr/08-20-2016/eem-2d-spectrums-showing-evidence-of-attenuation-from-imperfections-in-acetate-film-strips

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