Visio Guy

Visio Guy Website & General Stuff => User-submitted Stuff => Topic started by: JuneTheSecond on January 24, 2018, 01:20:23 AM

Title: Simulation of 3 Polarizing Plates
Post by: JuneTheSecond on January 24, 2018, 01:20:23 AM
I am now trying to play simulation of polarization plate on Visio drawing.
I confirmed myself some impressive phenomina through the real polarization plates,
and confirmed them through the simulation more accurate.
Please, enjoy with attatched Visio drawing.
Title: Re: Simulation of 3 Polarizing Plates
Post by: Paul Herber on January 24, 2018, 12:12:25 PM
Junichi is yet again shining light into the darkest recesses of Visio!  :)
Title: Re: Simulation of 3 Polarizing Plates
Post by: wapperdude on January 24, 2018, 04:08:41 PM
Illuminating!  ... and surprising.

Initial expectation was plate 2 / plate 3 at 90deg, no transmission.  Check.
Next expectation was plate 1 / plate3 at 90deg, no transmission.  But not true.  Is this correct???  Guess so.  Fascinating.

Wapperdude
Title: Re: Simulation of 3 Polarizing Plates
Post by: JuneTheSecond on January 25, 2018, 01:28:14 AM
QuoteNext expectation was plate 1 / plate3 at 90deg, no transmission.  But not true.  Is this correct??? 
Do you mean "plate 1 / plate3 at 90deg" , and plate 2 at 0 degree?
I am not quite sure, but I think true in my experiment using real plates.
Title: Re: Simulation of 3 Polarizing Plates
Post by: wapperdude on January 25, 2018, 02:09:07 AM
Sorry, I didn't explain that very well, but yes. 

For example, plate 1 @ -45 deg, plate 2 @ 0 degrees, and plate 3 @+45 deg.  Result makes sense upon further reflection (no pun intended).

So, this is also educational!   :)

Wapperdude
Title: Re: Simulation of 3 Polarizing Plates
Post by: JuneTheSecond on January 25, 2018, 10:06:38 AM
Thank you very much.
I've modified the above Visio drawing somewhere to show more detail.
But I am affraid I have not yet modified my error.
Title: Re: Simulation of 3 Polarizing Plates
Post by: JuneTheSecond on January 26, 2018, 07:00:39 AM
And added a short vide at
https://youtu.be/J7Hi3K8m6T0 .

Please enjoy.
Title: Re: Simulation of 3 Polarizing Plates
Post by: JuneTheSecond on January 26, 2018, 11:34:44 PM
And I found a good refference video at
https://youtu.be/r1sZY826Qys .
I also happened to calculate like in that way in this video.
Title: Re: Simulation of 3 Polarizing Plates
Post by: wapperdude on January 27, 2018, 03:02:59 AM
Videos were interesting and informative.

Nice.  We'll have to call you Professor!

Wapperdude
Title: Re: Simulation of 3 Polarizing Plates
Post by: JuneTheSecond on February 14, 2018, 11:54:24 PM
I've moddified a little.
When a second sheet is at 90 degrees to the first sheet, strong light leaks a little.
I've added trancemittance factor at 90 degrees to that of at 0 degree.