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[ATM] Interferometer Fringe Contrast From Coated Mirrors

Subject: [ATM] Interferometer Fringe Contrast From Coated Mirrors
From: mimas at charter.net (Donald "Don" Ware)
Date: Sat Jan 24 00:57:01 2004
References: <000501c3e1b7$1f082c80$455fbd42@oemcomputer><066101c3e1ba$66fa9250$6502a8c0@NewToy><000601c3e1be$2a531670$6401a8c0@big>

----- Original Message ----- 
From: "Don Clement" <clement.focuser@verizon.net>
To: "ATM" <atm@atmlist.net>
Sent: Friday, January 23, 2004 9:35 AM
Subject: Re: [ATM] Interferometer Fringe Contrast From Coated Mirrors
> Pellicle beam splitters are not hard to make. I just made some rather
large
> ones 3' x 5'. Actually the poor mans double pane windows :-{)

Don, the problem with ordinary mylar film is that it's not coated and
therefore transmission will be 90% or so.  This isn't enough attenuation.
I'm using 67% and that could be greater.

Don Ware

References:
- [ATM] Interferometer Fringe Contrast From Coated Mirrors
  - From: mimas at charter.net (Donald "Don" Ware)
- [ATM] Interferometer Fringe Contrast From Coated Mirrors
  - From: jlerch1 at tampabay.rr.com (James Lerch)
- [ATM] Interferometer Fringe Contrast From Coated Mirrors
  - From: clement.focuser at verizon.net (Don Clement)

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