Re: ferri sesquichlorati
----- Original Message ----- From: "Halvor Bjørngård" <halvor@ydl.net> To: <alt-photo-process-l@usask.ca> Sent: Monday, October 23, 2006 3:56 PM Subject: Re: ferri sesquichlorati > ...off to the library :-) > Sounds right FEPVA or fe doped pva is what I remember. > Think I saw this in one "processes in photoreactive polymers" but > explanation was a bit short and not too clear. > But yes, the most impressive part of ferric chloride is its low sensitivity :-) > (don't think 488 nm would be the optimum for ferric really, have done some > spectral scanning of AFC and FO and don't think there was much absorbency at > least, in that area, but I am not too familiar with the needs of holography, > I assume they have a reason for using 488. Let me guess, the laser/light > source emits at 488 nm ?) Exactly. Among the many lines available from an Ar laser 488 and 514 nm are strongest. Martin
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