you should take a bit of time to convince yourself that it w
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Hi Yuval,

you should take a bit of time to convince yourself that it will really be 
cheaper, over the lifetime of your instrument. Ar/Kr lasers are notorious for 
having relatively short service lifetimes before the tube needs replacing (most 
of the cost of a new laser). I think the Ar/Kr on our confocal in needed to be 
replaced 2 or 3 times during the course of my doctorate. Solid state lasers are 
getting pretty cheap these days, and are going to be much more reliable. The 
only situation where I'd contemplate a gas laser (and particularly an Ar/Kr) now 
was if I needed a very long coherence length for interferometry.

cheers,
David


----- Original Message ----
From: Yuval Ebenstein <[log in to unmask]>
To: [log in to unmask]
Sent: Wed, 25 May, 2011 12:28:42 PM
Subject: which multiline gas laser should I buy

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Hello,
I'm looking for a cheaper alternative for a high power solid-state laser 
combiner.
I'm thinking of buying an Ar/Kr (which gives almost every excitation line I can 
think of) and I can't decide between the Innova 70c-spectrum from Coherent and 
the Stabilite 2018-RM from Spectra-physics. They are quite similar on paper but 
the spectra one is cheaper. I heard much about the robustness of the Coherent 
model.
Anyone has experience with one of these? Anything special I should look for?
Many thanks
Yuval

-- --------------------------------------
Yuval Ebenstein
Department of Chemistry and Biochemistry, UCLA
Young Hall-2002, 607 Charles E. Young Drive East
Los Angeles, CA 90095-1569
Ph: (310) 794-6685; Fax: (310) 267-4672