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Tom,

You may want to take a look at a 1030 nm excitation wavelength. There is
now a new generation of compact and easy-to-use femtosecond wavelength
at this wavelength. Have a look at our web site
www.amplitude-systemes.com, contact me directly, or see the following
post: http://groups.yahoo.com/group/mplsm-users/message/662 for more
details.

Eric

Eric Mottay
President - CEO
Amplitude Systemes
Parc Scientifique Unitec 2
351 Cours de la Liberation
33400 Talence
France
Tel. 33 5 4000 3447
Fax 33 5 4000 3444
Email [log in to unmask]
Internet www.amplitude-systemes.com



Tom wrote:

>Search the CONFOCAL archive at
>http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
>
>hi,all!
>At the moment I'm designing a variant on a two-photon fluorescence
>microscope and as an optical engineer, have a question on a practical
>aspect of the operation.
>
>I'll be using QDots605 ( excitation peak 605nm) as my fluorophore ,I want
>to  konw which excitation  wavelength would be good for a two-photon
>excitation . I konw someone have used 900nm wavelength as two-photon
>excitation,but is there any other wavelength <900nm suitable for two-photo
>excitation?
>
>Thanks in advance for your help,
>
>
>
>