We are doing some PDT works using devices from GenIUL, but in my point of view the use of IR are very interesting for some medical applications. I am not sure some commercial devicesexist in this wavelength. I think it's better to use commercial solutions, as we don't have time to spend developing experimental set-ups, especially if we are not engineers.
There are commercial (lab) lasers for two-photon applications mainly, in the range 700-900 nm
There are commercial cw diode laser (not CE certificate) at 760nm, 3W together with a new photosensitizer tetrahydroporphyrin-tetratosylat (THPTS) with a high absorption at 760 nm (about 100 0001/Mcm) from TetraPDT GmbH/ Germany ([email protected]). Some THPTS-PDT results stay here: http://www.ncbi.nlm.nih.gov/pubmed?term=Schastak%20S.
http://www.lumacare.com
I use the product from this company for my in vitro studies. With this system you can have any visible range wavelength and also NIR. There are different probes available for different wavelengths.
An interesting non commercial idea would be to convert a 96-well plate into a home made irradiation platform. The well plate would host an IR-diode array (3-pin diodes, one per well) and in that sense one could practically chose precisely the diode characteristics. Well this is an idea I never pursued so I cannot advise on any technical problems or feasibility.
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