I would like to do circular polarizer-photoluminescence measurements, but I need of a standard sample with a well-known polarization degree. Does anyone know if such a standard sample exists?
Ari Gafni and his group at the Univ. of Michigan has done a considerable amount of work on this in the past (1990s). You might want to find papers published by his group on CPL. Also papers by Izchak Steinberg and Ari Gafni from the 1970s.
Gianfranco,
In a review on CPL:
Frederick Richardson and James Riehl
Circularly Polarized Luminescence Spectroscopy
Chemical Reviews, Vol. 77, No. 6, pp 773-791
Mentions work done by Shindo and Miura. They used optically active sodium 1,3,5-triphenyl-pyrazolinyl sulfate in methanol at room temperature. The g(lum) factor was found to be constant (~ 4 x 10^-4) across the 390-560 nm emission band.
Unfortunately I lost the last page of my copy of the review that contains the direct reference to Shindo's and Miura's work.
Hopefully that is helpful.
Cheers,
John
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