Is there any resin without photoluminiscence?

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Pavel Yurievich Bokov

I think, you may use excitation in IR spectral range. For example at 1,06 mkm. In this case many organic compositions haven't any luminescence.

Rostislav Váňa

Thank you Pavel for your answer!

Since in this range different optics in spectrometer should be used, I would prefer to have non-photoluminiscent resin in optical range. The best would be not to have PL with 532 nm laser.

Rostislav, also in the best case the Raman peaks from resin should be in another spectral range than your organics.