Externet Posted May 8, 2020 Share Posted May 8, 2020 Would passing only ultraviolet light trough a prism onto a 'fluorescent' painted target show if it is of the A, B, C type by the projected angle/deflection? Link to comment Share on other sites More sharing options...
Strange Posted May 8, 2020 Share Posted May 8, 2020 Yes. (But you would need to find a material for the prism that is transparent to those frequencies; I don't think normal glass is.) Link to comment Share on other sites More sharing options...
StringJunky Posted May 8, 2020 Share Posted May 8, 2020 I think you'll only register uva. Link to comment Share on other sites More sharing options...
ScienceNostalgia101 Posted July 20, 2020 Share Posted July 20, 2020 On 5/8/2020 at 3:14 PM, Strange said: Yes. (But you would need to find a material for the prism that is transparent to those frequencies; I don't think normal glass is.) Would a diffraction grating work? I've long been interested in splitting sunlight into its UV and visible rays separately. Link to comment Share on other sites More sharing options...
swansont Posted July 20, 2020 Share Posted July 20, 2020 You have to ensure the target would respond differently to the different frequencies 27 minutes ago, ScienceNostalgia101 said: Would a diffraction grating work? I've long been interested in splitting sunlight into its UV and visible rays separately. Yes, as long as the material passes UV Link to comment Share on other sites More sharing options...
studiot Posted July 20, 2020 Share Posted July 20, 2020 UV spectrophotometers used to use fused quartz prisms. Link to comment Share on other sites More sharing options...
John Cuthber Posted July 20, 2020 Share Posted July 20, 2020 They used to use crystalline quartz prisms- which makes life interesting because quartz is chiral. They had to make the prism out of two pieces o quartz, one left handed and the other right. I think reflective diffraction gratings are common now. 7 hours ago, ScienceNostalgia101 said: Would a diffraction grating work? I've long been interested in splitting sunlight into its UV and visible rays separately. Yes, but you might need some sort of "order sorting filter" Link to comment Share on other sites More sharing options...
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