Images > Nature, Flora, Fauna & Landscapes

Gourd - UV stimulated fluorescence into the visible

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bobfriedman:
So I was doing some painting with light and figured I would try some UV stimulated resonance fluorescence into the visible. I used a Nichia UV light with a U-340 filter to stimulate fluorescence in the second image.

Nikon D850, AF-S VR Nikkor 200/2G
25s f/13.0 at 200.0mm iso31


Nikon D850, AF-S VR Nikkor 200/2G
61s f/13.0 at 200.0mm iso31

Akira:
Interesting find, Bob!

Apparently, the one in the middle fluoresces most vividly.  I wonder if you cast a rather narrow UV beam onto it.  It looks dramatic anyway!

pluton:
Lovely false color work, Bob.

bobfriedman:

--- Quote from: pluton on November 25, 2020, 05:23:44 ---Lovely false color work, Bob.

--- End quote ---

actually not false color.. true color taken in the visible by inducing the guards to fluoresce by stimulating them with ultraviolet light.

pluton:

--- Quote from: bobfriedman on November 25, 2020, 09:47:31 ---actually not false color.. true color taken in the visible by inducing the guards to fluoresce by stimulating them with ultraviolet light.

--- End quote ---
Touché. "false color' implies the color being falsified in the photo process. In any case, thanks for accurately recording the far out colors that the UV light revealed!

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