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The^Bob's photostream
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Cut Zoisite (Tanzanite) gem, fluorescence & transmission
The gem, 5mm long, is photographed through a light yellow filter that removes most - but not all - of...
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Uploaded on Mar 5, 2012
Linseed oil transmission and fluorescence
This shows the visible and nir (400-2500nm) transmission spectrum of a 1cm depth of linseed oil (top...
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Uploaded on Feb 26, 2012
Chlorophyll fluorescence in olive oil
The photograph in the lower part of the image shows a 633nm laser beam entering from the right a 1 x 5...
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Uploaded on Feb 26, 2012
Fluorescence spectrum and dispersed images of a green fluorite crystal
The pair of images in the lower panel show a small (8mm wide) pale blue-green fluorite crystal being...
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Uploaded on Feb 18, 2012
Fluorescence of cut blue-green fluorite
A cut blue-green fluorite from Afganistan - 14mm long, 4.82 carats - illuminated with a 20mW 404nm...
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Uploaded on Feb 17, 2012
Three old, dry seaweeds
Transmission (lower) and fluorescence (upper - shifted by 100 flux units) under 404nm laser excitation...
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Uploaded on Feb 10, 2012
Phycoerythrin fluorescence
An attempt to isolate the phycobilin fluorescence spectrum by subtracting a green (fig) leaf...
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Uploaded on Feb 10, 2012
A February morning at Kochelsee
Olive oil fluorescence — 3 lasers
The blue, green and red line spectra above show the fluorescence of extra-virgin olive oil excited by...
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Uploaded on Feb 3, 2012
Olive oil spectra
The spectrum plot above shows a wide wavelength coverage of the transmission (green lines) of a 1cm...
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Uploaded on Jan 31, 2012
On green apatite
Dark green non-transparent apatite containing small (mm-sized) transparent hexagonal crystals that...
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Uploaded on Jan 24, 2012
Junge Frau im Profil, ca. 1900
A glass of olive oil
... in a dark room. The only time it is likely to be drunk.
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Uploaded on Jan 22, 2012
Happy-hour cocktail fluorescence spectrum
I'm not sure that this particular cocktail would catch on. The red fluorescer is chlorophyll in olive...
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Uploaded on Jan 21, 2012
Happy-hour_cocktail_2
The finished product. Still undrunk and with the ice melted.
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Uploaded on Jan 21, 2012
Spectroscopy
Solargraphy
The colour blue
Natural Phenomena
Gemstone colours
Microscopy
Macro
Best of my HDR
Sky
Solar eclipse 99
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