A photon with a wavelength of 532 nm (green light) would have an energy of 
approximately 2.33 eV and the ionization potential of hydrogen is 13.6 eV  - 
but insofar as possible resonance between the two values, this is not that 
close of a fit since 6 * 2.33 = 13.98. Sixfold symmetry often turns up with 
hydrogen and hydrocarbons
Perhaps there is another connection


    Robin wrote:  (in re Michael Foster)
 
> Ok, here's another coincidence. For years I have been using a photopolymer 
> whose quantum yield is far over unity. This is a formulation I discovered by 
> a lot of experimenting. I use this in my work, so it remains and will remain 
> a trade secret. And the preferred wavelength is....wait for it....532 nm. 

I doubt if this is a related phenomenon, but who knows?
[snip]
Regards,

Robin van Spaandonk 

  

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