Moin,
Just to spice up the discussion of LEDs and their photo-sensitivity, I would
like to point you at the bachelor thess of Aljunid[1] where he used LEDs
as replacement for photodiodes in a michelson interferometer style
pulsewidth autocorellation setup to measure femtosecond pulses.
Attila Kinali
[1] "Optical Autocorrelation using Non-Linearity in a Simple Photodiode",
by Syed Abdullah Aljunid, 2007
http://qolah.org/thesis/thesis-syed.pdf
--
It is upon moral qualities that a society is ultimately founded. All
the prosperity and technological sophistication in the world is of no
use without that foundation.
-- Miss Matheson, The Diamond Age, Neil Stephenson
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