preferably the electro magnetic kind.
My current vote is 193 nm, and maybe 404 nm
30.4 nm (Helium II line from the Sun). It provides the bulk of energy in Earth’s thermosphere.
I was also thinking of adding ~13nm, from EUVV, because i use many semi devices which require that λ to exist (not that particular number, but anything in that range) - and since it is only a range, i can’t call it ‘a’ wavelength
that is a really solid choice
0.729 Å, 17 keV.
Why? Nostalgia from running measurements at this wavelength with the bros.
Second best? 1 Å,12.398 keV
what experiments?
A specific flavour of X-ray diffraction: Dark-field imaging
I happen to have done it too.
745 nm 🤌
any reasons, seems to be on the edge of red and N-IR, but don’t know any transition nearby, or any specific corresponding color (other than "red"s)
It’s in the red-edge band, and it’s used to estimate earth vegetation from satellites
that is great, thanks