This is news to me but as soon as I read it I *thought* understood why it works. Gravity, atoms...
Some of the things I came across when I was trying to understand it myself. Saw your post and figured I'd share. I thought some of these could be contributing factors to the outcomes/mutations. But I'm still stumped by it being green light, but I suppose in seed the material isn't actually green inside, and thus wouldn't reflect. I'm just a noob, so go easy on me. lol
Laser-induced fluorescence is a spectroscopic method in which an atom or molecule is excited to a higher energy level by the absorption of laser light followed by spontaneous emission of light.
Fluorescence occurs when an orbital electron of a molecule, atom, or nanostructure, relaxes to its ground state by emitting a photon from an excited singlet state.
In general, emitted fluorescent light has a longer wavelength and lower energy than the absorbed light.This phenomenon, known as Stokes shift, is due to energy loss between the time a photon is absorbed and when it is emitted. The causes and magnitude of Stokes shift can be complex and are dependent on the fluorophore and its environment. However, there are some common causes. It is frequently due to non-radiative decay to the lowest vibrational energy level of the excited state. Another factor is that the emission of fluorescence frequently leaves a fluorophore in a higher vibrational level of the ground state.
When an atom in a chlorophyll molecule, absorbs light and jumps to a higher energy level, the electron gets far enough from the atom that it can be stolen away by nearby molecules carrying the electron down an electron transport chain. The chlorophyll that loses the electron is situated in a particular location called the
photosynthetic reaction center. It is in the center of a sort of inverted umbrella of molecules in the thylakoid membrane. The tip of that umbrella is very near the first molecule in the photosynthetic electron transport chain. Once the electron is stolen, the chlorophyll gets a new electron from nearby chlorophylls and other accessory pigments.
Absorption of electromagnetic radiation is the way in which the energy of a photon is taken up by matter, typically the electrons of an atom. Thus, the electromagnetic energy is transformed into internal energy of the absorber, for example thermal energy. The reduction in intensity of a light wavepropagating through a medium by absorption of a part of its photons is often called attenuation.