That is pretty cool and awfully nice of these clams. It could indeed be inspiration to interesting tech. We already have amazing technology for light modulation

That is pretty cool and awfully nice of these clams. It could indeed be inspiration to interesting tech. We already have amazing technology for light modulation if you take a look at a DPL beamer. This tiny chips have millions of tiny mirrors controlled by gas. At least TI does, I don't know if others have made progress here in the meantime. An incredible technology everyone takes for granted. Changing the wavelength isn't trivial, this sounds very interesting. I don't know any techniques aside from passing it to another medium.