The discussion centers on the optical properties of stained glass, specifically why blue stained glass transmits blue light while absorbing red light. It is established that blue glass, often made with Cobalt Oxide, allows blue light to pass through because the energy of blue photons is insufficient to excite electrons to higher energy levels. Conversely, red photons possess enough energy to excite electrons in the glass, leading to absorption. The complexities of light absorption and transmission in stained glass are further explored, including the role of intermediate energy levels in photon emission.
PREREQUISITESStudents of physics, materials scientists, artists working with stained glass, and anyone interested in the optical properties of materials.
Of course it does, just using a different color filter. Blue photons don't have enough energy to take the electrons in blue glass to the next level, so they are not absorbed. Red photons do have enough energy to do that and so are absorbed.Daniel Petka said:Btw the vid doesn't explain why blue photons pass through blue stained glass and red photons don't.
phinds said:Of course it does, just using a different color filter. Blue photons don't have enough energy to take the electrons in blue glass to the next level, so they are not absorbed. Red photons do have enough energy to do that and so are absorbed.
Damn. You're right of course. I clearly wasn't paying attention to what I was saying.Daniel Petka said:What?? I thought blue photons have MORE energy than red photons.
Daniel Petka said:Glass is transparent because the light doesn't have enough energy to get the electrons to the next energy level. But how does blue stained glass work? Does the blue light have too much energy to excite the electron in comparison to red and green that get absorbed? Why are the low energy wavelengths being absorbed? Is there another principle?