When an atom is excited after absorbing a photon, which mechanism allows for fluorescence?

💡 Explanation

Vibrational relaxation allows electrons to drop to slightly lower energy levels within the excited electronic state, because non-radiative transitions release energy as heat internally, therefore longer wavelengths are emitted in fluorescence, rather than the original absorbed wavelength.

• Which outcome occurs when a semiconductor's crystal lattice contains impurities causing localized Mid-Gap states during electron excitation?
• Which consequence results when a laser suffers catastrophic optical mirror damage?
• Which effect on observed star positions arises when light travels through a galaxy's dense spacetime?
• Which outcome occurs when excessively vibrating a gas sample excites rotational molecular modes?
• Which outcome occurs when the effective nuclear charge decreases?
• Which outcome is expedited within packed bed reactor when catalyst surface area greatly increases reaction equilibrium constant?