In addition, the so-called Fermi resonance, first described almost a century ago in carbon dioxide, occurs at the atomic and molecular level when two vibrational modes caused by the absorption of ...

Phonon-polaritons are a unique type of electromagnetic wave that occurs when light interacts with vibrations in a material's crystal lattice structure. These phonon-polariton waves exhibit several ...

Because phonon relaxation is usually very fast ... the grade of diamond is not mentioned — using type IIa diamond would minimize absorption due to impurities in the lattice.