1. This two-way interaction arises because the energy gap in either direction is similar. 2. So the atoms only absorb the light whose wavelength exactly matches their energy gap . 3. The energy gap of state B is then of the order of 11400 cm. 4. Experiments verified that energy gaps increase with decreasing GNR width. 5. Exceptions to Kasha's rule arise when there are large energy gaps between excited states. 6. For silver, the energy gap widens and it becomes silvery. 7. Theoretical understanding of the properties of MgB 2 has almost been achieved with two energy gaps . 8. It has a steeper change of energy gap with mercury composition than HgCdTe, making compositional control harder. 9. The junction is thin, and the electric field is large enough that electrons jump the energy gap . 10. It displays an inverted band structure, and the optical energy gap , e g, is less than 0.
