I am trying to calculate the reflection coefficient between VO2 and Vacuum For Evanescent waves in p polarization I find them greater than one,can anyone help me whether this result is reasonable or not?
In near-field the reflection and transmission coefficients are not bounded by one as in far field. As a consequence emissivity can be higher than one in near-field.
Dear Dr.Ben-Abdallah ,Many Thanks for answering my question.
If I may,I have one more question:
Is it related to Surface Phonon Polaritons ?
Thanks again
No, it is more general. It is due to evanescent photons and not only to surface waves which are resonant surface modes. In principle, without surface phonon polariton or surface plasmon the reflection coefficients can be larger than one in near-field.
- Badges
- Science topic
- Similar topics
- Engineering
- Thermal Engineering