Eigenpulses of Dispersive Time-Varying Media.
Phys Rev Lett
; 130(20): 203803, 2023 May 19.
Article
in En
| MEDLINE
| ID: mdl-37267534
ABSTRACT
We develop a compact theory that can be applied to a variety of time-varying dispersive materials. The continuous-wave reflection and transmission coefficients are replaced with equivalent operator expressions. In addition to comparing this approach to existing numerical and analytical techniques, we find that the eigenfunctions of these operators represent pulses that do not change their spectra after interaction with the time-varying, dispersive material. In addition, the poles of these operators represent the nontime harmonic bound states of the system.
Full text:
1
Database:
MEDLINE
Language:
En
Journal:
Phys Rev Lett
Year:
2023
Type:
Article
Affiliation country:
United kingdom