Optical amplification in a CDW-phase of a quasi-two dimensional material
2021
We study theoretically the quenching of a charge-density-wave phase in a model system of a quasi-two dimensional material, which includes both electron-hole and electron-phonon interactions leading, respectively to excitonic and coherent-phonon contributions. We discuss how interaction processes affect anomalous expectation values and present a microscopic dynamical picture of the quenching of the phase. We use projection techniques to illustrate the time-dependent appearance of additional bands and anomalous expectation values. We propose an optical amplification effect with a high modulation frequency in the mid-infrared regime.
Keywords:
- Correction
- Source
- Cite
- Save
- Machine Reading By IdeaReader
82
References
0
Citations
NaN
KQI