Chiral terahertz lasing with Berry curvature dipoles
Fuente:
arXiv
Salvato in:
| Autori principali: | , , , , |
|---|---|
| Natura: | Preprint |
| Pubblicazione: |
2023
|
| Soggetti: | |
| Accesso online: | |
| Tags: |
Aggiungi Tag
Nessun Tag, puoi essere il primo ad aggiungerne!!
|
| _version_ | 1866916684050202624 |
|---|---|
| author | Hakimi, Amin Rouhi, Kasra Rappoport, Tatiana G. Silveirinha, Mario G. Capolino, Filippo |
| author_facet | Hakimi, Amin Rouhi, Kasra Rappoport, Tatiana G. Silveirinha, Mario G. Capolino, Filippo |
| contents | Materials with Berry curvature dipoles (BDs) support a non-Hermitian electro-optic (EO) effect that is investigated here for lasing at terahertz (THz) frequencies. Such a system is here conceived as a stack of low-symmetry 2D materials. We show that a cavity made of such a material supports a nonreciprocal growing mode with elliptical polarization that generates an unstable resonance leading to self-sustained oscillations. Notably, we demonstrate that the chiral nature of the gain derived from the Berry dipole allows for the manipulation of the laser light's handedness by a simple reversal of the electric field bias. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2312_15142 |
| institution | arXiv |
| publishDate | 2023 |
| record_format | arxiv |
| spellingShingle | Chiral terahertz lasing with Berry curvature dipoles Hakimi, Amin Rouhi, Kasra Rappoport, Tatiana G. Silveirinha, Mario G. Capolino, Filippo Optics Materials with Berry curvature dipoles (BDs) support a non-Hermitian electro-optic (EO) effect that is investigated here for lasing at terahertz (THz) frequencies. Such a system is here conceived as a stack of low-symmetry 2D materials. We show that a cavity made of such a material supports a nonreciprocal growing mode with elliptical polarization that generates an unstable resonance leading to self-sustained oscillations. Notably, we demonstrate that the chiral nature of the gain derived from the Berry dipole allows for the manipulation of the laser light's handedness by a simple reversal of the electric field bias. |
| title | Chiral terahertz lasing with Berry curvature dipoles |
| topic | Optics |
| url | https://arxiv.org/abs/2312.15142 |