Long lasting plasma density structures utilizing tailored density profiles
Fuente:
arXiv
Enregistré dans:
| Auteurs principaux: | , , , , , , |
|---|---|
| Format: | Preprint |
| Publié: |
2026
|
| Sujets: | |
| Accès en ligne: | |
| Tags: |
Ajouter un tag
Pas de tags, Soyez le premier à ajouter un tag!
|
| _version_ | 1866910053929320448 |
|---|---|
| author | Luo, Mufei Riconda, Caterina Grassi, Anna Wang, Ning Wurtele, Jonathan Pusztai, Istvan Fülöp, Tünde |
| author_facet | Luo, Mufei Riconda, Caterina Grassi, Anna Wang, Ning Wurtele, Jonathan Pusztai, Istvan Fülöp, Tünde |
| contents | Using fully kinetic Particle In Cell simulations, we investigate the stability and performance of autoresonant plasma beat wave excitation in plasmas with tailored density profiles. We show that a prescribed spatial variation of the background density sustains continuous phase locking between the driving laser beat and the excited plasma mode, thereby enabling precise control of the plasma wave packet shape and group velocity and providing an alternative to frequency chirping of the drive lasers. The density gradient scale is found to govern the nonlinear autoresonant growth, and the attainable saturation amplitude can exceed the classical Rosenbluth Liu prediction and, for appropriate laser intensities, approach the nonrelativistic wave breaking limit. We show that a four laser configuration in a steep parabolic density profile can generate a specially confined two phase quasiperiodic plasma lattice. The generation of such structures may lead to novel applications in plasma photonics. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2603_14570 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Long lasting plasma density structures utilizing tailored density profiles Luo, Mufei Riconda, Caterina Grassi, Anna Wang, Ning Wurtele, Jonathan Pusztai, Istvan Fülöp, Tünde Plasma Physics Using fully kinetic Particle In Cell simulations, we investigate the stability and performance of autoresonant plasma beat wave excitation in plasmas with tailored density profiles. We show that a prescribed spatial variation of the background density sustains continuous phase locking between the driving laser beat and the excited plasma mode, thereby enabling precise control of the plasma wave packet shape and group velocity and providing an alternative to frequency chirping of the drive lasers. The density gradient scale is found to govern the nonlinear autoresonant growth, and the attainable saturation amplitude can exceed the classical Rosenbluth Liu prediction and, for appropriate laser intensities, approach the nonrelativistic wave breaking limit. We show that a four laser configuration in a steep parabolic density profile can generate a specially confined two phase quasiperiodic plasma lattice. The generation of such structures may lead to novel applications in plasma photonics. |
| title | Long lasting plasma density structures utilizing tailored density profiles |
| topic | Plasma Physics |
| url | https://arxiv.org/abs/2603.14570 |