التفاصيل البيبلوغرافية
| العنوان: |
Gamma-Ray Flash in the Interaction of a Tightly Focused Single-Cycle Ultraintense Laser Pulse with a Solid Target |
| المؤلفون: |
Hadjisolomou, P., Jeong, T. M., Valenta, P., Kolenaty, D., Versaci, R., Olšovcová, V., Ridgers, C. P., Bulanov, S. V. |
| سنة النشر: |
2021 |
| المجموعة: |
Physics (Other) |
| مصطلحات موضوعية: |
Physics - Plasma Physics |
| الوصف: |
We employ the $\lambda^3$ regime where a near-single-cycle laser pulse is tightly focused, thus providing the highest possible intensity for the minimal energy at a certain laser power. The quantum electrodynamics processes in the course of the interaction of the ultraintense laser with a solid target are studied via three-dimensional particle-in-cell simulations, revealing the generation of copious $\gamma$-photons and electron-positron pairs. The parametric study on the laser polarisation, target thickness and electron number density shows that the radially polarised laser provides the optimal regime for $\gamma$-photon generation. By varying the laser power in the range of 1 to 300 petawatt we find the scaling of the laser to $\gamma$-photon energy conversion efficiency. The laser-generated $\gamma$-photon interaction with a high-Z target is further studied by using Monte Carlo simulations revealing further electron-positron pair generation and radioactive nuclides creation. |
| نوع الوثيقة: |
Working Paper |
| DOI: |
10.1017/S0022377821001318 |
| URL الوصول: |
http://arxiv.org/abs/2109.11401 |
| رقم الانضمام: |
edsarx.2109.11401 |
| قاعدة البيانات: |
arXiv |