التفاصيل البيبلوغرافية
| العنوان: |
Dynamics of the femtosecond laser-triggered spark gap |
| المؤلفون: |
Rosenthal, E. W., Larkin, I., Goffin, A., Produit, Thomas, Schroeder, Malte Christian, Wolf, Jean-Pierre, Milchberg, H. M. |
| المصدر: |
ISSN: 1094-4087 ; Optics Express, vol. 28, no. 17 (2020) 24599. |
| سنة النشر: |
2020 |
| المجموعة: |
Université de Genève: Archive ouverte UNIGE |
| مصطلحات موضوعية: |
info:eu-repo/classification/ddc/500.2, Laser, Femtoseconde, Filament, Filamentation, Décharge |
| الوصف: |
We present space and time resolved measurements of the air hydrodynamics inducedby femtosecond laser pulse excitation of the air gap between two electrodes at high potential difference. We explore both plasma-based and plasma-free gap excitation. The former uses the plasma left in the wake of femtosecond filamentation, while the latter exploits air heating by multiple-pulse resonant excitation of quantum molecular wavepackets. We find that the cumulative electrode-driven air density depression channel plays the dominant role in the gap evolution leading to breakdown. Femtosecond laser heating serves mainly to initiate the depression channel; the presence of filament plasma only augments the early heating. |
| نوع الوثيقة: |
article in journal/newspaper |
| اللغة: |
English |
| Relation: |
info:eu-repo/grantAgreement/EC/H2020/737033/EU/Laser Lightning Rod/LLR; https://archive-ouverte.unige.ch/unige:139142; unige:139142 |
| الاتاحة: |
https://archive-ouverte.unige.ch/unige:139142 |
| Rights: |
info:eu-repo/semantics/openAccess |
| رقم الانضمام: |
edsbas.7B28DEDC |
| قاعدة البيانات: |
BASE |