التفاصيل البيبلوغرافية
| العنوان: |
Pump-induced wavefront distortion in prototypical NIF/LMJ amplifiers-modeling and comparison with experiments |
| المؤلفون: |
Erlandson, A, Jancaitis, K, LeTouze, G, Marshall, C, Rotter, M, Seznec, S, Zapata, L |
| سنة النشر: |
2021 |
| المجموعة: |
SciTec Connect (Office of Scientific and Technical Information - OSTI, U.S. Department of Energy) |
| مصطلحات موضوعية: |
70 PLASMA PHYSICS AND FUSION, 42 ENGINEERING NOT INCLUDED IN OTHER CATEGORIES, Solid State Lasers, Pumping, Wave Propagation, Mathematical Models |
| الوصف: |
In large-aperture laser amplifiers such as those envisioned for the National Ignition Facility (NIF) and Laser Megajoules (LMJ) lasers, the geometry is such that the front and back faces of the laser slab are heated unevenly by the pump process. This uneven heating results in a mechanical deformation of the laser slab and consequent internal stresses. The deformation and stresses, along with a temperature-dependent refractive index variation, result in phase variations across the laser beam (so-called pump-induced wavefront distortions). These phase variations lead to beam steering which may affect frequency conversion as well as energy-on-target. We have developed a model which allows us to estimate the pump-induced wavefront distortion for a given amplifier configuration as well as the spatially-resolved depolarization. The model is compared with experiments taken in our amplifier development laboratory, AMPLAB |
| نوع الوثيقة: |
other/unknown material |
| وصف الملف: |
application/pdf |
| اللغة: |
unknown |
| العلاقة: |
http://www.osti.gov/servlets/purl/7492Test; https://www.osti.gov/biblio/7492Test |
| الإتاحة: |
http://www.osti.gov/servlets/purl/7492Test
https://www.osti.gov/biblio/7492Test |
| رقم الانضمام: |
edsbas.70965C4D |
| قاعدة البيانات: |
BASE |
