Influence of the number of cones on speckle patterns in the Laser MegaJoule configuration

被引：0
|
作者：
Le Cain, A. [1 ]
Riazuelo, G. [2 ]
Sajer, J. M. [1 ]
机构：
[1] CEA, CESTA, DAM, BP 2, F-33114 Le Barp, France
[2] CEA, DIF, DAM, F-91297 Le Barp, France
来源：
IFSA 2011 - SEVENTH INTERNATIONAL CONFERENCE ON INERTIAL FUSION SCIENCES AND APPLICATIONS | 2013年 / 59卷
关键词：
HOT-SPOTS; FUSION; PLASMA;
D O I：
10.1051/epjconf/20135905002
中图分类号：
TL [原子能技术]; O571 [原子核物理学];
学科分类号：
0827 ; 082701 ;
摘要：
This paper investigates statistical properties of hot spots when speckle patterns are generated by the superimposition of multiple laser beams in a 2 cone and a 3 cone Laser MegaJoule configuration in the zone where all the beams overlap. Three different cases of polarizations are investigated: P polarization, S polarization and the case of Double Polarization Smoothing (DPS). It is found that the sizes of the speckles depend on the choice of the polarization and that DPS seems to be the best option in both configurations. It is shown that the longitudinal radius of the hot spots in a 2 cone configuration is bigger than in a 3 cone configuration.
引用
收藏
页数：5
相关论文
共 50 条
  • [31] Demodulation of DBR Fiber Laser Sensors With Speckle Patterns
    Zhao, Fang
    Lin, Weihao
    Guo, Penglai
    Hu, Jie
    Liu, Shuaiqi
    Yu, Feihong
    Zuo, Guomeng
    Wang, Guoqing
    Liu, Huanhuan
    Chen, Jinna
    Li, Yi
    Shum, Perry Ping
    Shao, Liyang
    IEEE SENSORS JOURNAL, 2023, 23 (21) : 26022 - 26030
  • [32] SOME EXTREME VALUE STATISTICS OF LASER SPECKLE PATTERNS
    BARAKAT, R
    OPTICS COMMUNICATIONS, 1974, 10 (02) : 107 - 110
  • [33] Evaluation of Cutaneous Microcirculation Patterns by Laser Speckle Imaging
    Bento, L.
    Tavora, L.
    Assuncao, P.
    Faria, S.
    Fonseca-Pinto, R.
    2018 41ST INTERNATIONAL CONVENTION ON INFORMATION AND COMMUNICATION TECHNOLOGY, ELECTRONICS AND MICROELECTRONICS (MIPRO), 2018, : 290 - 293
  • [34] Laser Vibrometer Interferometry for Speckle Patterns Tracking Systems
    Schwarz, Ariel
    Shemer, Amir
    Ozana, Nisan
    Garcia, Javier
    Zalevsky, Zeev
    2017 CONFERENCE ON LASERS AND ELECTRO-OPTICS (CLEO), 2017,
  • [35] Optical configuration of pigmented lesion detection by frequency analysis of skin speckle patterns
    Bishitz, Yael
    Ozana, Nisan
    Schwarz, Ariel
    Beiderman, Yevgeny
    Garcia, Javier
    Zalevsky, Zeev
    BIOMEDICAL OPTICS EXPRESS, 2016, 7 (03): : 1003 - 1014
  • [36] Simulation of Laser Speckle Patterns Generated by Random Rough Surfaces
    Schwenger, Frederic
    Braesicke, Katrin
    INFRARED IMAGING SYSTEMS: DESIGN, ANALYSIS, MODELING, AND TESTING XXXI, 2020, 11406
  • [37] Monitoring of bread cooling by statistical analysis of laser speckle patterns
    Lyubenova, Tanya
    Stoykova, Elena
    Nacheva, Elena
    Ivanov, Branimir
    Panchev, Ivan
    Sainov, Ventseslav
    17TH INTERNATIONAL SCHOOL ON QUANTUM ELECTRONICS: LASER PHYSICS AND APPLICATIONS, 2013, 8770
  • [38] Laser-induced speckle scatter patterns in Bacillus colonies
    Kim, Huisung
    Singh, Atul K.
    Bhunia, Arun K.
    Bae, Euiwon
    FRONTIERS IN MICROBIOLOGY, 2014, 5
  • [39] Intensity thresholding of the laser speckle patterns and effects on the power spectrum
    Zhou, Xin
    Cheng, Xinlu
    Wu, Guodong
    Zhongguo Jiguang/Chinese Journal of Lasers, 1998, 25 (06): : 539 - 542
  • [40] SECOND-ORDER STATISTICS OF LASER-SPECKLE PATTERNS
    MILLER, MG
    SCHNEIDERMAN, AM
    KELLEN, PF
    JOURNAL OF THE OPTICAL SOCIETY OF AMERICA, 1975, 65 (07) : 779 - 785
12345