Cyclic plasma shearing interferometry for temporal characterization of a laser-produced plasma

被引:2
作者
Cobble, JA [1 ]
Johnson, RP [1 ]
Kurnit, NA [1 ]
Montgomery, DS [1 ]
Fernández, JC [1 ]
机构
[1] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
关键词
D O I
10.1063/1.1512339
中图分类号
TH7 [仪器、仪表];
学科分类号
0804 ; 080401 ; 081102 ;
摘要
A cyclic shearing interferometer has been employed to characterize a laser-produced plasma with 180 ps resolution. Counterpropagation maintains an equal path length for the probe and reference beams, and the shear is provided solely by the plasma, which appears within the circuit after the reference beam has passed the laser focal spot. The background is virtually fringe free because of the overlapping of the reference and probe beams so that analysis is simplified. The plasma, which is formed by a line focus, is seen to expand in a cylindrical manner away from the line focus with an exponential density profile. In addition, the interferometer shows evidence of a bow shock when an interaction beam is introduced into the plasma parallel to the direction of the line focus. (C) 2002 American Institute of Physics.
引用
收藏
页码:3813 / 3817
页数:5
相关论文
共 16 条
[1]  
ABRAMOWITZ M, 1964, NBS APPL MATH SER, V55, P376
[2]  
ALPHER RA, 1965, PLASMA DIAGNOSTIC TE, P477
[3]   4-FRAME HOLOGRAPHIC PROBING SYSTEM FOR PLASMA-DENSITY MEASUREMENT [J].
BUSCH, GE ;
SHEPARD, CL ;
SIEBERT, LD ;
TARVIN, JA .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1985, 56 (05) :879-884
[4]   The spatial location of laser-driven, forward-propagating waves in a National-Ignition-Facility-relevant plasma [J].
Cobble, JA ;
Fernández, JC ;
Kurnit, NA ;
Montgomery, DS ;
Johnson, RP ;
Renard-Le Galloudec, N ;
Lopez, MR .
PHYSICS OF PLASMAS, 2000, 7 (01) :323-332
[5]   RANDOM-PHASE PLATES FOR BEAM SMOOTHING ON THE NOVA LASER [J].
DIXIT, SN ;
THOMAS, IM ;
WOODS, BW ;
MORGAN, AJ ;
HENESIAN, MA ;
WEGNER, PJ ;
POWELL, HT .
APPLIED OPTICS, 1993, 32 (14) :2543-2554
[6]   Two-dimensional plasma flow past a laser beam [J].
Ghosal, S ;
Rose, HA .
PHYSICS OF PLASMAS, 1997, 4 (07) :2376-2396
[7]   RANDOM PHASING OF HIGH-POWER LASERS FOR UNIFORM TARGET ACCELERATION AND PLASMA-INSTABILITY SUPPRESSION [J].
KATO, Y ;
MIMA, K ;
MIYANAGA, N ;
ARINAGA, S ;
KITAGAWA, Y ;
NAKATSUKA, M ;
YAMANAKA, C .
PHYSICAL REVIEW LETTERS, 1984, 53 (11) :1057-1060
[8]  
KRUER WL, 1988, PHYSICS LASER PLASMA, P167
[9]   A new interferometer to measure preheat in laser targets [J].
Kyrala, GA ;
Johnson, RP ;
Hurry, T .
REVIEW OF SCIENTIFIC INSTRUMENTS, 1999, 70 (01) :682-686
[10]  
MALACARA D, 1978, OPTICAL SHOP TESTING, P156