COLLISIONAL EXCITATION X-RAY LASER EXPERIMENTS IN PLASMAS PRODUCED BY 0.53-MUM AND 0.35-MUM LASER-LIGHT

被引:15
作者
KEANE, CJ [1 ]
MACGOWAN, BJ
MATTHEWS, DL
LONDON, RA
MAXON, S
ROSEN, MD
BOURGADE, JL
DECOSTER, A
JACQUEMOT, S
LOUISJACQUET, M
NACCACHE, D
机构
[1] UNIV CALIF LAWRENCE LIVERMORE NATL LAB, LIVERMORE, CA 94550 USA
[2] CTR ETUD LIMEIL VALENTON, F-94190 VILLENEUVE ST GEORGES, FRANCE
来源
APPLIED PHYSICS B-PHOTOPHYSICS AND LASER CHEMISTRY | 1990年 / 50卷 / 04期
关键词
42.55.Hq; 52.50.Jm;
D O I
10.1007/BF00325057
中图分类号
O59 [应用物理学];
学科分类号
摘要
Recent Ne- and Ni-like X-ray laser experiments carried out at the Centre d'Etudes de Limeil-Valenton (CEL-V) are reviewed. A variety of experiments in Ne-like X-ray lasers were performed; here we discuss measurements of soft X-ray amplification in Ge (Z=32) and Sr (Z=38) plasmas. In Ge plasmas produced by 0.53-μm laser light at an irradiance of 6.0×1013 W/cm2, gains between 2.2-2.5 cm-1 on the 232.2 and 236.2 Å J=2-1 lines and a gain of 1.0 cm-1 on the 196.1 Å J=0-1 line were measured. In addition, gains of 4.4 cm-1 and 4.0 cm-1 have been demonstrated on the J=2-1 transitions at 164.1 and 166.5 Å in Nelike Sr at laser intensities of 1.3×1014 W/cm2. The effects of pumping the Ne-like Se X-ray laser with 0.35-μm laser light have also been investigated; the Se lasing spectra is similar to that obtained with 0.53-μm light. Experiments have also been carried out to optimize the gain of the 50.3 Å Ni-like Yb (Z=70) J=0-1 line. For Yb, no significant increase in gain over that previously reported was seen, but the time history of the Ni-like Yb X-ray laser was measured for the first time. Finally, attempts to extrapolate the Ni-like results to shorter wavelength were made using Ta (Z=73), W (Z=74), and Re (Z=75). No definitive observation of the Ni-like J=0-1 lasing lines was made in these experiments. © 1990 Springer-Verlag.
引用
收藏
页码:257 / 264
页数:8
相关论文
共 41 条
[21]  
MACGOWAN BJ, 1986, SOC PHOTOOPT INSTRUM, V688, P36
[22]  
MACGOWAN BJ, 1988, J OPT SOC AM B, V5, P1958
[23]   DEMONSTRATION OF A SOFT-X-RAY AMPLIFIER [J].
MATTHEWS, DL ;
HAGELSTEIN, PL ;
ROSEN, MD ;
ECKART, MJ ;
CEGLIO, NM ;
HAZI, AU ;
MEDECKI, H ;
MACGOWAN, BJ ;
TREBES, JE ;
WHITTEN, BL ;
CAMPBELL, EM ;
HATCHER, CW ;
HAWRYLUK, AM ;
KAUFFMAN, RL ;
PLEASANCE, LD ;
RAMBACH, G ;
SCOFIELD, JH ;
STONE, G ;
WEAVER, TA .
PHYSICAL REVIEW LETTERS, 1985, 54 (02) :110-113
[24]  
MATTHEWS DL, 1986, J OPT SOC AM B, V4, P575
[25]   CORRECTION [J].
MAXON, S .
PHYSICAL REVIEW LETTERS, 1989, 63 (17) :1896-1896
[26]   CALCULATIONS FOR NI-LIKE SOFT-X-RAY LASERS - OPTIMIZATION FOR W (43.1 A) [J].
MAXON, S ;
DALHED, S ;
HAGELSTEIN, PL ;
LONDON, RA ;
MACGOWAN, BJ ;
ROSEN, MD ;
CHARATIS, G ;
BUSCH, G .
PHYSICAL REVIEW LETTERS, 1989, 63 (03) :236-239
[27]   CALCULATION AND DESIGN OF A NI-LIKE EU SOFT-X-RAY LASER [J].
MAXON, S ;
HAGELSTEIN, P ;
MACGOWAN, B ;
LONDON, R ;
ROSEN, M ;
SCOFIELD, J ;
DALHED, S ;
CHEN, M .
PHYSICAL REVIEW A, 1988, 37 (06) :2227-2230
[28]   A GAS PUFF SOFT-X-RAY LASER TARGET DESIGN [J].
MAXON, S ;
HAGELSTEIN, P ;
REED, K ;
SCOFIELD, J .
JOURNAL OF APPLIED PHYSICS, 1985, 57 (03) :971-972
[29]   ESTIMATED GAINS FOR A NI-LIKE EXPLODING FOIL TARGET [J].
MAXON, S ;
HAGELSTEIN, P ;
SCOFIELD, J ;
LEE, Y .
JOURNAL OF APPLIED PHYSICS, 1986, 59 (01) :293-295
[30]   DEMONSTRATION OF QUASIRESONANT X-RAY PHOTOEXCITATION IN A LASER-CREATED PLASMA [J].
MONIER, P ;
CHENAISPOPOVICS, C ;
GEINDRE, JP ;
GAUTHIER, JC .
PHYSICAL REVIEW A, 1988, 38 (05) :2508-2515