C P Barty, C L Gordon and B E Lemoft, Optics Lett. 19, 1442 (1994)
J Zhou, C P Huang, M Murnane and H Kapteyn, Optics Lett. 20, 64 (1995)
Y Kitagaw, T Matsumoto, T Minamihata, K Sawai, K Mima, K Nishiara, H Azechi, K A Tanaka, H Takabe and S Nakai, Phys. Rev. Lett. 68, 48 (1992)
C E Clayton, M J Everaett, A Lal, D Gordan, K A Marsh and C Joshi, Phys. Plasmas 1, 1753 (1994)
F Amiranoff, D Bernard, B Cros, F Jacquet, G Mathieussen, P Mine, P Mora, J Morillo, F Moulin, A E Specka and C Stenz, Phys. Rev. Lett. 74, 220 (1995)
E Esarey, P Sprangle, A Ting and J Krall, IEEE Trans. Plasma Sci. PS-24, 252 (1996)
J J Macklin, J D Kmetec and C L Gordon, Phys. Rev. Lett. 70, 766 (1993)
A L’Huillier and P Balcou, Phys. Rev. Lett. 70, 774 (1993)
J Zhou, J Peatross, M M Murnane, H C Kapteyn and I P Christov, Phys. Rev. A50, 3438 (1994)
H M Milchberg, C G Durfee III and T J Macllarath, Phys. Rev. Lett. 76, 752 (1996)
N H Burnett and G D Enright, IEEE J. Quantum Electron 26, 1797 (1990)
P Amendt, D C Eder and S C Wilks, Phys. Rev. Lett. 66, 2589 (1991)
D C Eder, P Amendt, L B DaSalva, R A London, B J MacGowan, D L Mathews, B M Penetrqante, M D Roser, S C Wilks, T D Donnelly, R W Falcone and G L Strobel, Phys. Plasmas 1, 1744 (1994)
B E Lemoff, G Y Yin, C L Gordon III, C P J Barty and S E Harris, Phys. Rev. Lett. 74, 1574 (1995)
M Tabak, J Hammer, M E Glinsky, W L Kruer, S C Wilks, J Woodworth, E M Campbell, M D Perry and R J Mason, Phys. Plasmas 1, 1626 (1994)
C Deutsch, H Furukawa, K Mima, M Murakami and K Nishiara, Phys. Rev. Lett. 77, 2483 (1996)
C G Durfee III and H M Milchberg, Phys. Rev. Lett. 71, 2409 (1993)
H M Milchberg, T R Clark, C G Durfee III, T M Antosen and P Mora, Phys. Plasmas 3, 2149 (1996)
T R Clark and H M Milchberg, Phys. Rev. Lett. 78, 2773 (1997)
K Krushelmick, A Ting, C I Moore, H R Burris, E Esarey, P Sprangle and M Baine, Phys. Rev. Lett. 78, 4047 (1997)
W P Leemans, C E Clayton, W B Mori, K A Marsh, A Dyson and C Joshi, Phys. Rev. Lett. 68, 321 (1992)
W P Leemans, C E Clayton, W B Mori, K A Marsh, P K Kaw, A Dyson, C Joshi and J M Wallace, Phys. Rev. A46, 1091 (1992)
A Zigler, Y Ehrlich, C Cohen, J Krall and P Sprangle, J. Opt. Soc. Am. B13, 68 (1996)
C S Liu and V K Tripathi, Phys. Plasmas 1, 3100 (1994)
D Subbarao, R Uma and H Singh, Phys. Plasmas 5, 3440 (1998)
D Anderson, Phys. Rev. A27, 3135 (1983)
D Anderson and M Bonnedal, Phys. Fluids 22, 105 (1979)
M Karlsson, D Anderson and M Desaix, Optics Lett. 17, 22 (1992)
T Singh, N S Saini and S S Kaul, Pramana — J. Physics 55, 423 (2000)
G Fibich, Phys. Rev. Lett. 76, 4356 (1996)
L Berge, Phys. Rep. 303, 259 (1998)
