This study shows that the photoelectron energy spectrum generated by an intense laser pulse in the presence of a continuous X-ray has interesting and useful statistical properties. The total photoionization production is linearly proportional to the time duration of the laser pulse and the square of the beam size. The spectral double energy-integration is an intrinsic value of the laser-assisted X-ray photoionization, which linearly depends on the laser intensity and which quantitatively reflects the strengths of the laser-field modulation and the quantum interference between photoelectrons. The spectral energy width also linearly depends on the laser intensity. These linear relationships suggest new methods for the in-situ measurement of laser intensity and pulse duration with high precision.
(Beam characteristics: profile, intensity, and power; spatial pattern formation)
Fund:
Project supported by the National Natural Science Foundation of China (Grant No. 11175010).
Corresponding Authors:
Ge Yu-Cheng
E-mail: gyc@pku.edu.cn
Cite this article:
Ge Yu-Cheng (葛愉成), Ge Xiang-Jie (葛湘洁), He Hai-Ping (何海萍) Statistical properties of the photoelectron energy spectrum generated by an intense laser pulse and a continuous X-ray 2014 Chin. Phys. B 23 114203
[1]
Ge Y C and He H P 2014 Chin. Phys. B 23 074207
[2]
Bula C, McDonald K T, Prebys E J, Bamber C, Boege S, Kotseroglou T, Melissinos A C, Meyerhofer D D, Ragg W, Burke D L, Field R C, Horton-Smith G, Odian A C, Spencer J E, Walz D, Berridge S C, Bugg W M, Shmakov K and Weidemann A W 1996 Phys. Rev. Lett. 76 3116
[3]
Chang Z, Rundquist A, Wang H, Murnane M M and Kapteyn H C 1997 Phys. Rev. Lett. 79 2967
[4]
Perry M D and Mourou G 1994 Science 264 917
[5]
Mashiko H, Suda A and Midorikawa K 2004 Opt. Lett. 29 1927
[6]
Lewenstein P, Balcou P, Ivanov M Y, L'Huillier A and Corkum P B 1994 Phys. Rev. A 49 2117
[7]
Ge Y C 2008 Chin. Phys. B 17 4492
[8]
Wiehle R, Witzel B, Helm H and Cormier E 2003 Phys. Rev. A 67 063405
[9]
Agostini P, Fabre F, Mainfray G, Petite G and Rahman N K 1979 Phys. Rev. Lett. 42 1127
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