Characterization of focal field formed by a large numerical aperture paraboloidal mirror and generation of ultra-high intensity (1022 W/cm2)

被引：77

作者：

Bahk, SW

Rousseau, P

Planchon, TA

Chvykov, V

Kalintchenko, G

Maksimchuk, A

Mourou, G

Yanovsky, V

机构：

[1] Univ Rochester, Laser Energet Lab, Rochester, NY 14623 USA

[2] Univ Michigan, FOCUS Ctr, Ann Arbor, MI 48109 USA

[3] Univ Michigan, Ctr Ultrafast Opt Sci, Ann Arbor, MI 48109 USA

[4] Colorado Sch Mines, Dept Phys, Golden, CO 80401 USA

[5] Ecole Polytech, ENSTA, Lab Opt Appl, F-91761 Palaiseau, France

来源：

APPLIED PHYSICS B-LASERS AND OPTICS | 2005年 / 80卷 / 07期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1007/s00340-005-1803-8

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We describe a method to measure the aberrations of a high numerical aperture off-axis paraboloid and correct for the aberrations using adaptive optics. It is then shown that the characterized aberrations can be used to accurately calculate the electromagnetic field at the focus using the Stratton - Chu vector diffraction theory. Using this methodology, an intensity of 7 x 10(21) W/cm(2) was demonstrated by focusing a 45-TW laser beam with an f /0.6, 90 degrees off-axis paraboloid after correcting the aberrations of the paraboloid and the low-energy reference beam. The intensity can be further increased to 1 x 10(22) W/cm(2) by including in the correction algorithm the wavefront difference between the reference beam and the high-energy beam.

引用

页码：823 / 832

页数：10

共 19 条

[1] Generation of relativistic intensity pulses at a kilohertz repetition rate [J].