Towards an in situ, full-power gauge of the focal-volume intensity of petawatt-class lasers

C. Z. He, A. Longman, J. A. Pérez-Hernández +7

About 50 years ago, Sarachick and Schappert [Phys. Rev. D. 1, 2738 (1970)] showed that relativistic Thomson scattering leads to wavelength shifts that are proportional to the laser…