Spectral encoding of x-ray/optical relative delay

• DOI: 10.1364/oe.19.021855
• Publication Date: 2011-10-20T22:28:35Z
• Authors: Mina R. Bionta; H. T. Lemke; J. P. Cryan; J. M. Glownia; C. Bostedt; M. Cammarata; J.-C. Castagna; Y. Ding; D. M. Fritz; A. R. Fry; J. Krzywinski; M. Messerschmidt; S. Schorb; M. L. Swiggers; R. N. Coffee
• Keywords: 02 engineering and technology; 0210 nano-technology

We present a new technique for measuring the relative delay between soft x-ray FEL pulse and an optical laser that indicates sub 25 fs RMS measurement error. An ultra-short photo-ionizes semiconductor (Si(3)N(4)) membrane changes transmission. continuum with temporally chirped bandwidth spanning 630 nm-710 nm interacts such timing of can be determined from onset spectral modulation transmitted pulse. This experiment demonstrates nearly in situ single-shot arrival time to