E-viri
PDF
Recenzirano
Odprti dostop
-
Bionta, Mina R; Lemke, H T; Cryan, J P; Glownia, J M; Bostedt, C; Cammarata, M; Castagna, J-C; Ding, Y; Fritz, D M; Fry, A R; Krzywinski, J; Messerschmidt, M; Schorb, S; Swiggers, M L; Coffee, R N
Optics express, 10/2011, Letnik: 19, Številka: 22Journal Article
We present a new technique for measuring the relative delay between a soft x-ray FEL pulse and an optical laser that indicates a sub 25 fs RMS measurement error. An ultra-short x-ray pulse photo-ionizes a semiconductor (Si(3)N(4)) membrane and changes the optical transmission. An optical continuum pulse with a temporally chirped bandwidth spanning 630 nm-710 nm interacts with the membrane such that the timing of the x-ray pulse can be determined from the onset of the spectral modulation of the transmitted optical pulse. This experiment demonstrates a nearly in situ single-shot measurement of the x-ray pulse arrival time relative to the ultra-short optical pulse.
