TY - JOUR AU - Singer, A. AU - Lorenz, U. AU - Sorgenfrei, F. AU - Gerasimova, N. AU - Gulden, J. AU - Yefanov, O. M. AU - Kurta, R. P. AU - Shabalin, A. AU - Dronyak, R. AU - Treusch, R. AU - Kocharyan, V. AU - Weckert, E. AU - Wurth, W. AU - Vartanyants, I. A. TI - Hanbury Brown–Twiss Interferometry at a Free-Electron Laser JO - Physical review letters VL - 111 IS - 3 SN - 1079-7114 CY - College Park, Md. PB - APS M1 - DESY-2014-01731 SP - 034802 PY - 2013 AB - We present measurements of second- and higher-order intensity correlation functions (so-calledHanbury Brown—Twiss experiment) performed at the free-electron laser (FEL) FLASH in the non-linearregime of its operation. We demonstrate the high transverse coherence properties of the FEL beam with adegree of transverse coherence of about 80 LB - PUB:(DE-HGF)16 UR - <Go to ISI:>//WOS:000322000300008 C6 - pmid:23909331 DO - DOI:10.1103/PhysRevLett.111.034802 UR - https://bib-pubdb1.desy.de/record/166962 ER -