TY - CHAP AU - Schmüser, Peter AU - Dohlus, Martin AU - Rossbach, Jörg AU - Behrens, Christopher TI - Self-Amplified Spontaneous Emission and FEL Seeding VL - 258 SN - 0081-3869 CY - Cham PB - Springer International Publishing M1 - PUBDB-2016-02396 SN - 978-3-319-04080-6 T2 - Springer tracts in modern physics SP - 107 - 131 PY - 2014 N1 - Post referee full text prohibited. AB - For wavelengths in the extreme ultraviolet and X-ray regime the start-up of the FEL process by seed radiation is hampered by the lack of lasers with the desired wavelength. Seeding by a high harmonic of an optical or infrared laser is a possibility which has been realized in recent years, see Sect. 7.4, where also other seeding schemes are described. The process of Self-Amplified Spontaneous Emission (SASE) permits the start-up of lasing at an arbitrary wavelength, without the need of external radiation. KW - Freie-Elektronen-Laser (gnd) LB - PUB:(DE-HGF)7 UR - <Go to ISI:>//WOS:00 DO - DOI:10.1007/978-3-319-04081-3_7 UR - https://bib-pubdb1.desy.de/record/300776 ER -