Pulses, coherency, and spectra of the NovoFEL radiation

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Abstract

Free-electron lasers have specific time form of its radiation (usually continuous train of very shot pulses) and specific instabilities of the radiation. The fast instabilities change intra-pulse coherency of the radiation and produce large-scale side-band frequency modes. The slow instabilities change coherency between pulses and have an influence on fine structure of the spectra, which consist of many close longitudinal partly-synchronized modes. Spectral measurements of terahertz NovoFEL radiation by methods of Fourier spectroscopy, ultra-fast single-pulse spectroscopy, and new high-resolution spectroscopies based on ultra-long resonance waveguide vacuum Fabry-Perot interferometer and mixing of the NovoFEL radiation with ultra-monochromatic radiation of a gas laser are presented in the report.

Original languageEnglish
Title of host publication2017 42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017
PublisherIEEE Computer Society
ISBN (Electronic)9781509060481
DOIs
Publication statusPublished - 12 Oct 2017
Event42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017 - Cancun, Quintana Roo, Mexico
Duration: 27 Aug 20171 Sep 2017

Conference

Conference42nd International Conference on Infrared, Millimeter, and Terahertz Waves, IRMMW-THz 2017
CountryMexico
CityCancun, Quintana Roo
Period27.08.201701.09.2017

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