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Naslov:Coherent soft X-ray pulses from an echo-enabled harmonic generation free-electron laser
Avtorji:ID Rebernik Ribič, Primož, Elettra Sincrotrone Trieste, Univerza v Novi Gorici (Avtor)
ID De Ninno, Giovanni, Elettra Sincrotrone Trieste, Univerza v Novi Gorici (Avtor), et al.
Datoteke: Gradivo nima datotek, ki so prostodostopne za javnost. Gradivo je morda fizično dosegljivo v knjižnici fakultete, zalogo lahko preverite v COBISS-u. Povezava se odpre v novem oknu
Jezik:Angleški jezik
Vrsta gradiva:Delo ni kategorizirano
Tipologija:1.01 - Izvirni znanstveni članek
Organizacija:UNG - Univerza v Novi Gorici
Opis:X-ray free-electron lasers (FELs), which amplify light emitted by a relativistic electron beam, are extending nonlinear optical techniques to shorter wavelengths, adding element specificity by exciting and probing electronic transitions from core levels. These techniques would benefit tremendously from having a stable FEL source, generating spectrally pure and wavelength-tunable pulses. We show that such requirements can be met by operating the FEL in the so-called echo-enabled harmonic generation (EEHG) configuration. Here, two external conventional lasers are used to precisely tailor the longitudinal phase space of the electron beam before emission of X-rays. We demonstrate high-gain EEHG lasing producing stable, intense, nearly fully coherent pulses at wavelengths as short as 5.9 nm (~211 eV) at the FERMI FEL user facility. Low sensitivity to electron-beam imperfections and observation of stable, narrow-band, coherent emission down to 2.6 nm (~474 eV) make the technique a prime candidate for generating laser-like pulses in the X-ray spectral region, opening the door to multidimensional coherent spectroscopies at short wavelengths.
Ključne besede:free electron laser, coherence, x-rays
Leto izida:2019
Št. strani:8
Številčenje:0
PID:20.500.12556/RUNG-4793 Novo okno
COBISS.SI-ID:5380859 Novo okno
DOI:10.1038/s41566-019-0427-1 Novo okno
NUK URN:URN:SI:UNG:REP:83ZLUN1C
Datum objave v RUNG:07.05.2019
Število ogledov:5199
Število prenosov:0
Metapodatki:XML DC-XML DC-RDF
:
REBERNIK RIBIČ, Primož in DE NINNO, Giovanni, 2019, Coherent soft X-ray pulses from an echo-enabled harmonic generation free-electron laser. Nature Photonics [na spletu]. 2019. Vol. 0. [Dostopano 7 april 2025]. DOI 10.1038/s41566-019-0427-1. Pridobljeno s: https://repozitorij.ung.si/IzpisGradiva.php?lang=slv&id=4510
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Gradivo je del revije

Naslov:Nature Photonics
Založnik:Nature Research (part of Springer Nature)
Leto izida:2019
ISSN:1749-4885

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