Single-grating monochromator for extreme-ultraviolet ultrashort pulses
| Autor: | C. A. Froud, I C Edmund Turcu, Paolo Villoresi, Fabio Frassetto, W. A. Bryan, Cephise Cacho, Luca Poletto, Emma Springate |
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| Rok vydání: | 2011 |
| Předmět: |
Physics
Photons Ultraviolet Rays business.industry Physics::Optics Pulse duration Equipment Design Spectroscopy Electron Energy-Loss Grating Atomic and Molecular Physics and Optics law.invention Optics law Extreme ultraviolet Optoelectronics High harmonic generation Central Laser Facility business Ultrashort pulse Diffraction grating Monochromator |
| Popis: | Extreme-ultraviolet high-order-harmonic pulses with 1.6·10(7) photons/pulse at 32.5 eV have been separated from multiple harmonic orders by a time-preserving monochromator using a single grating in the off-plane mount. This grating geometry gives minimum temporal broadening and high efficiency. The pulse duration of the monochromatized harmonic pulses has been measured to be in the range 20 to 30 fs when the harmonic process is driven by an intense 30 fs near-infrared pulse. The harmonic photon energy is tunable between 12 and 120 eV. The instrument is used in the monochromatized branch of the Artemis beamline at the Central Laser Facility (UK) for applications in ultrafast electron spectroscopy. |
| Databáze: | OpenAIRE |
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