Quasi-supercontinuum source in the extreme ultraviolet using multiple frequency combs from high-harmonic generation
- Friedrich Schiller Univ. Jena (Germany). Inst. of Optics and Quantum Electronics; Helmholtz Inst. Jena (Germany)
- Friedrich Schiller Univ. Jena (Germany). Inst. of Optics and Quantum Electronics
- Friedrich Schiller Univ. Jena (Germany). Inst. of Optics and Quantum Electronics; SLAC National Accelerator Lab., Menlo Park, CA (United States)
A quasi-supercontinuum source in the extreme ultraviolet (XUV) is demonstrated using a table-top femtosecond laser and a tunable optical parametric amplifier (OPA) as a driver for high-harmonic generation (HHG). The harmonic radiation, which is usually a comb of odd multiples of the fundamental frequency, is generated by near-infrared (NIR) laser pulses from the OPA. A quasi-continuous XUV spectrum in the range of 30 to 100 eV is realized by averaging over multiple harmonic comb spectra with slightly different fundamental frequencies and thus different spectral spacing between the individual harmonics. The driving laser wavelength is swept automatically during an averaging time period. With a total photon flux of 4×109 photons/s in the range of 30 eV to 100 eV and 1×107 photons/s in the range of 100 eV to 200 eV, the resulting quasi-supercontinuum XUV source is suited for applications such as XUV coherence tomography (XCT) or near-edge absorption fine structure spectroscopy (NEXAFS).
- Research Organization:
- Friedrich Schiller Univ. Jena (Germany); Helmholtz Inst. Jena (Germany); SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE; German Research Foundation (DFG); Thuringer Aufbaubank (Germany); Helmholtz Inst. Jena (Germany); German Federal Ministry of Education and Research (BMBF); Volkswagen Foundation (Germany)
- Grant/Contract Number:
- PA-730/5; 2015FGR0094; 501100001663
- OSTI ID:
- 1361124
- Journal Information:
- Optics Express, Vol. 25, Issue 6; ISSN 1094-4087
- Publisher:
- Optical Society of America (OSA)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
A high resolution extreme ultraviolet spectrometer system optimized for harmonic spectroscopy and XUV beam analysis
|
journal | February 2019 |
Laboratory setup for extreme ultraviolet coherence tomography driven by a high-harmonic source
|
journal | November 2019 |
A high resolution extreme ultraviolet spectrometer system optimized for harmonic spectroscopy and XUV beam analysis
|
text | January 2019 |
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