ArticleProceedings of the National Academy of Sciences of the United States of America2020
Population inversion X-ray laser oscillator.
Article in Proceedings of the National Academy of Sciences of the United States of America, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 12 papers.
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12 citing papers in PubMed.
- Simultaneous lasing of Ni Kα and Cu Kα lasers from an alloy foil irradiated with an intense X-ray free-electron laser pulse.Journal of synchrotron radiation · 2026Article
- Lasing of a cavity-based X-ray source.Nature · 2026Article
- Article
- Stimulated X-ray emission spectroscopy.Photosynthesis research · 2024Review
- Seeded stimulated X-ray emission at 5.9 keV.Optica · 2023Article
- Experimental setup for high-resolution characterization of crystal optics for coherent X-ray beam applications.Journal of applied crystallography · 2023Article
- Towards performing high-resolution inelastic X-ray scattering measurements at hard X-ray free-electron lasers coupled with energetic laser drivers.Journal of synchrotron radiation · 2022Article
- Generation of intense phase-stable femtosecond hard X-ray pulse pairs.Proceedings of the National Academy of Sciences of the United States of America · 2022Article
- Tunable x-ray free electron laser multi-pulses with nanosecond separation.Scientific reports · 2022Article
- Features and futures of X-ray free-electron lasers.Innovation (Cambridge (Mass.)) · 2021Review
- Bridging Structural Inhomogeneity to Functionality: Pair Distribution Function Methods for Functional Materials Development.Advanced science (Weinheim, Baden-Wurttemberg, Germany) · 2021Review
- Observation of electron-induced characteristic x-ray and bremsstrahlung radiation from a waveguide cavity.Science advances · 2021Article
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8 authors.
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Abstract
Oscillators are at the heart of optical lasers, providing stable, transform-limited pulses. Until now, laser oscillators have been available only in the infrared to visible and near-ultraviolet (UV) spectral region. In this paper, we present a study of an oscillator operating in the 5- to 12-keV photon-energy range. We show that, using the [Formula: see text] line of transition metal compounds as the gain medium, an X-ray free-electron laser as a periodic pump, and a Bragg crystal optical cavity, it is possible to build X-ray oscillators producing intense, fully coherent, transform-limited pulses. As an example, we consider the case of a copper nitrate gain medium generating ∼ 5 × [Formula: see text] photons per pulse with 37-fs pulse length and 48-meV spectral resolution at 8-keV photon energy. Our theoretical study and simulation of this system show that, because of the very large gain per pass, the oscillator saturates and reaches full coherence in four to six optical-cavity transits. We discuss the feasibility and design of the X-ray optical cavity and other parts of the oscillator needed for its realization, opening the way to extend X-ray-based research beyond current capabilities.
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