Shaped-pulse optimization of coherent emission of high-harmonic soft X-rays
By R. Bartels, S. Backus, E. Zeek, L. Misoguti, G. Vdovin, I. P. Christov, Margaret M. Murnane, Henry C. Kapteyn. Nature, 2000
608 citations recorded by the source corpus.
When an intense laser pulse is focused into a gas, the light–atom interaction that occurs as atoms are ionized results in an extremely nonlinear optical process—the generation of high harmonics of the driving laser frequency. Harmonics that extend up to orders of about 300 have been reported, some corresponding to photon energies in excess of 500 eV. Because this technique is simple to implement and generates coherent, laser-like, soft X-ray beams, it is currently being developed for applications in science and technology; these include probing the dynamics in chemical and materials systems and imaging. Here we report that by carefully tailoring the shape of intense light pulses, we can control the interaction of light with an atom during ionization, improving the efficiency of X-ray generation by an order of magnitude. We demonstrate that it is possible to tune the spectral characteristics of the emitted radiation, and to steer the interaction between different orders of nonlinear processes.
Subfields: Atomic and Molecular Physics, and Optics, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/629104fcfd99c9b15598c0781ea1b3d26dc2472d
How researchers see this paper
The researchers whose trusted networks rank it highest, strongest advocate first. Every researcher gets a different order.
In Atomic and Molecular Physics, and Optics
In Nuclear and High Energy Physics
Citations in the corpus
- The attosecond nonlinear optics of bright coherent X-ray generation (2010, background): “By controlling the nonlinear chirp of the driving laser pulse, it became possible to sculpt the nonlinear response of the atom (that is, the electron wavefunction) to selectively emit a preferred frequency harmoni”
- Ultrafast optical pulse shaping: A tutorial review (2011, background): “, control of reaction products in laser photo-dissociation reactions) [81-84], selective enhancement of high harmonic (soft x-ray) radiation from atoms driven by strong laser fields [85], nonlinear pulse propagation in fibers [86], manipulation of energy flow in light harvesting molecules [87], and ”
- Above-threshold ionization: From classical features to quantum effects (2002, methodology): “This mechanism underlies the engineering of a HHG spectrum by tailoring the pulse shape in a feedbackcontrolled experiment (Bartels et al., 2000, 2001).”