Resonant X-Ray Second Harmonic Generation

S. Yudovich; M. Fuchs; J. B. Hastings; Y. Inubushi; T. Katayama; D. A. Reis; M. Yabashi; S. Shwartz

doi:10.18957/rr.6.2.393

SACLA

Resonant X-Ray Second Harmonic Generation

S. Yudovich, M. Fuchs, J. B. Hastings, Y. Inubushi, T. Katayama, D. A. Reis, M. Yabashi, S. Shwartz

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Keywords: Nonlinear Optics, Nonlinear Spectroscopy, Ultrafast effects, X-ray Optics, 2014A8028, SACLA BL3

JOURNAL OPEN ACCESS

2018 Volume 6 Issue 2 Pages 393-398

DOI https://doi.org/10.18957/rr.6.2.393

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Abstract

The purpose at this beamtime was to observe coherent resonant second harmonic generation (SHG) in Gallium Arsenide (GaAs) around the Ga K-edge. The experiment followed a previous measurement of SHG far above resonances in diamond preformed at the SACLA x-ray free electron laser [1]. However, as opposed to the case of far above resonance SHG, the description of resonant SHG requires a full quantum model. We did not measure nonlinear second harmonic generation in GaAs during that beamtime. We could only estimate an upper limit for the magnitude of the effect.

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