X-Ray Second Harmonic Generation | Zendy

S. Shwartz | Zendy; M. Fuchs | Zendy; J. B. Hastings | Zendy; Yuichi Inubushi | Zendy; Tetsuya Ishikawa | Zendy; Tetsuo Katayama | Zendy; David A. Reis | Zendy; Takahiro Sato | Zendy; Kensuke Tono | Zendy; Makina Yabashi | Zendy; Shimon Yudovich | Zendy; S. E. Harris | Zendy

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X-Ray Second Harmonic Generation

Author(s) -

S. Shwartz,

M. Fuchs,

J. B. Hastings,

Yuichi Inubushi,

Tetsuya Ishikawa,

Tetsuo Katayama,

David A. Reis,

Takahiro Sato,

Kensuke Tono,

Makina Yabashi,

Shimon Yudovich,

S. E. Harris

Publication year - 2014

Publication title -

physical review letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 3.688

H-Index - 673

eISSN - 1079-7114

pISSN - 0031-9007

DOI - 10.1103/physrevlett.112.163901

Subject(s) - high harmonic generation , wavelength , physics , optics , quadratic growth , second harmonic generation , harmonic , laser , radiation , nonlinear optics , phase matching , atomic physics , electron , nonlinear system , phase (matter) , harmonics , diamond , materials science , quantum mechanics , voltage , mathematical analysis , mathematics , composite material

We report clear experimental evidence for second harmonic generation at hard x-ray wavelengths. Using a 1.7 Å pumping beam generated by a free electron laser, we observe second harmonic generation in diamond. The generated second harmonic is of order 10 times the background radiation, scales quadratically with pump pulse energy, and is generated over a narrow phase-matching condition. Of importance for future experiments, our results indicate that it is possible to observe nonlinear x-ray processes in crystals at pump intensities exceeding 1016 W/cm2.

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