Complete Characterization of Phase and Amplitude of Bichromatic Extreme Ultraviolet Light

Michele Di Fraia, Oksana Plekan, Carlo Callegari, Kevin C. Prince, Luca Giannessi, Enrico Allaria, Laura Badano, Giovanni De Ninno, Mauro Trovò, Bruno Diviacco, David Gauthier, Najmeh Mirian, Giuseppe Penco, PrimoŽ Rebernik Ribič, Simone Spampinati, Carlo Spezzani, Giulio Gaio, Yuki Orimo, Oyunbileg Tugs, Takeshi SatoKenichi L. Ishikawa, Paolo Antonio Carpeggiani, Tamás Csizmadia, Miklós Füle, Giuseppe Sansone, Praveen Kumar Maroju, Alessandro D'Elia, Tommaso Mazza, Michael Meyer, Elena V. Gryzlova, Alexei N. Grum-Grzhimailo, Daehyun You, Kiyoshi Ueda

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Abstract

Intense, mutually coherent beams of multiharmonic extreme ultraviolet light can now be created using seeded free-electron lasers, and the phase difference between harmonics can be tuned with attosecond accuracy. However, the absolute value of the phase is generally not determined. We present a method for determining precisely the absolute phase relationship of a fundamental wavelength and its second harmonic, as well as the amplitude ratio. Only a few easily calculated theoretical parameters are required in addition to the experimental data.

Original languageEnglish
Article number213904
JournalPhysical review letters
Volume123
Issue number21
DOIs
Publication statusPublished - 2019 Nov 22

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Di Fraia, M., Plekan, O., Callegari, C., Prince, K. C., Giannessi, L., Allaria, E., Badano, L., De Ninno, G., Trovò, M., Diviacco, B., Gauthier, D., Mirian, N., Penco, G., Ribič, P. R., Spampinati, S., Spezzani, C., Gaio, G., Orimo, Y., Tugs, O., ... Ueda, K. (2019). Complete Characterization of Phase and Amplitude of Bichromatic Extreme Ultraviolet Light. Physical review letters, 123(21), [213904]. https://doi.org/10.1103/PhysRevLett.123.213904