Perturbative High Harmonic Wave Front Control.
We pattern the wave front of a high harmonic beam by intersecting the intense driving laser pulse that generates the high harmonic with a weak control pulse. To illustrate the potential of wave-front control, we imprint a Fresnel zone plate pattern on a harmonic beam, causing the harmonics to focus and defocus. The quality of the focus that we achieve is measured using the spectral wave-front optical reconstruction by diffraction method. We will show that it is possible to enhance the peak intensity by orders of magnitude without a physical optical element in the path of the extreme ultraviolet (XUV) beam. Through perturbative wave-front control, XUV beams can be created with a flexibility approaching what technology allows for visible and infrared light.
Department of Physics, University of Ottawa, 25 Templeton St., Ottawa, ON, Canada K1N 6N5.|Joint Attosecond Science Laboratory, National Research Council and University of Ottawa, 100 Sussex Drive, Ottawa, Ontario, Canada K1A 0R6.
Zhengyan
Z
Li
Department of Physics, University of Ottawa, 25 Templeton St., Ottawa, ON, Canada K1N 6N5.|Joint Attosecond Science Laboratory, National Research Council and University of Ottawa, 100 Sussex Drive, Ottawa, Ontario, Canada K1A 0R6.
Graham
G
Brown
Department of Physics, University of Ottawa, 25 Templeton St., Ottawa, ON, Canada K1N 6N5.|Joint Attosecond Science Laboratory, National Research Council and University of Ottawa, 100 Sussex Drive, Ottawa, Ontario, Canada K1A 0R6.
Dong Hyuk
DH
Ko
Department of Physics, University of Ottawa, 25 Templeton St., Ottawa, ON, Canada K1N 6N5.|Joint Attosecond Science Laboratory, National Research Council and University of Ottawa, 100 Sussex Drive, Ottawa, Ontario, Canada K1A 0R6.
Fanqi
F
Kong
Department of Physics, University of Ottawa, 25 Templeton St., Ottawa, ON, Canada K1N 6N5.|Joint Attosecond Science Laboratory, National Research Council and University of Ottawa, 100 Sussex Drive, Ottawa, Ontario, Canada K1A 0R6.
Ladan
L
Arissian
Department of Physics, University of Ottawa, 25 Templeton St., Ottawa, ON, Canada K1N 6N5.|Joint Attosecond Science Laboratory, National Research Council and University of Ottawa, 100 Sussex Drive, Ottawa, Ontario, Canada K1A 0R6.
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PB
Corkum