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Tuesday, 5 February 2013

Yusuke: HHG in aligned molecules with CEP-controlled pulses

High-order harmonics generated aligned molecules with CEP-controlled pulses are investigated. With short duration pulses harmonics are spectrally broadened due to non-adiabatic effect, which give rise to interferences between adjacent odd harmonics. The overlapped harmonics create interferences that become visible by locking the CEP. The interference contains the information of the phase of harmonics. We compare spectra generated with 25 fs pulses and spectra generated with 10 fs pulses. We have found some characteristics of the interference observing order dependence and molecular alignment dependence of the interference.

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