Molecular engineering of polymer films for amplitude and phase measurements of Ti:sapphire femtosecond pulses.
Using second-harmonic frequency-resolved optical gating and a tricyanovinylaniline polymer thin film, we have measured the amplitude and the phase of mode-locked Ti:sapphire laser pulses as short as 13 fs. These thin films are ideally suited for ultrashort-pulse diagnostics because they eliminate the angle tuning associated with birefringent phase-matched crystals, minimize pulse distortions introduced by group-velocity dispersion, and exhibit excellent photochemical stability.
Yankelevich
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Prêtre
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Knoesen
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Murnane
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Kapteyn
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