Wspólnotowy Serwis Informacyjny Badan i Rozwoju - CORDIS


SHARP Streszczenie raportu

Project ID: HPRI-CT-2001-50037
Źródło dofinansowania: FP5-HUMAN POTENTIAL
Kraj: France

Device to measure contrast over 10-12 orders of magnitude

The high dynamic correlator is based on an efficient all reflective attenuation system coupled with high efficiency thin nonlinear frequency conversion BBO crystals to keep ultra-short duration pulses with high intensity at the zero delay.

The system allows to measure a contrast dynamic of 10{12}, covers a temporal range of one nanosecond, which matchs measurements achieved with fast photodiode , and has a temporal resolution of 80fs.

Removable off-axis parabolic mirrors were added to allow direct measurements of the temporal contrast of femtosecond Titanium sapphire oscillators by focusing the beams onto the non-linear crystals.

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91761 Palaiseau
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