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Article Dans Une Revue Optics Express Année : 2008

Patterned two-photon illumination by spatiotemporal shaping of ultrashort pulses

Résumé

Multiphoton excitation by temporally focused pulses can be combined with spatial Fourier-transform pulse shaping techniques to enhance spatial control of the excitation volume. Here we propose and demonstrate an optical system for the generation of such spatiotemporally engineered light pulses using a combination of spatial control by a two-dimensional reconfigurable light modulator, with a dispersive optical setup for temporal focusing. We show that although the properties of a holographic beam significantly differ from those of plane-wave illumination used in previous temporal focusing realizations, this leads only to a slightly reduced axial resolution. We show that the system can provide scanning-less, arbitrarily shaped, depth resolved excitation patterns that offer new perspectives for multiphoton photoactivation and optical lithography applications.
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Dates et versions

hal-01963248 , version 1 (21-12-2018)

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Eirini Papagiakoumou, Vincent de Sars, Dan Oron, Valentina Emiliani. Patterned two-photon illumination by spatiotemporal shaping of ultrashort pulses. Optics Express, 2008, 16 (26), pp.22039-22047. ⟨10.1364/OE.16.022039⟩. ⟨hal-01963248⟩

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