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arXiv · 1505.06081

Spatiotemporal characterization of ultrashort optical vortex pulses

Miguel Miranda·Marija Kotur·Piotr Rudawski·Chen Guo·Anne Harth·Anne L'Huillier·Cord L. Arnold
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Abstract

Generation of few-cycle optical vortex pulses is challenging due to the large spectral bandwidths, as most vortex generation techniques are designed for monochromatic light. In this work, we use a spiral phase plate to generate few-cycle optical vortices from an ultrafast titanium:sapphire oscillator, and characterize them in the spatiotemporal domain using a recently introduced technique based on spatially resolved Fourier transform spectrometry. The performance of this simple approach to the generation of optical vortices is analyzed from a wavelength dependent perspective, as well as in the spatiotemporal domain, allowing us to completely characterize ultrashort vortex pulses in space, frequency, and time.

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Miguel Miranda, Marija Kotur, Piotr Rudawski, Chen Guo, Anne Harth, Anne L'Huillier, Cord L. Arnold. 2015-05-22. Spatiotemporal characterization of ultrashort optical vortex pulses. https://arxiv.org/abs/1505.06081

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