Abstract
Ultrashort pulse characterization is sufficiently mature that temporal amplitude and phase profiles are now routinely acquired. However, most implementations either ignore or average over spatial variations. Nontrivial spatio-temporal couplings play a significant role in many ultrafast sources, such as chirped-pulse and optical parametric amplifiers, and can strongly affect many applications, such as high-harmonic generation and materials processing. This motivates the development of methods for full spatio-temporal characterisation [1, 2]. Most current designs involve augmenting an existing temporal characterisation method with additional components such as a spatially resolved interferometer [3]. Such implementations usually complicate usage and it is therefore important to devise a simple setup with a minimum number of components and straightforward usage.
© 2011 Optical Society of America
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