Pulse Front Tilt in SSTF – Setups

It is of high importance to have most of the field energy focused on a singular spot in various disciplines such as material processing, biology, and medicine. A promising procedure to achieve this is the “simultaneous spatial and temporal focusing” (SSTF) where light is spectrally widened with a stretcher setup and is then focused with a lens to get a focal spot that has a minimal size in space and time domain. While in some applications this effect is unwanted, in certain optical regimes such as nonlinear frequency conversion or terahertz generation it can be advantageous.

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