Sep 24 – 30, 2017
La Biodola, Isola d'Elba
Europe/Rome timezone

HDR spatio-temporal intensity mapping by single-shot optical probing

Sep 25, 2017, 4:50 PM
SBIO, Sala Biodola, Hotel Biodola

SBIO, Sala Biodola, Hotel Biodola

talk WG7 - High Brightness Power Sources: from Laser Technology to Beam Drivers WG7_Parallel


Mr Martin Speicher (LMU Munich)


Today’s Petawatt (PW) laser systems are able to focus high power pulses to a few µm spot, achieving intensities up to 10^22 W/cm^2. Precise knowledge of the spatial and temporal intensity profile becomes increasingly important for describing the physics under these extreme conditions. We present a new concept for acquiring high dynamic range (HDR) information of the 2D spatial and temporal intensity distribution of a high power laser in focus. In contrast to established methods that are restricted to significantly reduced laser energy (i.e. focal imaging and 3rd order HDR autocorrelation), our method is able to perform on target at full laser energy. It relies on optical probing of the dynamically generated plasma at a nm-thin foil. By using a temporally chirped probe pulse in combination with image multiplexing, movies with currently around 200 fs temporal and 25 µm spatial resolution can be obtained in a single shot.

Primary author

Mr Martin Speicher (LMU Munich)


Mr Daniel Haffa (LMU Munich) Mr Enrico Ridente (LMU Munich) Mr Jens Hartmann (LMU Munich) Dr Jianhui Bin (LMU Munich) Prof. Jörg Schreiber (LMU Munich) Mr Klaus Allinger (LMU Munich) Mr Tobias Ostermayr (LMU München and MPI-Q)

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