AI Article Synopsis

  • The Polaris laser system, a fully diode-pumped chirped-pulse amplification laser, achieved maximum energy pulses of 54.2 J before compression, with a spectral bandwidth of 18 nm at a wavelength of 1033 nm.
  • Despite restrictions from the vacuum compressor, compressed pulses were achieved at 98 fs duration with an energy of 16.7 J, resulting in a peak power of 170 TW.
  • The laser pulses exhibit an ultra-high temporal contrast, making them ideal for high-intensity laser-matter experiments.

Article Abstract

We report on results from the fully diode-pumped chirped-pulse amplification laser system Polaris. Pulses were amplified to a maximum energy of 54.2 J before compression. These pulses have a full width at half-maximum spectral bandwidth of 18 nm centered at 1033 nm and are generated at a repetition rate of 0.02 Hz. To the best of our knowledge, these are the most energetic broadband laser pulses generated by a diode-pumped laser system so far. Due to the limited size of our vacuum compressor, only attenuated pulses could be compressed to a duration of 98 fs containing an energy of 16.7 J, which leads to a peak power of 170 TW. These pulses could be focused to a peak intensity of 1.3×10  W/cm. Having an ultra-high temporal contrast of 10 with respect to amplified spontaneous emission these laser pulses are well suited for high-intensity laser-matter experiments.

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http://dx.doi.org/10.1364/OL.41.005413DOI Listing

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