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⁤Ultrashort laser pulses, ranging from a few to hundreds of femtoseconds, have become a revolutionary tool in various fields of science and technology. ⁤⁤These pulses have enabled the emergance of new scientific fields, such as femtochemistry, which investigates chemical reactions on a femtosecond timescale, and attosecond science, which explores subatomic motion on the attosecond scale. ⁤

 

Applications of ultrafast laser sources often require an accurate characterization. ⁤⁤The dispersion scan technique, or d-scan, introduced in 2012 thanks to a collaboration between Lund and Porto universities, has become a widely used technique to measure the temporal profile of ultrashort laser pulses. ⁤⁤However, the d-scan method can only provide a measurement of an average pulse in a pulse train. ⁤⁤This limits its effectiveness in applications with significant variations between pulses, which are common in high-intensity laser systems. ⁤

 

⁤My research project aims to develop the d-scan technique, allowing for individual pulse measurement while expanding its applicability across different wavelengths and pulse durations. ⁤⁤In addition, I am exploring computational methods to enhance the pulse retrieval algorithm's speed, including the implementation of artificial neural networks. ⁤⁤The ultimate goal is to develop a robust and efficient technique capable of rapidly characterizing individual ultrashort laser pulses.

Free keywords

  • Ultrafast lasers
  • Ultrashort pulse characterization

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