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Accepted author manuscript, 773 KB, PDF document
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Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
| <mark>Journal publication date</mark> | 24/07/2017 |
|---|---|
| <mark>Journal</mark> | Optics Express |
| Issue number | 15 |
| Volume | 25 |
| Number of pages | 9 |
| Pages (from-to) | 17271-17279 |
| Publication Status | Published |
| Early online date | 11/07/17 |
| <mark>Original language</mark> | English |
We apply active feedback optimization methods to pyroelectric measurements of a THz signal generated by four wave mixing in air using 1 mJ to 12 mJ, 35 fs laser pulses operating at 1/2 kHz repetition rate. A genetic algorithm, using the THz signal as a figure of merit, determines the voltage settings to a deformable mirror and results in up to a 6 fold improvement in the THz signal compared with settings optimized for the best focus. It is possible to optimize for different THz generation processes using this technique. (C) 2017 Optical Society of America