Abstract
The frequency-resolved optical switching (FROSt) method developed for ultrashort pulse characterization is implemented for single-shot measurements. In this basic demonstration, the delay axis of the spectrogram is spatially encoded by the pump beam having a small incident angle with the photoexcited material. We present the calibration procedure for spectrograms acquired in single-shot and the temporal characterization of 44 fs pulses with central wavelength at 800 nm both in scanning and single-shot FROSt configurations. The retrieved pulses are compared by means of the root-mean-square field error. Finally, the pulses are propagated through a known dispersive material to measure the added group-delay dispersion.
| Original language | English |
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| Pages (from-to) | 35807-35815 |
| Number of pages | 9 |
| Journal | Optics Express |
| Volume | 28 |
| Issue number | 24 |
| DOIs | |
| Publication status | Published - 23 Nov 2020 |