Spatiotemporal pulse characterization with far-field beamlet cross-correlation
We present a novel, straightforward method for spatiotemporal characterization of ultra-short laser pulses. The method employs far-field interferometry and inverse Fourier transform spectroscopy, built on the theoretical basis derived in this paper. It stands out in its simplicity: it requires few n...
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| creator | Smartsev, Slava Tata, Sheroy Liberman, Aaron Adelberg, Michael Mohanty, Arujash Levine, Eitan Y Seemann, Omri Yang, Wan Kroupp, Eyal Lahaye, Ronan Thaury, Cedric Malka, Victor |
| description | We present a novel, straightforward method for spatiotemporal characterization of ultra-short laser pulses. The method employs far-field interferometry and inverse Fourier transform spectroscopy, built on the theoretical basis derived in this paper. It stands out in its simplicity: it requires few non-standard optical elements and simple analysis algorithms. This method was used to measure the space-time intensity of our 100 TW class laser and to test the efficacy of a refractive doublet as a suppressor of pulse front curvature (PFC). The measured low-order spatiotemporal couplings agreed with ray-tracing simulations. In addition, we demonstrate a one-shot measurement technique, derived from our central method, which allows for quick and precise alignment of the compressor by pulse front tilt (PFT) minimization and for optimal refractive doublet positioning for the suppression of PFC. |
| doi_str_mv | 10.48550/arxiv.2202.13139 |
| format | Article |
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| subjects | Algorithms Couplings Cross correlation Far fields Fourier transforms Measurement techniques Optical components Optimization Physics - Optics Ray tracing |
| title | Spatiotemporal pulse characterization with far-field beamlet cross-correlation |
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