High-order femtosecond vortices up to the 30th order generated from a powerful mode-locked Hermite-Gaussian laser.

Light Sci Appl · 2023 · PMC10469186 · PMID 37648767

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a clear trendno p-value reported

Figure 3 shows the measured spectra and pulse durations, where a clear trend of pulse duration lengthening accompanied by spectral narrowing can be observed with increasing HG order.

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