Theory of Multi-Frequency Raman Generation Spectrum with Chirped Pulses

Veen, Joscelyn van der

doi:10.1364/fio.2022.jtu5a.26

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2023

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“…In the future, we will use numerical optimization techniques that allow us to find the global minimum and possibly have more variables in the system. We will also look to compare our results with a theoretical model of the time-varying two-photon resonant process [18].…”

Section: Discussionmentioning

confidence: 99%

Time-Dependent, Two-Photon Rabi Frequency Shift Observed in Multi-Frequency Raman Spectra

Xu,

Jin,

Strickland

2023

Applied Sciences

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It has been observed that when the multi-frequency Raman scattering process is pumped by two frequency chirped pulses in the transient regime, the anti-Stokes orders are spectrally broadened on the lower-frequency side, causing each of the orders to have a broader spectrum with double-peak pattern. In this article, we employ frequency-resolved optical gating to study the spectral shift of the first anti-Stokes Raman order. A double-pulse model is introduced to determine the electric field of the anti-Stokes orders from the experimental FROG spectrogram. With the help from the double-pulse model, we demonstrate that the double-peaked spectrum comes from linear Raman scattering between manifolds in the two-photon dressed states.

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Section: Discussionmentioning

confidence: 99%