Prof. Huiguo Cao Profile

Prof. Huiguo Cao

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Proceedings Article | 10 October 2020 Poster + Presentation + Paper

Interference resonant propagation of two-colour femtosecond Gaussian pulses in three-level Λ-type atomic medium

Zhendong Wang, Huiguo Cao

Proceedings Volume 11558, 115580M (2020) https://doi.org/10.1117/12.2572965

KEYWORDS: Femtosecond phenomena, Numerical analysis

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The interference resonant propagation of two-color 4π-4π femtosecond Gaussian pulses in three-level Λ-type atomic medium with different values of the relative phase φ is investigated by using numerical solution, which is obtained by the finite-difference time domain (FDTD) method and the iterative predictor–corrector (PC) method for the full Maxwell-Bloch equations. It is found that, for a smaller value of the φ, the pulse splitting occurs, and when the value of the φ increases to a certain value, only the variation of pulse shape present but the pulse splitting no longer occurs; accordingly, their spectral strengths and frequency ranges of the two-color pulses decrease remarkably with the value of φ increasing; Moreover, the relative phase also has an obvious effect on population, different population evolutions can be achieved by adjusting the value of φ.

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