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24 October 2017 Interaction of ultrashort pulse with two-level medium beyond the slowly varying envelope approximation
Da-qing Wen Jr., Long-zhao Lu Jr., Xiang-yang Yu
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Proceedings Volume 10457, AOPC 2017: Laser Components, Systems, and Applications; 1045720 (2017) https://doi.org/10.1117/12.2284673
Event: Applied Optics and Photonics China (AOPC2017), 2017, Beijing, China
Abstract
By solving the Maxwell-Bloch equations beyond the slowly varying envelope approximation (SVEA), we investigate the interaction of ultrashort pulse with two-level medium. When the pulse width decreases to the order of the optical period, the evolutions of the 2π, 4π and 6π ultrashort pulses deviate from the results obtained using the SVEA and present some new features, such as the frequency shift occurring on the trailing edge of the pulse. Moreover, a factor is defined to quantify the envelope deviation between the cases of the SVEA and the non-SVEA in order to quantitatively evaluate the error caused by the SVEA, then we discuss the applicable condition of the approximation.
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Da-qing Wen Jr., Long-zhao Lu Jr., and Xiang-yang Yu "Interaction of ultrashort pulse with two-level medium beyond the slowly varying envelope approximation", Proc. SPIE 10457, AOPC 2017: Laser Components, Systems, and Applications, 1045720 (24 October 2017); https://doi.org/10.1117/12.2284673
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KEYWORDS
Ultrafast phenomena
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