Abstract
We report a modulational instability (MI) analysis of a mathematical model appropriate for ultrashort pulses in cascaded-quadratic-cubic nonlinear media beyond the so-called slowly varying envelope approximation. The study shows the possibility of controlling the generation of MI and formation of solitons in a cascaded-quadratic-cubic medium in the few-cycle regimes.
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Acknowledgement
Authors would like to express their sincere gratitude and thanks to the anonymous reviewers for their positive and critical comments which helped in improving the results of the work. A.K.S. sincerely thanks the Department of Science and Technology, Government of India for a research grant (grant no. SR/FTP/PS-17/2008).
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Sarma, A.K., Kumar, P. Modulation instability of ultrashort pulses in quadratic nonlinear media beyond the slowly varying envelope approximation. Appl. Phys. B 106, 289–293 (2012). https://doi.org/10.1007/s00340-011-4826-3
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DOI: https://doi.org/10.1007/s00340-011-4826-3