Non-perturbative Interband Response of InSb Driven Off-resonantly by Few-cycle Electromagnetic Transients
Autor: | Junginger, F., Mayer, B., Schmidt, C., Schubert, O., Mährlein, S., Leitenstorfer, A., Huber, R., Pashkin, A. |
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Rok vydání: | 2012 |
Předmět: | |
Zdroj: | Phys. Rev. Lett. 109, 147403 (2012) |
Druh dokumentu: | Working Paper |
DOI: | 10.1103/PhysRevLett.109.147403 |
Popis: | Intense multi-THz pulses are used to study the coherent nonlinear response of bulk InSb by means of field-resolved four-wave mixing spectroscopy. At amplitudes above 5 MV/cm the signals show a clear temporal substructure which is unexpected in perturbative nonlinear optics. Simulations based on a two-level quantum system demonstrate that in spite of the strongly off-resonant character of the excitation the high-field pulses drive the interband resonances into a non-perturbative regime of Rabi flopping. Comment: 4 pages, 4 figures |
Databáze: | arXiv |
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