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dc.contributor.authorLee, Han-Chiehen_US
dc.contributor.authorJiang, Tsin-Fuen_US
dc.date.accessioned2014-12-08T15:36:57Z-
dc.date.available2014-12-08T15:36:57Z-
dc.date.issued2014-10-01en_US
dc.identifier.issn0740-3224en_US
dc.identifier.urihttp://dx.doi.org/10.1364/JOSAB.31.002263en_US
dc.identifier.urihttp://hdl.handle.net/11536/25359-
dc.description.abstractWhen graphene is subjected to a strong light field, its nonlinear optical response allows only odd harmonic emissions because of a centrosymmetric structure. We demonstrate that this limitation no longer holds when the generation of an electric current density is considered within a quantum theory because of the involvement of the Rabi oscillation in the nonlinear optical response. By transforming the time-dependent Dirac equation into the length gauge, the Rabi frequency in graphene can be defined, allowing the identification of the Rabi coupling effect on the current-induced harmonic spectra. In particular, a peak at the spectral position of the second harmonic of the incident light can be generated in graphene when the intensity of the incident light causes the Rabi frequency to become comparable with the frequency of the incident light, which was demonstrated in ZnO with a measurement of carrier-envelope-offset frequency [Phys. Rev. Lett. 90, 217404 (2003)]. Moreover, as the light intensity increases, we show that a broadband harmonic spectrum is generated and that a compact electron distribution caused by multiphoton absorptions is produced because of highly nonlinear effects associated with the Rabi oscillation. (C) 2014 Optical Society of Americaen_US
dc.language.isoen_USen_US
dc.titleNonlinear optics of graphene in the presence of Rabi oscillationen_US
dc.typeArticleen_US
dc.identifier.doi10.1364/JOSAB.31.002263en_US
dc.identifier.journalJOURNAL OF THE OPTICAL SOCIETY OF AMERICA B-OPTICAL PHYSICSen_US
dc.citation.volume31en_US
dc.citation.issue10en_US
dc.citation.spage2263en_US
dc.citation.epage2272en_US
dc.contributor.department物理研究所zh_TW
dc.contributor.departmentInstitute of Physicsen_US
dc.identifier.wosnumberWOS:000343245800010-
dc.citation.woscount0-
Appears in Collections:Articles