Effect of transition dipole phase on high-order-harmonic generation in solid materials

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dc.contributor.author Jiang, Shicheng
dc.contributor.author Wei, Hui
dc.contributor.author Chen, Jigen
dc.contributor.author Yu, Chao
dc.contributor.author Lu, Ruifeng
dc.contributor.author Lin, C. D.
dc.date.accessioned 2020-06-17T23:55:09Z
dc.date.available 2020-06-17T23:55:09Z
dc.date.issued 2017-11-27
dc.identifier.uri https://hdl.handle.net/2097/40734
dc.description.abstract High-order harmonic spectra from solid materials driven by single-color multicycle laser fields sometimes contain even harmonics. In this work we attribute the appearance of even harmonics to the nonzero transition dipole phase (TDP) when the solid system has broken symmetry. By calculating the harmonic efficiency from graphene and gapped graphene by using the semiconductor Bloch equations under the tight-binding approximation, we demonstrate the role of the TDP, which has been ignored for a long time. When the crystal has inversion symmetry, or reflection symmetry with the symmetry plane perpendicular to the laser polarization direction, the TDP can be neglected. Without such symmetry, however, the TDP will lead to the appearance of even harmonics. We further show that the TDP is sensitive to the crystal geometry. To extract the structure information from the harmonic spectra of a solid the TDP cannot be ignored.
dc.relation.uri https://doi.org/10.1103/PhysRevA.96.053850
dc.rights This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).
dc.rights.uri https://rightsstatements.org/page/InC/1.0/?language=en
dc.rights.uri https://journals.aps.org/authors/transfer-of-copyright-agreement
dc.subject Particles & Fields
dc.subject Nonlinear Dynamics
dc.subject Atomic, Molecular & Optical
dc.subject Condensed Matter & Materials Physics
dc.title Effect of transition dipole phase on high-order-harmonic generation in solid materials
dc.type Text
dc.date.published 2017
dc.citation.doi 10.1103/PhysRevA.96.053850
dc.citation.epage 053850-11
dc.citation.issn 2469-9934
dc.citation.issue 5
dc.citation.jtitle Physical Review A
dc.citation.spage 053850-1
dc.citation.volume 96
dc.description.version Article: Version of Record (VoR)


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This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s). Except where otherwise noted, the use of this item is bound by the following: This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).

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