Laser induced distortion of band structure in solids: An analytic model

S. Varró, P. Földi, I. F. Barna

Research output: Conference article

Abstract

We consider a spatially periodic (cosine) potential as a model for a crystalline solid that interacts with a harmonically oscillating external electric field. This problem is periodic both in space and time and can be solved analytically using the Kramers-Henneberger co-moving frame. By analyzing the stability of the closely related Mathieu-type differential equation, the electronic band structure can be obtained. We demonstrate that by changing the field intensity, the width of the zero-field band gaps can be drastically modified, including the special case when the external field causes the band gaps to disappear.

Original languageEnglish
Article number012005
JournalJournal of Physics: Conference Series
Volume1206
Issue number1
DOIs
Publication statusPublished - ápr. 17 2019
Event27th Annual International Laser Physics Workshop, LPHYS 2018 - Nottingham, United Kingdom
Duration: júl. 16 2018júl. 18 2018

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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