Laser induced distortion of band structure in solids

An analytic model

S. Varró, P. Földi, I. F. Barna

Research output: Contribution to journalConference 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 - Apr 17 2019
Event27th Annual International Laser Physics Workshop, LPHYS 2018 - Nottingham, United Kingdom
Duration: Jul 16 2018Jul 18 2018

Fingerprint

lasers
differential equations
electric fields
causes
electronics

Keywords

  • Band structure of crystalline solids
  • Metal-insulator transitions

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Laser induced distortion of band structure in solids : An analytic model. / Varró, S.; Földi, P.; Barna, I. F.

In: Journal of Physics: Conference Series, Vol. 1206, No. 1, 012005, 17.04.2019.

Research output: Contribution to journalConference article

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