Ensemble properties of charge carriers injected by an ultrashort laser pulse
At a Glance
Section titled “At a Glance”| Metadata | Details |
|---|---|
| Publication Date | 2018-12-07 |
| Journal | Physical review. B./Physical review. B |
| Authors | Muhammad Qasim, Michael S. Wismer, Manoram Agarwal, Vladislav S. Yakovlev |
| Institutions | Max Planck Institute of Quantum Optics, Ludwig-Maximilians-Universität München |
| Citations | 7 |
Abstract
Section titled “Abstract”The average effective mass of charge carriers produced by an intense\nultrashort laser pulse in a transparent solid increases significantly as the\nexcitation mechanism changes from multiphoton transitions to interband\ntunneling. We theoretically investigate this phenomenon for several dielectrics\nand semiconductors. For diamond as a representative dielectric, we present a\ndetailed analysis of the laser-induced change of optical properties. When the\nconcentration of free carriers is high, we find that the average effective mass\ncontrols not only the intraband charge-carrier transport but also the interband\ncontributions to the optical response. We observe that the excitation-induced\nbirefringence is particularly large for parameters where the plasma response\ncompensates for the linear response of an unperturbed solid.\n