| Autor: |
Qasim, Muhammad, Wismer, Michael S., Agarwal, Manoram, Yakovlev, Vladislav S. |
| Rok vydání: |
2018 |
| Předmět: |
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| Zdroj: |
Phys. Rev. B 98, 214304 (2018) |
| Druh dokumentu: |
Working Paper |
| DOI: |
10.1103/PhysRevB.98.214304 |
| Popis: |
The average effective mass of charge carriers produced by an intense ultrashort laser pulse in a transparent solid increases significantly as the excitation mechanism changes from multiphoton transitions to interband tunneling. We theoretically investigate this phenomenon for several dielectrics and semiconductors. For diamond as a representative dielectric, we present a detailed analysis of the laser-induced change of optical properties. When the concentration of free carriers is high, we find that the average effective mass controls not only the intraband charge-carrier transport but also the interband contributions to the optical response. We observe that the excitation-induced birefringence is particularly large for parameters where the plasma response compensates for the linear response of an unperturbed solid. |
| Databáze: |
arXiv |
| Externí odkaz: |
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