Simulations of ultrafast laser-induced excitation and heating of electron sub-system of semiconductors with the Vinogradov equation and multi-band Keldysh formula
- Resource Type
- Conference
- Authors
- Gruzdev, Vitaly; Austin, Drake; Sergaeva, Olga; Chowdhury, Enam
- Source
- 2017 XXXIInd General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS) General Assembly and Scientific Symposium of the International Union of Radio Science (URSI GASS), 2017 XXXIInd. :1-4 Aug, 2017
- Subject
- Aerospace
Bioengineering
Communication, Networking and Broadcast Technologies
Components, Circuits, Devices and Systems
Computing and Processing
Engineered Materials, Dielectrics and Plasmas
Fields, Waves and Electromagnetics
Photonics and Electrooptics
Signal Processing and Analysis
Absorption
Laser modes
Mathematical model
Ionization
Semiconductor lasers
Ultrafast optics
Photonic band gap
- Language
High-intensity laser interactions with band-gap solids are frequently simulated with the Keldysh photoionization-rate formula and the Drude model to describe light absorption and related heating of conduction-band electrons. That approach suffers from several internal contradictions. We fix some of them by combining the Vinogradov equation for energy absorption with multi-band version of the Keldysh equation for the rate of photoionization.