Research paperComputational Kinetic ModelOther ComputationalExcitation of surface plasmon-polaritons through optically-induced ultrafast transient gratingsOlesia Pashina, Albert Seredin, Giulia Crotti, Giuseppe Della Valle et al.arXiv·2024·10.48550/arxiv.2411.17314·arXiv:2411.17314AbstractWe propose a theoretical scheme for ultrafast generation of surface plasmon polaritons via a transient metagrating formed under two interfering optical pump pulses in a GaAs thin film. A self-consistent extended two-temperature model describes non-equilibrium carrier generation, thermalization, diffusion, recombination, and the resulting permittivity modulation through Drude and band-filling mechanisms, coupled to Maxwell equations in COMSOL Multiphysics. The model predicts that tuning pump and probe parameters can reach critical coupling and efficient SPP generation on sub-picosecond time scales.Read more
Simulated 300 nm GaAs thin film on Ag substrate used to model transient grating formation and SPP excitation at the GaAs/Ag interface.3 propertiesGaAsStudied MaterialAgCapping Or ContactExpand
Research paperComputational Kinetic ModelOther ComputationalExcitation of surface plasmon-polaritons through optically-induced ultrafast transient gratingsOlesia Pashina, Albert Seredin, Giulia Crotti, Giuseppe Della Valle et al.arXiv·2024·10.48550/arxiv.2411.17314·arXiv:2411.17314AbstractWe propose a theoretical scheme for ultrafast generation of surface plasmon polaritons via a transient metagrating formed under two interfering optical pump pulses in a GaAs thin film. A self-consistent extended two-temperature model describes non-equilibrium carrier generation, thermalization, diffusion, recombination, and the resulting permittivity modulation through Drude and band-filling mechanisms, coupled to Maxwell equations in COMSOL Multiphysics. The model predicts that tuning pump and probe parameters can reach critical coupling and efficient SPP generation on sub-picosecond time scales.Read more
Simulated 300 nm GaAs thin film on Ag substrate used to model transient grating formation and SPP excitation at the GaAs/Ag interface.3 propertiesGaAsStudied MaterialAgCapping Or ContactExpand
Research paperComputational Kinetic ModelOther ComputationalExcitation of surface plasmon-polaritons through optically-induced ultrafast transient gratingsOlesia Pashina, Albert Seredin, Giulia Crotti, Giuseppe Della Valle et al.arXiv·2024·10.48550/arxiv.2411.17314·arXiv:2411.17314AbstractWe propose a theoretical scheme for ultrafast generation of surface plasmon polaritons via a transient metagrating formed under two interfering optical pump pulses in a GaAs thin film. A self-consistent extended two-temperature model describes non-equilibrium carrier generation, thermalization, diffusion, recombination, and the resulting permittivity modulation through Drude and band-filling mechanisms, coupled to Maxwell equations in COMSOL Multiphysics. The model predicts that tuning pump and probe parameters can reach critical coupling and efficient SPP generation on sub-picosecond time scales.Read more
Simulated 300 nm GaAs thin film on Ag substrate used to model transient grating formation and SPP excitation at the GaAs/Ag interface.3 propertiesGaAsStudied MaterialAgCapping Or ContactExpand
Research paperComputational Kinetic ModelOther ComputationalExcitation of surface plasmon-polaritons through optically-induced ultrafast transient gratingsOlesia Pashina, Albert Seredin, Giulia Crotti, Giuseppe Della Valle et al.arXiv·2024·10.48550/arxiv.2411.17314·arXiv:2411.17314AbstractWe propose a theoretical scheme for ultrafast generation of surface plasmon polaritons via a transient metagrating formed under two interfering optical pump pulses in a GaAs thin film. A self-consistent extended two-temperature model describes non-equilibrium carrier generation, thermalization, diffusion, recombination, and the resulting permittivity modulation through Drude and band-filling mechanisms, coupled to Maxwell equations in COMSOL Multiphysics. The model predicts that tuning pump and probe parameters can reach critical coupling and efficient SPP generation on sub-picosecond time scales.Read more
Simulated 300 nm GaAs thin film on Ag substrate used to model transient grating formation and SPP excitation at the GaAs/Ag interface.3 propertiesGaAsStudied MaterialAgCapping Or ContactExpand