6533b851fe1ef96bd12a9980
RESEARCH PRODUCT
Harmonic generation from nanorings driven by a two-color laser field
Dario CricchioEmilio Fiordilinosubject
PhysicsAngular momentumPhotonAngular frequencySettore FIS/02 - Fisica Teorica Modelli E Metodi MatematiciPhysics and Astronomy (miscellaneous)business.industryPhysics::OpticsPhoton energyLaserPolarization (waves)Settore FIS/03 - Fisica Della Materialaw.inventionhigh harmonic generation nanoring polarizationOpticslawHarmonicsHigh harmonic generationAtomic physicsbusinessInstrumentationdescription
We study the high harmonic generation and the polarization of the harmonics emitted by a nanoring driven by two laser fields of angular frequency ?1 and ?2, with ?2?=?2?1, and ?1 resonant between the ground and the first excited state. We show that by varying parameters, such as laser intensity, photon energy and the delay between the two laser pulses, we can control the number of harmonics and the polarization of the radiation. In particular we show that with this choice of two-laser photon frequency rate we obtain more harmonics with respect to other configurations. We also calculated the average absorbed energy and the average angular momentum acquired by the electron as a function of the intensity of the two lasers obtaining spikes of angular momentum.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2014-04-30 |