Nonlinear Ionization of Molecules by Intense Transform-Limited Gaussian Laser Pulses
| Autor: | Salima Hennani, Samira Barmaki, Marc-André Albert, Stéphane Laulan |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Materials science
Matrix-assisted laser desorption electrospray ionization business.industry Physics::Optics Electron Laser Spectral line Atmospheric-pressure laser ionization law.invention Optics law Ionization Ultrafast laser spectroscopy High harmonic generation Physics::Atomic Physics Atomic physics business |
| Zdroj: | Optics and Photonics Journal. :309-315 |
| ISSN: | 2160-889X 2160-8881 |
| DOI: | 10.4236/opj.2014.411031 |
| Popis: | We present in this paper an investigation of the nonlinear process of above-threshold ionization. The process arises when an atomic or molecular system, exposed to an intense laser pulse, continues to absorb more photons than that needed for the ionization to occur. We trigger this nonlinear process in a simple molecular system by exposing it to an intense transform-limited Gaussian laser pulse of 267-nm wavelength which is the third harmonic of an 800-nm wavelength Tisapphire laser. We explore the characteristics of the process by analyzing the kinetic-energy spectra of the electrons ejected from the molecular system under different laser peak intensities. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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