نتایج جستجو برای: resonant state
تعداد نتایج: 883286 فیلتر نتایج به سال:
In this paper we formulate a theory for the analysis of resonant enhanced multi photon ionization processes in molecules. Our approach consists of viewing the (n + m) photon ionization process from an isotropic initial state as m -photon ionization out of an oriented, excited state. The orientation in this resonant state, which is reached by n -photon excitation from the initial state, is nonis...
Resonant metal nanostructures exhibit an optically induced electrostatic potential when illuminated with monochromatic light under off-resonant conditions. This plasmoelectric effect is thermodynamically driven by the increase in entropy that occurs when the plasmonic structure aligns its resonant absorption spectrum with incident illumination by varying charge density. As a result, the elevate...
We study the strain state of doubly clamped VO2 nanobeam devices by dynamically probing resonant frequency of the nanoscale electromechanical device across the metal-insulator transition. Simultaneous resistance and resonance measurements indicate M1-M2 phase transition in the insulating state with a drop in resonant frequency concomitant with an increase in resistance. The resonant frequency i...
In high-intensity laser light, matter can be ionized by direct multiphoton absorption even at photon energies below the ionization threshold. However on tuning the laser to the lowest resonant transition, the system becomes multiply excited, and more efficient, indirect ionization pathways become operative. These mechanisms are known as interatomic Coulombic decay (ICD), where one of the specie...
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