Gizem Celep

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The standard velocity-map imaging (VMI) analysis relies on the simple approximation that the residual Coulomb field experienced by the photoelectron ejected from a neutral or ion system may be neglected. Under this almost universal approximation, the photoelectrons follow ballistic (parabolic) trajectories in the externally applied electric field, and the(More)
Electron-lattice energy exchanges are investigated in gold and silver nanoparticles with sizes ranging from 30 to 2.2 nm embedded in different environments. Femtosecond pump-probe experiments performed in the low-perturbation regime demonstrate a strong increase of the intrinsic electron-phonon interaction for nanoparticles smaller than 10 nm due to a(More)
Correspondence to; Gizem Celep email: ABSTRACT Products that are produced by various industries such as agriculture, food, mining, chemistry, and textile cannot meet the needs of humankind since the world’s population continues to grow exponentially. Furthermore, the reduction in natural resources forced researchers to produce new(More)
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