A
A. R. B. de Castro
Researcher at State University of Campinas
Publications - 59
Citations - 2471
A. R. B. de Castro is an academic researcher from State University of Campinas. The author has contributed to research in topics: Ionization & Laser. The author has an hindex of 23, co-authored 59 publications receiving 2367 citations. Previous affiliations of A. R. B. de Castro include University of California, Berkeley & Lawrence Berkeley National Laboratory.
Papers
More filters
Journal ArticleDOI
Surface-enhanced Second-harmonic Generation
TL;DR: Second harmonic generation at a silver-air interface was enhanced due to surface roughness by a factor of 10{sup 4} as mentioned in this paper, which is believed to be responsible for the effect An unusually broad luminescence background extending far beyond the antiStokes side of the second harmonic was also observed
Journal ArticleDOI
Multiple ionization of atom clusters by intense soft X-rays from a free-electron laser.
H. Wabnitz,L. Bittner,A. R. B. de Castro,R. Döhrmann,P. Gürtler,Tim Laarmann,W. Laasch,Joachim Schulz,A. Swiderski,K. von Haeften,K. von Haeften,Thomas Möller,Bart Faatz,A. Fateev,A. Fateev,J. Feldhaus,Ch. Gerth,U. Hahn,E.L. Saldin,Evgeni Schneidmiller,K. Sytchev,Kai Tiedtke,Rolf Treusch,Mikhail Yurkov +23 more
TL;DR: Initial results from a study of the interaction of soft X-ray radiation, generated by a free-electron laser, with Xe atoms and clusters are presented, finding that, whereasXe atoms become only singly ionized by the absorption of single photons, absorption in clusters is strongly enhanced.
Journal ArticleDOI
Multistep ionization of argon clusters in intense femtosecond extreme ultraviolet pulses.
Christoph Bostedt,H. Thomas,M. Hoener,E. Eremina,Thomas Fennel,Karl-Heinz Meiwes-Broer,H. Wabnitz,Marion Kuhlmann,Elke Plönjes,Kai Tiedtke,Rolf Treusch,Josef Feldhaus,A. R. B. de Castro,Thomas Möller +13 more
TL;DR: The interaction of intense extreme ultraviolet femtosecond laser pulses from the FLASH free electron laser with clusters is investigated by means of photoelectron spectroscopy and modeled by Monte Carlo simulations and finds no evidence for electron emission from plasma heating processes.
Journal ArticleDOI
The effect of nanocrystal surface structure on the luminescence properties: Photoemission study of HF-etched InP nanocrystals
S. Adam,Dmitri V. Talapin,Holger Borchert,Arun Lobo,C. McGinley,A. R. B. de Castro,Markus Haase,Horst Weller,T. Möller +8 more
TL;DR: High-resolution photoelectron spectroscopy with the use of synchrotron radiation was applied to reveal the changes of the nanocrystal surface responsible for the dramatic improvement of the PL efficiency and proposed the description of the etching mechanism.
Journal ArticleDOI
Multiple Ionization of Rare Gas Atoms Irradiated with Intense VUV Radiation
TL;DR: The interaction of intense vacuum-ultraviolet radiation from a free-electron laser with rare gas atoms is investigated and the mechanisms of multiphoton processes were derived.