Amorphization of Si(100) by Ar+-ion bombardment studied with spectroscopic and time-resolved second-harmonic generation

Autor: PM Paul Gevers, Hcw Herman Beijerinck, Jjh Joost Gielis, van de Mcm Richard Sanden, Wmm Erwin Kessels

Publikováno v: Journal of Vacuum Science and Technology A: Vacuum, Surfaces, and Films, 28(2), 293-301. AVS Science and Technology Society

The surface and interface sensitive technique of optical second-harmonic generation (SHG) has been applied spectroscopically and time-resolved before, during, and after low energy (70–1000 eV) Ar+-ion bombardment of H-terminated Si(100). The photon

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f7573bde642f3e38294bf898ea5fe94a
https://doi.org/10.1116/1.3305812

Amorphous silicon layer characteristics during 70-2000 eV Ar+-ion bombardment of Si(100)

Autor: Aae Alquin Stevens, Wmm Erwin Kessels, van de Mcm Richard Sanden, Hcw Herman Beijerinck

Publikováno v: Journal of Vacuum Science and Technology A: Vacuum, Surfaces, and Films, 24(5), 1933-1940. AVS Science and Technology Society

Spectroscopic ellipsometry (SE) has been applied to characterize the damaged, amorphous silicon (a-Si) layer created by Ar+-ion bombardment in the ion energy range of 70-2000 eV impinging at 45 Deg angle of incidence on Si(100). The dielec. functions

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9a31e21bcdcbd73629c3a7ce03da5137
https://doi.org/10.1116/1.2244535

Laser-cooling simulation based on the semiclassical approach

Autor: Kah Ton van Leeuwen, B Bart Smeets, RW Rudolf Herfst, P Peter van der Straten, E Edwin te Sligte, Hcw Herman Beijerinck

Publikováno v: Smeets, B, Herfst, R W, te Sligte, E, van der Straten, P, Beijerinck, H C W & van Leeuwen, K A H 2005, ' Laser-cooling simulation based on the semiclassical approach ', Journal of the Optical Society of America. B: Optical Physics, vol. 22, no. 11, pp. 2372-2377 . https://doi.org/10.1364/JOSAB.22.002372
Journal of the Optical Society of America. B: Optical Physics, 22(11), 2372-2377. The Optical Society
Journal of the Optical Society of America B: Optical Physics, 22(11), 2372-2377. Optical Society of America (OSA)

We investigate the region of validity of the semiclassical approach to simulating laser cooling. We conclude that for the commonly used pi(x) pi(y) polarization-gradient configuration, the semiclassical approach is valid only for transitions with rec

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc684a9fe38d50634c51e7fba4e77a8d
https://doi.org/10.1364/josab.22.002372

Laser frequency stabilization using an Fe-Ar hollow cathode discharge cell

Autor: Rcm Roeland Bosch, van der P Peter Straten, te E Edwin Sligte, B Bart Smeets, Hcw Herman Beijerinck, Robert E. Scholten, van Kah Ton Leeuwen

Publikováno v: Applied Physics B: Lasers and Optics, B76(8), 815-819. Springer

Polarization spectroscopy of an Fe-Ar hollow cathode discharge cell was used to lock a frequency-doubled Ti:sapphire laser to the 372-nm5D4→5F5 transition of 56Fe. The discharge cell produced a density of 1018 m-3 ground-state 56Fe atoms at a tempe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8fea01eb2ba6edd58f43886054b6fc95
https://doi.org/10.1007/s00340-003-1228-1

Magnetic nanodots from atomic Fe: Can it be done?

Autor: Rcm Roeland Bosch, te E Edwin Sligte, van Kah Ton Leeuwen, Hcw Herman Beijerinck, B Bart Smeets, van der P Peter Straten

Publikováno v: Proceedings of the National Academy of Sciences. 99:6509-6513

Laser focusing of Fe atoms offers the possibility of creating separate magnetic structures on a scale of 10 nm with exact periodicity. This can be done by using the parabolic minima of the potential generated by a standing light wave as focusing lens

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9eb46267219652067ed3f47303552ca6
https://doi.org/10.1073/pnas.072525199