Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Shayne M. Harrel"'
Publikováno v:
Photonic Instrumentation Engineering X.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::32624793fe1fdd1092fcbe8af66ab6de
https://doi.org/10.1117/12.2650117
https://doi.org/10.1117/12.2650117
Publikováno v:
Photonic Instrumentation Engineering IX.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::54c779ec0ead3a075573788687107440
https://doi.org/10.1117/12.2610776
https://doi.org/10.1117/12.2610776
Autor:
Charles A. Schmuttenmaer, Matthew C. Beard, Eric Beaurepaire, Jean-Yves Bigot, Gordon M. Turner, Shayne M. Harrel
Publikováno v:
Applied Physics Letters. 84:3465-3467
It is shown that the laser induced ultrafast demagnetization of ferromagnetic films results in the emission of a terahertz electromagnetic pulse. This emission has been detected from Ni films using free-space electro-optic sampling. The radiated elec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b80ae1c51cefc3e005f9d87b331257dd
https://doi.org/10.1063/1.1737467
https://doi.org/10.1063/1.1737467
Publikováno v:
Springer Series in Chemical Physics ISBN: 9783540959458
We report the dependence of optical rectification and shift currents in unbiased GaAs(111) on the excitation beam polarization using THz emission spectroscopy. When exciting slightly above bandgap with elliptically polarized light, the emission is st
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::93f198cc68e414b545ec540fb82b03e4
https://doi.org/10.1007/978-3-540-95946-5_210
https://doi.org/10.1007/978-3-540-95946-5_210
Publikováno v:
Frontiers in Optics 2007/Laser Science XXIII/Organic Materials and Devices for Displays and Energy Conversion.
The dependence of THz pulse emission on surface orientation has been used to study carrier dynamics in GaAs(111). We find that the angular dependence of linearly polarized excitation is well described by known theory.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0dc13b887acef8f0c4df07f841b8871f
https://doi.org/10.1364/ls.2007.lthe4
https://doi.org/10.1364/ls.2007.lthe4
Autor:
Shayne M. Harrel, Jean-Yves Bigot, Charles A. Schmuttenmaer, Eric Beaurepaire, James M. Schleicher
Publikováno v:
Ultrafast Phenomena XV ISBN: 9783540687795
THz pulse emission is used to study demagnetization dynamics in single crystal iron and polycrystalline nickel films of thickness from 5 to 60 nm. Bulk and surface contributions each play a role, and their origins are discussed.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::01700525702265071e2e7d61662c4473
https://doi.org/10.1007/978-3-540-68781-8_253
https://doi.org/10.1007/978-3-540-68781-8_253
Autor:
Shayne M. Harrel, Eric Beaurepaire, Charles A. Schmuttenmaer, James M. Schleicher, Jean-Yves Bigot
Publikováno v:
Physical Chemistry of Interfaces and Nanomaterials IV.
Much can be learned about charge and magnetization dynamics at surfaces and in nanometer thickness films through terahertz emission spectroscopy (TES). In some respects, TES is the difference-frequency analog of second harmonic generation (SHG). As s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::19544437ba1d80383e4bede22540c05b
https://doi.org/10.1117/12.623174
https://doi.org/10.1117/12.623174
Autor:
Charles A. Schmuttenmaer, James M. Schleicher, Jean-Yves Bigot, Eric Beaurepaire, Shayne M. Harrel
Publikováno v:
Optical Terahertz Science and Technology.
Intramolecular electron transfer dynamics in liquids and magnetization dynamics in metallic films have been studied with THz emission spectroscopy. In liquids, the solvent influences electron transfer. In magnetic samples, there are surface and bulk
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b879eb33e42520858e0e6f5d6c8d5ab8
https://doi.org/10.1364/otst.2005.tub1
https://doi.org/10.1364/otst.2005.tub1
Publikováno v:
Journal of Applied Physics. 107:033526
ZnTe(110) is widely used as a source of terahertz radiation generated by optical rectification. However, when ZnTe(110) is excited with 800 nm light, optical rectification is not the only process which can occur. Specifically, second harmonic generat
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3a4a78fef143ee08db511792bb932548
https://doi.org/10.1063/1.3296064
https://doi.org/10.1063/1.3296064
Publikováno v:
Journal of Applied Physics. 105:113116
The influence of elliptically and circularly polarized excitation on terahertz emission from unbiased bulk GaAs at normal incidence and room temperature is reported. Illumination of GaAs above the bandgap produces both spin-polarized electrons and sh
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::748413b8ab1ebf4fb2b3a99e77c3930d
https://doi.org/10.1063/1.3133093
https://doi.org/10.1063/1.3133093