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http://hdl.handle.net/2445/131958
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DC Field | Value | Language |
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dc.contributor.author | Hyyti, Janne | - |
dc.contributor.author | Perestjuk, Marko | - |
dc.contributor.author | Mahler, Felix | - |
dc.contributor.author | Grunwald, Rüdiger | - |
dc.contributor.author | Güell Vilà, Frank | - |
dc.contributor.author | Gray, Ciarán | - |
dc.contributor.author | McGlynn, Enda | - |
dc.contributor.author | Steinmeyer, Günter | - |
dc.date.accessioned | 2019-04-10T11:25:15Z | - |
dc.date.available | 2019-04-10T11:25:15Z | - |
dc.date.issued | 2018-02-19 | - |
dc.identifier.issn | 0022-3727 | - |
dc.identifier.uri | http://hdl.handle.net/2445/131958 | - |
dc.description.abstract | The near-ultraviolet photoluminescence of ZnO nanorods induced by multiphoton absorption of unamplified Ti:sapphire pulses is investigated. Power dependence measurements have been conducted with an adaptation of the ultrashort pulse characterization method of interferometric frequency-resolved optical gating. These measurements enable the separation of second harmonic and photoluminescence bands due to their distinct coherence properties. A detailed analysis yields fractional power dependence exponents in the range of 3-4, indicating the presence of multiple nonlinear processes. The range in measured exponents is attributed to differences in local field enhancement, which is supported by independent photoluminescence and structural measurements. Simulations based on Keldysh theory suggest contributions by three- and four-photon absorption as well as avalanche ionization in agreement with experimental findings. | - |
dc.format.extent | 12 p. | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | - |
dc.publisher | Institute of Physics (IOP) | - |
dc.relation.isformatof | Versió postprint del document publicat a: https://doi.org/10.1088/1361-6463/aaaabe | - |
dc.relation.ispartof | Journal of Physics D-Applied Physics, 2018, vol. 51, num. 10, p. 105306 | - |
dc.relation.uri | https://doi.org/10.1088/1361-6463/aaaabe | - |
dc.rights | (c) Institute of Physics (IOP), 2018 | - |
dc.source | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) | - |
dc.subject.classification | Nanoestructures | - |
dc.subject.classification | Luminescència | - |
dc.subject.classification | Mesuraments òptics | - |
dc.subject.other | Nanostructures | - |
dc.subject.other | Luminescence | - |
dc.subject.other | Optical measurements | - |
dc.title | Field Enhancement of Multiphoton Induced Luminescence Processes in ZnO Nanorods | - |
dc.type | info:eu-repo/semantics/article | - |
dc.type | info:eu-repo/semantics/acceptedVersion | - |
dc.identifier.idgrec | 677079 | - |
dc.date.updated | 2019-04-10T11:25:15Z | - |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | - |
Appears in Collections: | Articles publicats en revistes (Enginyeria Electrònica i Biomèdica) |
Files in This Item:
File | Description | Size | Format | |
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677079.pdf | 2.47 MB | Adobe PDF | View/Open |
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