Resonant magnetic response of TiO2 microspheres at terahertz frequencies
| hal.structure.identifier | Institute of Physics | |
| dc.contributor.author | NEMEC, H. | |
| hal.structure.identifier | Institute of Physics | |
| dc.contributor.author | KADLEC, C. | |
| hal.structure.identifier | Institute of Physics | |
| dc.contributor.author | KADLEC, F. | |
| hal.structure.identifier | Institute of Physics | |
| dc.contributor.author | KUZEL, P. | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | YAHIAOUI, Riad | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| hal.structure.identifier | Centre de recherches Paul Pascal [CRPP] | |
| dc.contributor.author | CHUNG SEU, U-Chan | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | ELISSALDE, Catherine | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | MAGLIONE, Mario | |
| hal.structure.identifier | Laboratoire Ondes et Matière d'Aquitaine [LOMA] | |
| dc.contributor.author | MOUNAIX, Patrick | |
| dc.date.issued | 2012 | |
| dc.identifier.issn | 0003-6951 | |
| dc.description.abstractEn | Spray-drying technique is used to fabricate spherical microparticles out of dissolved TiO2 nanoparticles. We show both experimentally and through numerical calculations that the microspheres support a Mie resonance, leading to an effective magnetic response. For this purpose, nearly single layers of microspheres were prepared and characterized by time-domain terahertz spectroscopy. We developed an experimental approach allowing simultaneous measurement of complex transmittance and reflectance of a thin layer, which in turn enables evaluation of its effective dielectric permittivity and effective magnetic permeability. Numerical finite-element-method calculations of the electromagnetic response show that the prepared microparticles are suitable for preparing a metamaterial with negative effective magnetic permeability. | |
| dc.language.iso | en | |
| dc.publisher | American Institute of Physics | |
| dc.subject.en | Dielectric materials | |
| dc.subject.en | Emission spectroscopy | |
| dc.subject.en | Optical metamaterials | |
| dc.subject.en | Terahertz spectroscopy | |
| dc.subject.en | Finite-element analysis | |
| dc.subject.en | Nanoparticle | |
| dc.subject.en | Light scattering | |
| dc.subject.en | Electromagnetic interactions | |
| dc.subject.en | Laser micromachining | |
| dc.subject.en | Transition metal oxides | |
| dc.title.en | Resonant magnetic response of TiO2 microspheres at terahertz frequencies | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1063/1.3683540 | |
| dc.subject.hal | Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci] | |
| dc.subject.hal | Sciences de l'ingénieur [physics]/Electromagnétisme | |
| bordeaux.journal | Applied Physics Letters | |
| bordeaux.page | 061117 | |
| bordeaux.volume | 100 | |
| bordeaux.issue | 6 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00669368 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00669368v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Applied%20Physics%20Letters&rft.date=2012&rft.volume=100&rft.issue=6&rft.spage=061117&rft.epage=061117&rft.eissn=0003-6951&rft.issn=0003-6951&rft.au=NEMEC,%20H.&KADLEC,%20C.&KADLEC,%20F.&KUZEL,%20P.&YAHIAOUI,%20Riad&rft.genre=article |
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