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Quadratic magnetooptic spectroscopy setup based on photoelastic light modulation

The result's identifiers

  • Result code in IS VaVaI

    <a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61989100%3A27640%2F18%3A10240002" target="_blank" >RIV/61989100:27640/18:10240002 - isvavai.cz</a>

  • Alternative codes found

    RIV/61989100:27740/18:10240002 RIV/00216208:11320/18:10387807

  • Result on the web

    <a href="https://www.sciencedirect.com/science/article/pii/S1569441017303693?via%3Dihub" target="_blank" >https://www.sciencedirect.com/science/article/pii/S1569441017303693?via%3Dihub</a>

  • DOI - Digital Object Identifier

    <a href="http://dx.doi.org/10.1016/j.photonics.2018.05.007" target="_blank" >10.1016/j.photonics.2018.05.007</a>

Alternative languages

  • Result language

    angličtina

  • Original language name

    Quadratic magnetooptic spectroscopy setup based on photoelastic light modulation

  • Original language description

    In most of the cases the magnetooptic Kerr effect (MOKE) techniques rely solely on the effects linear in magnetization (M). Nevertheless, a higher-order term being proportional to M-2 and called quadratic MOKE (QMOKE) can additionally contribute to experimental data. Handling and understanding the underlying origin of QMOKE could be the key to utilize this effect for investigation of antiferromagnetic materials in the future due to their vanishing first order MOKE contribution. Also, better understanding of QMOKE and hence better understanding of magnetooptic (MO) effects in general is very valuable, as the MO effect is very much employed in research of ferro- and ferrimagnetic materials. Therefore, we present our QMOKE and longitudinal MOKE spectroscopy setup with a spectral range of 0.8-5.5 eV. The setup is based on light modulation through a photoelastic modulator and detection of second-harmonic intensity by a lock-in amplifier. To measure the Kerr ellipticity an achromatic compensator is used within the setup, whereas without it Kerr rotation is measured. The separation of QMOKE spectra directly from the measured data is based on measurements with multiple magnetization directions. So far the QMOKE separation algorithm is developed and tested for but not limited to cubic (001) oriented samples. The QMOKE spectra yielded by our setup arise from two quadratic MO parameters G(s) and 2G(44), being elements of quadratic MO tensor G, which describes perturbation of the permittivity tensor in the second order in M.

  • Czech name

  • Czech description

Classification

  • Type

    J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database

  • CEP classification

  • OECD FORD branch

    10306 - Optics (including laser optics and quantum optics)

Result continuities

  • Project

    Result was created during the realization of more than one project. More information in the Projects tab.

  • Continuities

    P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Others

  • Publication year

    2018

  • Confidentiality

    S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Data specific for result type

  • Name of the periodical

    Photonics and Nanostructures - Fundamentals and Applications

  • ISSN

    1569-4410

  • e-ISSN

  • Volume of the periodical

    31

  • Issue of the periodical within the volume

    Kveten

  • Country of publishing house

    NL - THE KINGDOM OF THE NETHERLANDS

  • Number of pages

    6

  • Pages from-to

    60-65

  • UT code for WoS article

    000445716900008

  • EID of the result in the Scopus database

    2-s2.0-85047795539