An EOM-assisted wave-vector-resolving Brillouin light scattering setup

Details An EOM-assisted wave-vector-resolving Brillouin light scattering setup An EOM-assisted wave-vector-resolving Brillouin light scattering setup

2009-03-09

arxiv.org/abs/0903.1536v1

Rev. Sci. Instrum. 80, 053905 (2009)

Physics

Condensed Matter

Other Condensed Matter

5 pages, 5 figures

Scientific paper

10.1063/1.3131663

Brillouin light scattering spectroscopy is a powerful technique which incorporates several extensions such as space-, time-, phase- and wave-vector resolution. Here, we report on the improvement of the wave-vector resolution by including an electro-optical modulator. This provides a reference to calibrate the position of the diaphragm hole which is used for wave-vector selection. The accuracy of this calibration is only limited by the accuracy of the wave-vector measurement itself. To demonstrate the validity of the approach the wave vectors of dipole-dominated spin waves excited by a microstrip antenna were measured.

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