In:
Review of Scientific Instruments, AIP Publishing, Vol. 74, No. 11 ( 2003-11-01), p. 4718-4722
Abstract:
A two-dimensional (2D) image of magneto-optical Kerr effect measurement system has been designed and constructed. The magnetic field is provided by two cylindrical permanent magnets in the 0–8000 G range. To avoid beam deviation and other problems in the measurement, an electronically controlled liquid crystal retarder with a fixed polarizer was used to detect the polarization change of the light at the 546.1 nm wavelength. The Fourier transformation method was used to retrieve the Kerr signal in data analysis. The Kerr image signal was measured by using a 2D charge coupled diode (CCD) array detector with 1536×1024 pixels. In terms of a telescope with 1:1 optical magnification, the CCD pixel detects the Kerr signal that is produced by the microsurface of the sample with the area size equaling to that of the pixel. The image Kerr effect of GdFe film sample was measured with the results to show that the 2D Kerr pattern can map the in-plane distribution of the magnetic property of the sample surface.
Type of Medium:
Online Resource
ISSN:
0034-6748
,
1089-7623
Language:
English
Publisher:
AIP Publishing
Publication Date:
2003
detail.hit.zdb_id:
209865-9
detail.hit.zdb_id:
1472905-2
SSG:
11
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