Thermal lens coupled magneto-optical effect in a ferrofluid
- 3 October 1994
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 65 (14) , 1844-1846
- https://doi.org/10.1063/1.112861
Abstract
A magnetic‐field‐induced diffraction pattern was studied by a new technique: thermal lens coupled magneto‐optical effect. In low fields, the diffraction angle has an almost quadratic dependence: θ∝H2. This effect can be used as an all optical magnetic field sensor with a resolution of 0.5 Oe, with a potential for further improvement. The method can also lead to the measurement of the onset of agglomeration in the sample.Keywords
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