THERMAL LENS COUPLED MAGNETOOPTICAL EFFECT IN A FERROFLUID

Authors
DU TD YUAN SH LUO WL
Citation
Td. Du et al., THERMAL LENS COUPLED MAGNETOOPTICAL EFFECT IN A FERROFLUID, Applied physics letters, 65(14), 1994, pp. 1844-1846
Citations number
7
Categorie Soggetti
Physics, Applied
Journal title
Applied physics letters → ACNP
ISSN journal
00036951
Volume
65
Issue
14
Year of publication
1994
Pages
1844 - 1846
Database
ISI
SICI code
0003-6951(1994)65:14<1844:TLCMEI>2.0.ZU;2-V
Abstract
A magnetic-field-induced diffraction pattern was studied by a new tech nique: thermal lens coupled magneto-optical effect. In low fields, the diffraction angle has an almost quadratic dependence: thetais-proport ional-toH2. This effect can be used as an all optical magnetic field s ensor with a resolution of 0.5 Oe, with a potential for further improv ement. The method can also lead to the measurement of the onset of agg lomeration in the sample. (C) 1994 American Institute of Physics.