초록 ▼

A magneto-optical element comprises a film of a Bi-substituted rare earth iron garnet selected from garnets of the following chemical formulas (BixGdyRzY3-x-y-z)(Fe5-wGaw)O12 wherein R represents at least one element selected from the group consisting of rare earth elements other than Gd, and x, y,

A magneto-optical element comprises a film of a Bi-substituted rare earth iron garnet selected from garnets of the following chemical formulas (BixGdyRzY3-x-y-z)(Fe5-wGaw)O12 wherein R represents at least one element selected from the group consisting of rare earth elements other than Gd, and x, y, z and w are such that 1.00≤x≤1.30, 0.42≤y≤0.60, 0.01≤z≤0.05 and 0.40≤w≤0.62, and (Bix′Gdy′Rz′Y3-x′-y′-z′)Fe5O12 wherein R is as defined above, and x′, y′and z′are such that 1.10≤x′≤1.30, 1.00≤y′≤1.80, 0≤z′≤0.06. An optical magnetic field sensor capable of detecting zeroth to higher order beams of diffracted light is also described.

대표청구항 ▼

A magneto-optical element comprising a film of a Bi-substituted rare earth iron garnet selected from the group consisting of garnets of the following chemical formulas (3) and (4) (BixGdyRzY3-x-y-z)(Fe5-wGaw)O12(3) wherein R represents at least one element selected from the group consisting of rare

A magneto-optical element comprising a film of a Bi-substituted rare earth iron garnet selected from the group consisting of garnets of the following chemical formulas (3) and (4) (BixGdyRzY3-x-y-z)(Fe5-wGaw)O12(3) wherein R represents at least one element selected from the group consisting of rare earth elements other than Gd, and x, y, z and w are such that 1.00≤x≤1.30, 0.42≤y≤0.60, 0.01≤z≤0.05 and 0.40≤w≤0.62, and (Bix′Gdy′Rz′Y3-x′-y′-z′)Fe5O12 (4) wherein R is as defined above, and x′, y′and z′are such that 1.10≤x′≤1.30, 1.00≤y′≤1.80, 0≤z′≤0.06 provided that x′+y′≤3.0.