US 7,609,591 B2 · Heat-assisted magnetic recording head

Abstract

A heat-assisted magnetic recording head mounted on an end of a slider having an Air Bearing Surface (“ABS”) for recording data on a recording medium. The heat-assisted magnetic recording head includes a magnetic path forming unit that generates a magnetic field for recording the data, a light source that emits light heating a local region of the recording medium, a waveguide located on a side of the magnet path forming unit to transmit the light emitted from the light source, an optical path conversion unit that changes a direction of the light transmitted from the waveguide to the local region of the recording medium, and a nano-aperture that generates an enhanced near-field effect by converting an energy distribution of the light transmitted via the optical path conversion unit.

Claims15

Dependent claims

A heat-assisted magnetic recording head mounted on an end of a slider having an Air Bearing Surface for recording data on a recording medium, the heat-assisted magnetic recording head comprising:

a magnetic path forming unit that generates a magnetic field for recording the data;
a light source that emits light to heat a local region of the recording medium;
a waveguide located on a side of the magnetic path forming unit, the waveguide transmits the light emitted from the light source;
an optical path conversion unit that changes a direction of the light transmitted from the waveguide to the local region of the recording medium;
and
a nano-aperture configured to generate an enhanced near-field effect by converting an energy distribution of the light transmitted via the optical path conversion unit.

3 more elements

Dependencies are inferred from the claim text.

Heat-assisted magnetic recording head

Life of this patent

Heat-assisted magnetic recording head

Life of this patent

Abstract

Claims15