Near field transducer with shaped energy radiating end
AssigneeSeagate Technology LLC
InventorsKaizhong Gao, Yongjun Zhao, William A. Challener, Xuhui Jin
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Abstract
A magnetic recording head consists of a write pole and a near field transducer close to the write pole that focuses light energy to a focal point. A near field transducer is positioned to receive light energy from a waveguide. The near field transducer comprises an energy-receiving end and an energy-radiating end. The energy-receiving end is located near the focal point of the waveguide and the energy-radiating end is shaped such that it is narrower closer to the write pole and wider farther from the write pole.
Claims21
An apparatus comprising:
- a write pole;
- a near field transducer positioned proximate the write pole, comprising an energy-radiating end, located proximate a recording medium, wherein the energy-radiating end is in the shape of at least one of a parallelogram and a rhombus.
The apparatus of claim 11 wherein the energy-radiating end includes a gap profile between two nanorod tips.
A system comprising:
- a write pole;
- a waveguide located proximate the write pole that focuses light energy to a focal point;
- a recording medium disposed beneath the write pole and waveguide;
- and
- a near field transducer positioned proximate the write pole, comprising an energy-radiating end, located proximate a recording medium, wherein the energy-radiating end is in the shape of at least one of a parallelogram and a rhombus.
An apparatus comprising:
- a write pole;
- a near field transducer positioned proximate the write pole, comprising an energy-radiating end, located proximate a recording medium, wherein the energy-radiating end is in the shape of a concave trapezoid.
Dependencies are inferred from the claim text.