CPC G11B 13/08 (2013.01) [G11B 2005/0021 (2013.01)] | 19 Claims |
1. A heat-assisted magnetic recording head comprising a near-field transducer comprising:
a plasmonic disk; and
a multilayer near-field emitter configured to produce a hot spot on a magnetic disk that is proximal to the near-field transducer;
wherein the multilayer near-field emitter is disposed in a down-track direction relative to and coupled to the plasmonic disk, and
wherein the multilayer near-field emitter comprises:
a first layer having a first optical extinction coefficient; and
a second layer coupled to the first layer and haying a second optical extinction coefficient that is different than the first optical extinction coefficient.
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