Patent ID: 8681594

Claim:
An EAMR disk drive comprising: a media; a laser for providing energy; a slider having an air-bearing surface, a laser input side, an EAMR transducer and an antireflective coating (ARC) layer occupying a portion of the laser input side, the ARC layer configured to reduce back reflections of the energy, the laser being coupled with the slider, the EAMR transducer including a write pole, a waveguide optically coupled with the laser and at least one coil, the waveguide having a waveguide input, a portion of the ARC layer residing between the laser and the waveguide input, the laser having a laser spot diameter at the laser input side, the portion of the laser input side occupied by the ARC layer including an area covering and greater than the waveguide input and terminating within the laser spot diameter of the waveguide input.