Heat-assisted recording head having sub wavelength mirror formed of first and second materials

A recording head comprising:

• a pair of subwavelength focusing mirrors proximate a media-facing surface of the recording head, the subwavelength focusing mirrors separated from each other by a crosstrack gap, the subwavelength focusing mirrors each comprising:
• a first material at the media-facing surface comprising Rh;
• and
• a liner comprising Au or Al that contacts and covers the first material at a first edge of the subwavelength focusing mirror that faces the crosstrack gap and further covers a second edge of the sub wavelength focusing mirror that faces away from and is parallel to the media-facing surface, the first edge having a concave curve;
• a near-field transducer proximate the media-facing surface in the crosstrack, the near-field transducer extending further away from the media-facing surface than the subwavelength focusing mirrors, the near-field transducer comprising:
• an enlarged part having a first convex curved end facing the first edges of the subwavelength focusing mirrors and a second convex curved end facing away from the media-facing surface;
• and
• a peg protruding from the first curved end towards the media-facing surface;
• and
• a channel waveguide that extends to the media-facing surface and delivers light to the near-field transducer and the subwavelength focusing mirrors.