Simulation of a Thermally Efficient HAMR Ridge Waveguide NFT on an AIN Heat Sink

Heat-assisted magnetic recording (HAMR) promises to increase the areal data density in hard disk drives beyond 1 Tb/in 2 by raising the temperature of the media to its Curie temperature for writing. The metallic optical near-field transducer (NFT) is a key component of the HAMR system. It confines optical energy to a small region below the diffraction limit on the recording media. The challenge wi...