Understanding Signal-to-Noise Ratio in Heat-Assisted Magnetic Recording

Storage Physics and Noise Mechanism in Heat-Assisted Magnetic Recording

Signal Processing for Bit-Patterned Media and Heat-Assisted Magnetic Recording Systems with Media Noise

With the advent of the information age, the demand for larger storage capacity is ever increasing. However, the need to continue scaling conventional magnetic recording technologies to higher areal densities has led to physical and engineering limits which are difficult to overcome. New magnetic recording technologies are required. Bit-patterned media recording (BPMR) and heat-assisted magnetic...

Characterization of Heat-Assisted Magnetic Recording Channels

The storage capacity of hard disk drives has increased tremendously over the last decade. However, the rate of increase has reached a bottle-neck as the technology approaches a theoretical limit known as the super-paramagnetic limit. Heat-Assisted Magnetic Recording (HAMR) has emerged as one of the important technologies to overcome this limit. The process of heating while writing brings about ...

Patterned medium for heat assisted magnetic recording

Heat assisted magnetic recording HAMR is a potential solution to extend the limits of conventional magnetic recording. In HAMR, the heating of the recording medium is achieved with a near-field optical transducer. Although the literature suggests novel transducers, there is little consideration of the optical and thermal aspects of the magnetic medium. In this letter we suggest a recording medi...

Iterative Timing Recovery for Magnetic Recording Channels with Low Signal-to-Noise Ratio