A multilayer structure with alternating metal and dielectric layers propagates surface plasmons to a front end face.
Temperature sensors adjust motor drive time for consistent ejection across thermal variations.
Parallel grating slits in the waveguide increase optical coupling efficiency, resolving insufficient heating rate limits in heat-assisted magnetic recording.
Graded thickness in a V-shaped plasmon generator dissipates heat to prevent magnetic pole degradation while maintaining optical-power efficiency.
A waveguide structure uses non-periodic near-field transducer spacing to measure optical energy absorption with reduced interference.
Metallic auxiliary structure concentrates surface plasmons to increase thermal gradient by 50% while preventing magnetic pole material degradation.
Positioning a protective member closer to the disk than the objective lens prevents collisions with protrusions during focus servo failures.
A navigation area stores management information to organize multiple reproduction paths and playitems for seamless switching between different video streams.
A plasmon generator with a high melting point metallic layer maintains surface plasmon propagation for higher-density magnetic recording.
An optical disc drive uses multiple light sources and an objective lens actuator to detect disc types by adjusting wavelengths.
PRML detection method sets constraint length based on beam spot diameter and channel bit frequency to stabilize signal reading.
Media disk interface skips failed sectors during current revolution to minimize seek-times and power consumption while preserving drive operational lifetime.
Control circuitry characterizes laser output power against input current and temperature to maintain optimal recording performance.
Separate protective films on a thermally assisted magnetic head prevent deformation while maintaining magnetic data reading sensitivity.
Arcuate channels in the drive enclosure accommodate laser diode unit movement, preventing destructive contact during pinch force testing.
A read transducer oriented at a distinct skew angle aligns with bit boundaries in heat-assisted magnetic recording media.
A tapered optical output device delivers near-field light to heat magnetic recording layers.
A spot size converter core and cladding structure directs light to a submicron spot without adding lens weight.
A conductive shield between the near-field transducer and thermal sensor blocks stray radiation.
A half bowtie aperture nanoscale optical antenna focuses light into nanometer-size spots with high intensity.