External mirror reflects laser light to waveguide, resolving alignment challenges and reducing optical energy loss.
Hierarchical defective list storage reduces temporary area consumption and update time while preventing data loss during power failures.
A near field transducer incorporates an angled sacrificial structure separated by a barrier to absorb vacancies and densify the air bearing surface.
Dynamic rotation speed adjustment reduces near-field optical element degradation while maintaining recording quality.
A head slider uses light absorbing members to project read and write elements for magnetic spacing adjustment.
A clock controlling circuit switches master clock frequencies based on demodulating and error correcting block counter comparisons.
Embedded nickel alloy sensor monitors temperature and impending touchdowns to resolve thermal instability in high density magnetic recording.
Through-hole apertures in a substrate align lasers with EAMR transducers, resolving assembly precision trade-offs.
A polarization microscope detects magnetic field effects from sub-resolution structures using a magneto-optical transducer.
A variable velocity inspection method uses frequency band-elimination filters to extract residual focus and tracking errors from optical discs.
An integrated sensor detects emitted laser light to adjust power levels, resolving measurement precision and device complexity trade-offs.
A dielectric cavity within the waveguide core reduces optical feedback to the light source in heat-assisted magnetic recording heads.
Segmented waveguides with split assist cores improve laser-to-NFT coupling efficiency, reducing stray light and required write power.
A settling judgment method calculates position error using a dynamic slice value and sample count to determine object stability.
A near-field light generator uses plasmons at metal-insulating interfaces to localize electromagnetic energy for magnetic recording.
A semiconductor laser device uses a single alignment mark exposed on both mounting and bonding surfaces to suppress attachment errors during substrate bonding.
Free-space optics direct laser energy to an EAMR transducer on a slider, resolving alignment accuracy issues in manufacturing.
A planar plasmon generator uses a peg to confine surface plasmons near the write head.
A slider step structure aligns a protruded light source emission center with a waveguide incident center for precise joining.
A thermally assisted magnetic recording head uses a near-field light generator to heat the disk and suppress thermal fluctuations.
An adaptive dual heater mode adjusts read and write head spacing via thermal expansion to optimize data storage performance.
Hard mask patterning and disc deposition form a planar near field transducer structure that reduces peg-disc separation variability.
Wafer bonding integrates a VCSEL laser directly onto an energy-assisted magnetic recording head interface surface, reducing fabrication complexity and cost.
A dual-mode magnetic head distributes write access between perpendicular and thermal-assisted recording paths.
A playback selection menu highlights the middle position option upon power restoration to simplify resuming content.
Capillary self-assembly aligns reduced-diameter fiber Bragg grating probes into compact bundles, eliminating crosstalk and reducing insertion loss.
A magnetic recording head embeds a main pole tip in a waveguide groove to deliver optical energy for thermal assistance.
A periodic waveform analysis method classifies media defects by comparing harmonic magnitude ratios against thresholds.
A near-field light generating element concentrates surface plasmons to produce high-intensity optical spots.
A slider sensor measures laser diode optical power changes to detect mode hops during heat-assisted magnetic recording write operations.
Electrical Joule heating of a near-field transducer replaces optical systems, reducing power consumption while maintaining data stability.
A thermal resistor layer between the magnetic and heat sink layers manages vertical heat flow in thin film structures.
A magnetic recording head uses a tapered spot size converter and waveguide to reduce light spot size.
Sequential etching with distinct masks shapes the accommodation layer, resolving manufacturing complexity while enabling efficient near-field light generation.
A plasmon generator uses a composite structure with a high-conductivity first portion and a harder second portion to excite surface plasmons.
A plasmon shield confines edge plasmon modes to shrink the optical spot, enabling higher areal density without scaling down the tip radius.
An asymmetric multi-tipped spot size converter matches the laser diode profile to reduce coupling loss and misalignment tolerance issues.
Radiochromic coatings on optical discs change translucency when exposed to specific radiation wavelengths, preventing unauthorized playback before purchase.
Dynamic focus and tilt adjustments correct spherical aberrations from varying layer depths, eliminating bulky correction mechanisms.
Injecting light through the end face eliminates side absorption limits, expanding clear aperture and tuning range.
A measurement method converts layer modulation values to a standard optical system for accurate cross-device comparison.