Application of SNOM technology to ultrahigh density optical recording

Probe-based ultrahigh-density storage technology

ultrahigh-density storage technology A. Pantazi A. Sebastian T. A. Antonakopoulos P. Bächtold A. R. Bonaccio J. Bonan G. Cherubini M. Despont R. A. DiPietro U. Drechsler U. Dürig B. Gotsmann W. Häberle C. Hagleitner J. L. Hedrick D. Jubin A. Knoll M. A. Lantz J. Pentarakis H. Pozidis R. C. Pratt H. Rothuizen R. Stutz M. Varsamou D. Wiesmann E. Eleftheriou Ultrahigh storage densities can be achi...

Recording Characteristics of High-Density Thin Optical Disk Using Near-Field Optical Recording

Several integrated broadcast-broadband services, such as Hybridcast, have recently been launched which allow viewers to receive content via the airwaves together with additional information about the content via the Internet. By sharing personal preferences such as viewing histories with service providers, viewers can expect more attractive and personalized services. Viewing histories used for ...

Optical impedance matching with scanning near-field optical microscopy (SNOM)

Perpendicular Thin Films of Carbon-Doped FePt for Ultrahigh-Density Magnetic Recording Media

The microstructural and magnetic properties of the carbon-doped equiatmoic (Fe50Pt50)1 C thin films, prepared by dc magnetron cosputtering on MgO (100) substrates held at 400 C, were investigated. Particles consisting of the highly anisotropic tetragonal L10 FePt phase and embedded in a C matrix were obtained. By controlling the added C content, the samples with average grain size of 5 nm were ...

Nonlinear Cross Talk Cancellation for High Density Optical Recording

This paper deals with cross talk cancellation for high density optical recording. The data density can be increased reducing the track pitch, as long as cross talk is kept under control. To cope with interference from adjacent tracks, we propose and analyze an adaptive nonlinear cross talk canceller based on a three spot detection system. The optical channel is accurately modeled by a two-dimen...