Isbn: 9783642059162 - progress in nano-electro optics iii: industrial applications and dynamics of the nano-optical system (springer series in optical sciences, band 96) (3 Ergebnisse)

Zustand: New. In English.

Taschenbuch. Zustand: Neu. Druck auf Anfrage Neuware - Printed after ordering - Near- eld optical recording is a promising way to realize a recording density 2 of over 1 Tb/in . In this chapter, we focused on the near- eld optical head, which is a key device for near- eld optical recording. First, we explained the technical issues regarding the near- eld optical head and introduced some solutions to these issues. We focused on a highly e cient near- eld optical head that uses a wedge-shaped metallic plate, and described its optical pr- erties based on a simulation using a nite-di erence time-domain method. The simulation results con rmed that a strong optical near eld is generated at the apex of the metallic plate when a plasmon is excited in the metallic plate. When a TbFeCo recording medium was placed 10 nm from the ne- eld optical head, the size of the optical spot was 30 nm, which corresponds 2 to an areal recording density of approximately 1 Tb/in . The e ciency was 20% if we assume that the incident beam was a Gaussian beam with a full width at half-maximum of 1µ m. Furthermore, we discussed an optical head using two metallic plates. We con rmed through our simulation that a highly localized optical near eld was generated at the gap when the plasmon was excited in the metallic plates. The distribution was 5 nm by 5 nm when the two apices were separated by 5 nm. …

Taschenbuch. Zustand: Neu. Progress in Nano-Electro Optics III | Industrial Applications and Dynamics of the Nano-Optical System | Motoichi Ohtsu | Taschenbuch | Springer Series in Optical Sciences | x | Englisch | 2010 | Springer | EAN 9783642059162 | Verantwortliche Person für die EU: Springer Verlag GmbH, Tiergartenstr. 17, 69121 Heidelberg, juergen[dot]hartmann[at]springer[dot]com | Anbieter: preigu.…