Progress in Nano-Electro Optics III: Industrial Applications and Dynamics of the Nano-Optical System

Near-field 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-field optical head, which is a key device for near-field optical recording. First, we explained the technical issues regarding the near-field optical head and introduced some solutions to these issues. We focused on a highly efficient near-field optical head that uses a wedge-shaped metallic plate, and described its optical pr- erties based on a simulati...