Head Analysis in Air Flow on Near-Field Optical Disk System with 2-Axis Actuator

Abstract

Several near field optical disk systems have been proposed and are expected to be the tools for realizing large-capacity optical disk storage systems. However, there remains a concern as to whether removability can be realized in near-field optical disk systems. To resolve this concern, we analyze a near-field optical head installed onto a 2-axis actuator in an air flow. Finally, we conclude that a conical head and the active servo of a 2-axis actuator contribute to the stability of near-field playability with respect to dust robustness.