| 摘要 |
PROBLEM TO BE SOLVED: To provide an information recording/reading device, particularly, a near-field optical head having a high optical efficiency, for the purpose of realizing high-density information recording and reading by an interaction with a recording medium through near-field light. SOLUTION: In the periphery of a micro-opening for generating near-field light, a metallic film is formed having a periodic rugged structure, thereby realizing an energy propagating mechanism through plasmon and enhancing optical efficiency. |
