Industrial Technology Research Institute

Chih-Yuan Wu

Tzuan-Ren Jeng

Wen-Yih Liao

Jau-Jiu Ju

Yuan-Chin Lee

Chi-Lone Chang

Kuo-Chi Chiu

Jyh-Shong Ju

A near-field optical head objective lens that can read and write high-density data on an optical disc is disclosed. On a surface where an incident beam converges by the near-field optical head objective lens, a film that can produce surface plasmon effect is coated. As the incident beam hits the material and produces the surface plasmon, a micro aperture is generated to minimize the diameter of the light spot, thereby increasing the data capacity stored in the optical disc.

Near-field objective lens for an optical head

Growing community of inventors

Hsinchu Hsien, Taiwan

Chih-Yuan Wu