National Central University

Ya-Lun Tsai

Jenq-Yang Chang

Ching-Yi Chen

Chii-Chang Chen

Che-Lung Hsu

Chien-Chieh Lee

Chih-Ming Wang

Yung-Chih Liu

Yue-Hong Chou

Mount-Learn Wu

A waveguide has a hollow center. The waveguide has dielectric tubes which have a geometric arrangement, like a triangle-lattice arrangement. A laser transmitted in the waveguide is confined and is emitted out with a narrow expending angle. Hence, the laser is emitted straightly forwarded and has a low power loss. The present invention is suitable for using in a high-power laser and obtaining a directive microwave.

Method of fabricating hollow waveguide having cyclic geometric structure

A silicon bulk-micromachining technology is used to fabricate a GMR filter by exploiting the structure of a suspended silicon nitride (SiNx) membrane on the silicon substrate. A first silicon nitride (SiNx) thin film and a second silicon nitride (SiNx) thin film are formed on opposite sides of the silicon substrate. A first opening is defined in the first silicon nitride (SiNx) thin film, and a grating structure is defined in the second silicon nitride (SiNx) thin film. By etching off a portion of the silicon substrate exposed from the first opening until a portion of the second silicon nitride (SiNx) thin film is exposed from the first opening, a light path space is defined.

Guided-mode resonance filter and fabrication method of same

Growing community of inventors

Taipei, Taiwan

Ya-Lun Tsai