National Yang Ming Chiao Tung University

Yen-Chieh Wang

Cheng-Sheng Huang

Chan-Te Hsiung

An optical displacement sensing system is provided. With configuration of an optical sensor disposed on a displacement platform and in cooperation with a broadband light source and an optical spectrum analyzer, when the displacement platform moves, the waveguide grating of the optical sensor is resonated and the reflected light provided with a resonance wavelength is formed. The waveguide grating has the plurality of grating periods, and when the displacement platform moves to a different position to make the broadband light source correspond to a different grating period, the position can correspond to the different resonance wavelength. Therefore, according to the aforementioned configuration, the position is determined according to the different resonance wavelength, instead of using an optical encoder; furthermore, the micrometer-scale or nanometer-scale displacement detection is achieved.

Optical displacement sensing system

A biological signal analyzing device configured to generate a first detection image or a second detection image is provided. The biological signal analyzing device includes a light-incident surface, a light-emitting surface and a plurality of optical-resonance structures. The sample is placed near the light incident surface, and receives a first light through the sample. The light resonance structures are configured to process the first light and generate a second and third light. The second light emits from the light emitting surface, and adapted to form the first detection image corresponding to the sample, and the third light emits from the light incident surface, and adapted to form the second detection image corresponding to the sample. The optical resonance structures vary their thickness along the first direction or vary the width along the second direction. A biological sensing apparatus, a sensing method and a fabrication method are also provided.

Growing community of inventors

Hualien, Taiwan

Yen-Chieh Wang