City University of Hong Kong

Shuyan Zhu

Stella W Pang

Chi Hou Chan

Kwai-Man Luk

Gengbo Wu

Yuanlong Li

A guided-wave-driven metasurface antenna includes an input for receiving a guided wave; an output for outputting a free-space wave; and a spatial frequency mixer connected between the input and the output for converting the guided wave to the free-space wave. The spatial frequency mixer is implemented by a metasurface of the antenna. The superheterodyne metasurface can be fabricated with high accuracy using lithography step similar to conventional waveguides made by the well-established semiconductor processing technology, making their integration with PICs straightforward.

Guided-wave-driven metasurface antennas

A fluidic apparatus for detection of a chemical substance, a biosensor, and a method of fabricating the fluidic apparatus. The fluidic apparatus includes a fluidic structure arranged to receive a sample containing a target substance, and a trapping structure, in fluid communication with the fluidic structure and arranged to immobilize the target substance in a detection region, wherein the detection region of the trapping structure is arranged to alter a physical characteristic of an incident light signal which represents a concentration of the target substance contained in the sample.

Fluidic apparatus for detection of a chemical substance, a biosensor and a method of fabricating the fluidic apparatus

A method of fabricating an array of plasmonic structures, a biosensor and a method of fabricating the biosensor. The biosensor includes: an array of plasmonic structures arranged on a base, and defining a detection surface distanced from the base; a separator arranged to separate at least a main portion of a cell from the detection surface; wherein the biosensor is arranged to detect, based on a change of an optical property of the array of plasmonic structures, in response to one or more protrusions extending from the main portion of the cell reaching the detection surface.

Method of fabricating an array of plasmonic structures, a biosensor and a method of fabricating a biosensor

An antenna and methods of fabricating the antenna and a resonator of the antenna. The antenna includes an antenna feed arranged to emit an electromagnetic signal along a predetermined direction; a resonator disposed adjacent to the antenna feed arranged to improve a directivity of the electromagnetic signal being emitted by the antenna feed; wherein the resonator includes a first reflector and a second reflector sandwiching a resonating cavity therebetween; and wherein the first reflector includes a curved reflector surface.

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Hong Kong, China

Shuyan Zhu