Abstract High-performance terahertz wave detectors at room temperature are still urgently required for a wide range of applications. The available technologies, however, plagued by low sensitivity, narrow spectral bandwidth, complicated structure, and high noise equivalent power (NEP). Here, we have demonstrated Weyl semimetal surface plasmon-enhanced high-performance which based on microdisk a...

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High-index-contrast compact microdisk resonators in thermally evaporated As2S3 and Ge17Sb12S71 chalcogenide glass films are designed and fabricated using standard UV lithography and characterized. Our pulley coupler configuration demonstrates coupling of the resonators to monolithically integrated photonic wire waveguides without resorting to demanding fine-line lithography. Microdisk resonator...

We report on experimental demonstration of high frequency torsional resonators based on microdisk structures enabled by a “smart-cut” 6H-silicon carbide (6H-SiC) technology. Circular microdisks axially supported by pairs of thin tethers, with diameters of 5–15 lm, exhibit torsional-mode micromechanical resonances with frequency of 1–60 MHz, and quality (Q) factors up to 1280 at room temperature...

In article number 2000459, Gangyi Zhu, Junbo Yang, Peiguang Yan, and co-workers demonstrate degenerate spontaneous four-wave mixing operating in the visible spectral range a GaN microdisk cavity which is driven by A exciton emission monolayer MoS2 cladding. This work provides new insights for research of on-chip light sources helps promote future applications such as broadband integrated source...

Xiyuan Lu, Jonathan Y. Lee, Philip X.-L. Feng, and Qiang Lin Department of Physics and Astronomy, University of Rochester, Rochester, New York 14627, USA Department of Electrical and Computer Engineering, University of Rochester, Rochester, New York 14627, USA Department of Electrical Engineering and Computer Science, Case Western Reserve University, Cleveland, Ohio 44106, USA Institute of Opti...

Whispering Gallery Mode (WGM) microresonators have recently been studied as a means to achieve real-time label-free detection of biological targets such as virus particles, specific DNA sequences, or proteins. Due to their high quality (Q) factors, WGM resonators can be highly sensitive. A biosensor also needs to be selective, requiring proper functionalization of its surface with the appropria...

We discuss our work on light emitters and photonic circuits realized using colloidal quantum dot composites. Specifically we will report our recent work on flexible microcavity laser, microdisk emitters and integrated active – passive waveguides. The entire microcavity laser structure was realized using spin coating and consisted of an allpolymer distributed Bragg reflector with a poly-vinyl ca...

In this review paper we showcase recent activities on silicon photonics science and technology research in Hong Kong regarding two important topical areas — microresonator devices and optical nonlinearities. Our work on silicon microresonator filters, switches and modulators have shown promise for the nascent development of on-chip optoelectronic signal processing systems, while our studies on ...