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We introduce hybrid metamaterials consisting of split ring resonators and a graphene nanoribbon array. Electrostatic control of the graphene plasmon resonance provides dynamic control of the transmission of THz radiation with modulation depth of ∼50%.
We present a novel label-free bio-photonic sensing system based on silicon opto-electric integrated circuit (OEIC) platform. The sensing system comprises an electrical-tracing assisted microring and a sensor microring integrating with an on-chip photodetector for direct electrical read-out. Multiplexing is achieved through an array of microrings and integrated photodetectors. Such sensing system circumvents...
This paper reports a compact optical wavelength tracker, which consists of an electrically controlled tunable micro-ring resonator and a flip-chip bonded photodiode. The input optical wavelength is measured and the wavelength change is tracked by analyzing the photocurrent variation of the photodiode. This wavelength tracker has compact size (0.5 mm × 1.5 mm), high resolution (3 pm), cost-effective...
In this paper, a Nano-opto-mechanical (NOM) switch is designed, simulated and experimentally demonstrated, using the electromagnetically induced transparency (EIT)-like effects of coupled-ring resonator. The control of the switch is realized by optical force between the silicon waveguide and the dielectric substrate. As the injection pump power increases from 0 to 6 mW, the normalized power of transmission...
For the first time, we demonstrate experimentally high optical quality factor Q ~9000 in MEMS-compatible silicon Fabry-Pérot (FP) resonators based on free space propagation of light and direct coupling to optical fiber. This result is obtained on long cavity resonators (L >; 250 μm), a usually difficult case in terms of power loss. The resonator design includes two multilayered silicon-air Bragg...
We demonstrate single mode operation of Quantum Cascade lasers employing a folded Fabry-Perot resonator waveguide design. Single mode emission is achieved with ∼20dB side mode suppression up to ∼400mA above threshold current in pulsed operation.
An on-chip glass sphere resonator with prism coupler in microchannel for label-free detection is presented in this paper. A micro glass sphere in polytetrafluoroethylene (PTFE) coated microchannel and two optical fibers for light input and output are integrated onto a polydimethylsiloxane (PDMS) chip. In the experiments, the glass spheres have diameters ranging from 50 ??m to 120 ??m and the PTFE...
We propose a photonic microwave filter based on circulating a cladding mode in a fiber ring resonator with the help of a pair of long-period fiber gratings. Our experimental results agree well with the theory.
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