Xiaoqing Jiang

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We report a theoretical study showing that by utilizing the illumination of an external laser, the Surface Plasmon Polaritons (SPP) signals on the graphene sheet can be modulated in the sub-micron scale. The SPP wave can propagate along the graphene in the middle infrared range when the graphene is properly doped. Graphene's carrier density can be modified(More)
— We design and fabricate a four-port wavelength-selective optical router on silicon-on-insulator wafer for photonic networks-on-chip. The router consists of four basic operation blocks. Each is constructed by one microring resonator (MRR) based add-drop filter rather than the traditional two microrings based 2 × 2 optical crossbar. It can provide(More)
A carrier-depletion-based silicon MZ modulator is used for high-speed optical detection by leveraging the defect mediated absorption. As a modulator, the device exhibits a modulation efficiency of V<sub>&#x03C0;</sub>L<sub>&#x03C0;</sub>=1.2 V.cm while as a detector, the responsivity is 22 mA/W at a reverse bias of-7.1 V. An operation speed of 35 Gb/s is(More)
Effect of surface stress on the stiffness of micro/nanocantilevers: Nanowire elastic modulus measured by nano-scale tensile and vibrational techniques Temperature control in thermal microactuators with applications to in-situ nanomechanical testing Appl. Giant enhancement of H2S gas response by decorating n-type SnO2 nanowires with p-type NiO nanoparticles(More)
—A new nanocavity-based electrooptic modulator on silicon-on-insulator is proposed. This nanocavity is formed by a one-dimensional photonic crystal nanobeam cavity with a slot embedded. The slot lies in both the cavity and the distributed Bragg reflectors region. This results in an ultrasmall modal volume of 0.047 and a high-factor of. Another advantage of(More)
Herein, we successfully applied a facile in-situ solid-state synthesis of conducting polymer poly(3,4-ethylenedioxythiophene) (PEDOT) as a HTM, directly on top of the perovskite layer, in conventional mesoscopic perovskite solar cells (PSCs) (n-i-p structure). The fabrication of the PEDOT film only involved a very simple in-situ solid-state polymerisation(More)
We present an ultra-compact modulator with a length of 15 nm by utilizing the squeezing and tunneling ability of the Epsilon-Near-Zero metamaterial. The finite-different time-domain simulations show the insertion loss is roughly -0.27 dB while the 3-dB extinction ratio is obtained with a 0.8 V gate voltage. The device's footprint is as small as 0.01(More)
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