A5043691687- Photonic and Optical Devices
- Photonic Crystals and Applications
- Advanced Photonic Communication Systems
- Plasmonic and Surface Plasmon Research
- Semiconductor Lasers and Optical Devices
- Gold and Silver Nanoparticles Synthesis and Applications
- Optical Coatings and Gratings
- Optical Network Technologies
- Advanced Fiber Laser Technologies
- Advanced Fiber Optic Sensors
- Nanofabrication and Lithography Techniques
- Metamaterials and Metasurfaces Applications
- Microwave Engineering and Waveguides
- Antenna Design and Analysis
- Advanced biosensing and bioanalysis techniques
- Quantum Mechanics and Non-Hermitian Physics
- Mechanical and Optical Resonators
- Iron oxide chemistry and applications
- Industrial Vision Systems and Defect Detection
- Surface Roughness and Optical Measurements
- Thin-Film Transistor Technologies
- Human-Automation Interaction and Safety
- Terahertz technology and applications
- Energy Load and Power Forecasting
- Advanced Aircraft Design and Technologies
Shanghai University
2021
The University of Texas at Austin
2014-2020
IPG Photonics (United States)
2020
Advanced Technology Group (Czechia)
2020
Sun Yat-sen University
2019
Omega Optics (United States)
2018-2019
Solar Energy Research Institute of Sun Yat-sen University
2019
Illinois Institute of Technology
2015
University of Alabama in Huntsville
2012-2014
In order to manufacture large-scale photonic devices of various dimensions at a low cost, number printing-based patterning techniques have been developed.
In this paper, we present on-chip optical true time delay lines based on slow light one-dimensional (1D) fishbone photonic crystal waveguides (FPCWs). The structural is generated by modulating the index guided mode with periodically arranged sidewalls along propagation direction. Due to reduced overlap rough etched surface, loss of 1D FPCW significantly compared two-dimensional waveguide. A 65 ps/mm observed experimentally.
In an on-chip silicon-organic hybrid electro-optic (EO) modulator, the mode overlap with EO materials, in-device effective r33, and propagation loss are among most critical factors that determine performance of modulator. Various waveguide structures have been proposed to optimize these factors, yet there is a lack comprehensive consideration on all them. this Letter, one-dimensional (1D) photonic crystal (PC) slot structure takes into consideration. The advantage strong confinement within...
Abstract Silicon‐organic hybrid integrated devices show great potential in high‐speed optical interconnects and sensors. In this paper, a modulator based on an electro‐optic (EO) polymer (SEO125) infiltrated sub‐wavelength grating (SWG) waveguide ring resonator is presented. The core of the SWG consists periodically arranged silicon pillars along light propagation direction, which provides large mode volume overlap with EO polymer. optimized shows 36.2% duty cycle 0.7. 3‐dB modulation...
In this paper, we design a dielectric-to-plasmonic slot waveguide mode converter based on the hybrid silicon-gold taper. The effects of matching, effective index and metallic absorption loss conversion efficiency are studied. Consequently, taper-funnel coupler with an overall length 1.7um is designed to achieve very high 93.3% at 1550 nm. configuration limitations for not allowing 100% also investigated. Such high-efficiency can provide practical routes realize ultracompact integrated circuits.
Resonance behaviors of the fundamental resonance mode diabolo metal bar optical antennas are investigated by using finite-difference time-domain (FDTD) numerical simulations and a dipole oscillator model. It is found that as waist antenna reduced, energy absorption cross section near field enhancement at increase significantly. Also reduction width causes red-shift resonant wavelengths in spectra cross-section, scattering electric field. A model including self-inductance force used to fit...
In this paper, we experimentally demonstrate a highly sensitive on-chip photonic electromagnetic wave sensor operating at 14.1 GHz with 3 dB bandwidth of 4.84 GHz. The demonstrated has several important advantages over conventional electrical sensors, including high sensitivity, compact in size, and strong immunity to interference. is comprised bowtie antenna an asymmetric Mach–Zehnder interferometer (MZI). One arm the MZI electro-optic polymer infiltrated one-dimensional slot crystal...
High-rate roll-to-roll (R2R) tracker systems are utilized for large volume flexible electronic device manufacturing, and the current alignment mechanism between layers is mainly achieved by relying on passive techniques. In this paper, we present a machine vision based strategy that used to achieve precise registration stacking multilayers. Based strategy, demonstrate two-layer printing with accuracy better than 100 μm in web moving direction 200 lateral at rate of 5 m/min.
Abstract In atomic multi-level systems, adiabatic elimination (AE) is a method used to minimize complicity of the system by eliminating irrelevant and strongly coupled levels detuning them from one another. Such three-level system, for instance, can be mapped onto physically in form three-waveguide system. Actively coupling strength between respective waveguide modes allows modulating light propagate through device, as proposed here. The outer waveguides act an effective two-photonic-mode...
A mode transformer based on the quasi-vertical taper is designed to enable high coupling efficiency for interboard-level optical interconnects involving single-mode polymer waveguides and standard fibers. triangular region fabricated above waveguide adopted adiabatically transform from fiber into waveguide. The effects of geometrical parameters taper, including width, height, tip etc., are numerically investigated. Based this, a rib system designed, fabricated, characterized. Coupling losses...
The bowtie antenna is a topic of growing interest in recent years. In this letter, we design, fabricate, and characterize modified gold integrated on transparent silica substrate. designed with broad RF bandwidth to cover the X-band electromagnetic spectrum. We numerically investigate characteristics, specifically its resonant frequency enhancement factor. Our provides strong broadband electric field feed gap. Taking advantage low-k substrate, high factor can be achieved without unwanted...
We design, fabricate, and experimentally demonstrate a compact thermo-optic gate switch comprising 3.78 um-long coupled L0-type photonic crystalmicrocavities on silicon-on-insulator substrate. A nanohole is inserted in the center of each individual L0 crystalmicrocavity. Coupling between identical microcavities gives rise to bonding anti-bonding states molecules. The are numerically simulated verified with 6 nm-wide flat-bottom resonance its transmission spectrum, which enables wider...
Subwavelength grating metamaterial racetrack ring resonator (SGMRTR) increases the coupling strength between bus waveguide and thus better extinction ratio can be achieved. In this paper, we summarized our recent work on SGMRTRs. We show that with improved ratio, intrinsic detection limit of refractive index sensors pushed closer to theoretical limit. have also demonstrated first high-speed optical modulator based electro-optic polymer infiltrated subwavelength measured 3-dB bandwidth 41.4...
To obtain full-color tunable photonic materials, superparamagnetic nanoparticles with a particle diameter and highly charged surfaces were synthesized through modified solvothermal process. Compared polyelectrolyte-capped nanoparticles, citrate-capped are simple, cost-effective, suitable as building blocks of materials. The reflection spectra colloid under varing magnetic field covers broad wavelength range approximately 420–820 nm due to the assembly Fe3O4 nanoparticles. effect optical...
We investigate surface plasmon modes supported by flat-top silver nano-ridges. calculate the mode electromagnetic field distribution, dispersion curve, travel range, and figure-of-merit of nano-ridge mode. find that are quasi-TEM with longitudinal components three orders magnitude smaller than transverse components. The nature profiles reveals propagation free electron oscillations on top contributes mainly to tightly confined ridge also as width decreases, becomes more top. As increases,...
Reconfigurable true-time-delay lines, comprising of 2x2 thermo-optic polymer switches and rib waveguides are fabricated utilizing a combination roll-to-roll (R2R) compatible UV imprinting ink-jet printing, which promises high throughput low cost photonic devices.
Tightly confined plasmon waveguide modes supported by semicircular cross section top silver nanoridges are investigated in this paper. Mode field profiles, dispersion curves, propagation distances, confinement factors, and figure-of-merits of nanoridge mode calculated for different radii curvature at wavelengths. It is found that support tightly quasi-TEM modes. Semicircular has longer distance higher figure-of-merit than the cylindrical nanowire same radius curvature.
In this paper, we summarize the recent progress on silicon photonics modulators and sensors with an emphasize innovation in waveguide structure. We will introduce two types of waveguide, one-dimensional (1D) slot photonic crystal (SPCW) subwavelength grating (SWG) waveguide. The simple geometry 1D SPCW makes it more robust to fabrication imperfections helps reduce its propagation loss, while still maintaining benefit slow light. effective electro-optic (EO) coefficient increases 490 pm/V....
high-efficiency silicon strip waveguide to plasmonic slot converter based on the hybrid silicon-gold taper is proposed and optimized. Through investigating mode matching, effective index metallic absorption loss considerations, with an overall length of 1.7 μm having a very high conversion efficiency 93.3% at 1550nm achieved. Besides, configuration limitations for restricting this achieve 100 % are also studied in paper. Such will be essential component ultra-compact integrated circuits.
The detection and measurement of electromagnetic fields have attracted significant amounts attention in recent years. Traditional electronic field sensors use large active conductive probes which perturb the to be measured also make devices bulky. In order address these problems, integrated photonic been developed, an optical signal is modulated by RF collected a miniaturized antenna. this work, we design, fabricate characterize compact, broadband highly sensitive sensor based on...
Propagating two-dimensional plasmon modes guided along silver nanoridge waveguides with triangular and inverted cross sections are investigated in this paper. Mode field profiles, dispersion curves, propagation distances, figure-of-merits of the ridge calculated for various waveguide sections. It is found that section waveguide, if designed properly, can have longer distance higher figure-of-merit than flat-top same width. When triangle height high, mode approaches to small angle wedge mode....
Propagating two-dimensional plasmon polariton modes guided by elliptical cross section silver nanoridges are investigated in this paper. Mode field profiles, dispersion curves, propagation distances, and figure-of-merits of the calculated for various nanoridges. It is found that metal nanoridge, if designed properly, can support a tightly confined mode with longer distance higher figure-of-merit than flat-top nanoridge waveguide same width. The optimal obtained when becomes semicircular...
Electromagnetic (EM) wave detection over a large spectrum has recently attracted significant amount of attention. Traditional electronic EM sensors use metallic probes which distort the field to be measured and also have strict limitations on detectable RF bandwidth. To address these problems, integrated photonic been developed provide high sensitivity broad Previously we demonstrated compact, broadband, sensitive sensor, consisting an organic electro-optic (EO) polymer refilled silicon slot...