Come view the posters, enjoy light refreshments, ask questions, and network with colleagues in your field. One can consider the hyperbolic metamaterial as a polaritonic crystal where the coupled states of light and matter give rise to a larger bulk density of electromagnetic states 21, 22. Developed by active researchers and authors of a number of fdtd methodologies. A powerful timedomain fdtd spice simulator is implemented and applied to the broadband analysis of metamaterials integrated with active and tunable circuit elements. Hyperbolic metamaterials enable nanoscale fingerprinting.
Cummer,2 and yun jing1, 1department of mechanical and aerospace engineering, north carolina state university, raleigh, north carolina 27695, usa 2department of electrical and computer engineering, duke university, durham, north carolina 27708, usa received 28. Special materials include frequency dependent models, anisotropic and ferrite materials, and computational extensions to the fdtd method such as subcellular thin wires and timedependent switches. Numerical fdtd simulation 33,34 has also been applied to. Metamaterial is a double negative material where the effective permeability and permittivity are negative. Our primary focus is on the basic physics of the light transmission and what parameters are critical to light transmission optimization and suppression, but we also have interest in studying radiation pressure and electromagnetic momentum transfer in metamaterials and bowtie antennas. Integrations with popular eda and optical design tools, python, and other. A read is counted each time someone views a publication summary such as the title, abstract, and list of authors, clicks on a figure, or views or downloads the fulltext. As in this code we see that there is some sudden frequency where it can only transmit signal, so that frequency where the both mue and epsilons are negative. Since it is a timedomain method, fdtd solutions can cover a wide. This means that additional featuresmodifications are easy to implement, making it suitable for. Mar, 2012 metamaterial is a double negative material where the effective permeability and permittivity are negative. Current approaches to control this interaction such as optical cavities, photonic crystals, and metamaterials either rely on frequency resonance mechanisms which limit the bandwidth or suffer from poor lightcoupling.
Hyperbolic metamaterials can support unique bulk modes, tunable surface plasmon polaritons, and surface hyperbolic states dyakonov plasmons that can be. Optical simulation and optimization of light extraction. May 16, 2017 lightmatter interaction lies at the heart of several fundamental phenomena and technological applications ranging from photosynthesis to lasers. Hyperbolic metamaterial devices for wavefront manipulation yin. Fdtd finitedifference timedomain if playback doesnt begin shortly, try. Electromagnetic metamaterial simulations using a gpu. We use lumericals fdtd to solve maxwells equations for light transmission through arrays of subwavelength openings of various shapes. May 18, 2016 a graphenebased hyperbolic metamaterial has also been proposed for perfect absorption at terahertz frequencies 25. Using remcoms xfdtd software, simulations of devices containing these special materials may be performed. Metamaterial 1d simulation using fdtd method file exchange. Modeling of metamaterial structures using an extended finite. Manipulating light polarizations with a hyperbolic. So if we hit any gaussian wave on the surface of dng material then some part is reflected and some are transmitted. Hmms, showing, once again, the predicted pe far exceeding the observed values.
Wilson national aeronautics and space administration glenn research center cleveland, ohio 445 summary remcoms xfdtd software was used to model the. Github saulwigginfdtdsimulationsofametamateriallens. Modeling of metamaterial structures using an extended. To verify the model, some simple cases are simulated with results in both time. Hyperbolic metamaterials can support unique bulk modes, tunable surface plasmon polaritons, and surface hyperbolic states dyakonov plasmons that can be used for a variety of applications. Osa structural secondorder nonlinearity in plasmonic. Large spontaneous emission rate enhancement in grating. Metamaterials, metadevices, and metasystems 2016, conference. Although hmms are designed by interlocking low loss dielectric materials and highly reflective noble metals, the strong absorption of light is realized via the indefinite dispersion of such metastructures.
Finitedifference timedomain simulations of metamaterials a dissertation presented by zhengwei hao to the electrical and computer engineering department in partial fulfillment of the requirements for the degree of doctor of philosophy in the field of electrical engineering northeastern university boston, massachusetts december, 2012. Pwe calculations are made within the first brillouin zone only. Here, a class of materials, transferrable hyperbolic metamaterial particles thmmp. Hyperbolic metamaterials are artificially made structures that can be formed by depositing alternating thin layers of a conductor such as silver or graphene onto a substrate. While all the above media have specific domains of application, hyperbolic metamaterials are a multifunctional platform to realize waveguiding, imaging, sensing, quantum and thermal engineering beyond conventional devices 18. A hyperbolic metamaterial with a simultaneous type itype ii behaviour in the visible range. Shalaev,1 and evgenii narimanov1, 1school of electrical and computer engineering and bi rck nanotechnology center, purdue university, west lafayette, indiana 47907, usa. Scattered field, transmitted field, diffracted field are all exist, which demand more advanced simulation tools for highly accurate results. Fdtd simulation software with omnisim part of our stateoftheart fdtd and fetd timedomain toolkit. I attahed my fdtd file to check with you some stuff. As in this code we see that there is some sudden frequency where it can only transmit signal, so that frequency where the both mue and epsilons are. Nonlinear processes are at the core of many optical technologies whose further development require optimized materials suitable for nanoscale integration.
It is based on the finitedifference timedomain fdtd method, which is one of the most popular approaches for solving maxwells equations of electrodynamics. Here, we demonstrate the large spontaneous emission rate enhancement of an organic dye placed in a grating coupled hyperbolic metamaterial gchmm. A twodimensional structure, based on, was simulated using the 2d fetd engine and the complex coefficients of reflection and transmission r and t were measured. This practical resource comes complete with sample fdtd scripts to help you pave the way to new metamaterial applications and advances in antenna, microwave, and optics engineering. Fabryperot resonance cavity and hyperbolic metamaterials were numerically simulated and theoretically investigated. How to simulate layered hyperbolic metamaterials lumerical. These anisotropic materials may exhibit properties such as strong enhancement of spontaneous emission, diverging density of states, negative. Using the finite difference time domain fdtd simulation technique, the absorber was found to exhibit high absorption in the visible and. Schurign,y department of ece, duke university, box 90291, durham, nc 27708, u.
Applications of hyperbolic metamaterial substrates yu guo, ward newman, cristian l. Hyperbolic metamaterial nanostructures to tune chargetransfer dynamics conference presentation paper 99184 authors. Fdtd includes a magnetic and electric lorentz medium. Electromagnetic metamaterials are artificially engineered materials that are designed to interact and control. Negative refraction from a bulk metamaterial simulated in fdtd lumerical inc. Remcoms xfdtd software performs em simulations of devices containing metamaterials with unusual or frequency dependent properties. Metamaterials are nanoengineered media with designed properties beyond those available in nature with applications in all aspects of materials science. To verify the model, some simple cases are simulated with. Design of hyperbolic metamaterialbased absorber comprised of ti. A hyperbolic metamaterial with a simultaneous type itype. Optiwave has been successfully developing fdtd software for over a decade, and would like to show appreciation to the photonics community by distributing its 32bit fdtd product as freeware.
Hyperbolic metamaterials realized with twodimensional. First, the fdtdspice modeling theory is studied and details of interprocess communication and hybridization of the two techniques are discussed. We develop an effectivemedium description of the underlying physics, compare its. Issues of incommensurate spatial periods and interpolation of irregularly spaced data are discussed. The futures of transformations and metamaterials sciencedirect. Although hmms are designed by interlocking low loss dielectric materials and. The commercially available lumerical fdtd software was used for this. In particular, metamaterials have shown promise for next generation optical materials with electromagnetic responses that cannot be obtained from conventional media.
Despite its simplicity, this approach provides an accurate and e. Sign up no description, website, or topics provided. A powerful timedomain fdtdspice simulator is implemented and applied to the broadband analysis of metamaterials integrated with active and tunable circuit elements. The omnisim and crystalwave frameworks includes a highly efficient fdtd finite difference time domain engine to simulate the propagation of light through your designs. Here we demonstrate the emergence of a strong bulk secondorder nonlinear response in a plasmonic nanorod composite comprised of centrosymmetric materials. Lightmatter interaction lies at the heart of several fundamental phenomena and technological applications ranging from photosynthesis to lasers. A twodimensional 2d silver diffraction grating coupled with an agal 2 o 3 hmm shows 18fold spontaneous emission decay rate enhancement of dye molecules with respect to the same hmm without grating.
Twodimensional simulation of lefthanded metamaterial. Lumericals tools have been designed to tackle the most challenging photonic design problems across fields including integrated optics, metamaterials, cmos imaging, and more. This repo will contain the scripts in matlab using fdtd to calculate the electric field generated by the metamaterial lens done during my phd saulwiggin fdtd simulationsofa metamaterial lens. T1 electromagnetic metamaterial simulations using a gpuaccelerated fdtd method.
Current approaches to control this interaction such as optical cavities, photonic crystals, and metamaterials either rely on frequency resonance mechanisms which limit the bandwidth or suffer from poor lightcoupling issues. Optical absorption of hyperbolic metamaterial with. And now, modeling their unique characteristics and behaviors in electromagnetic systems just got easier. Lumericals tools enable the design of photonic components, circuits, and systems. Manipulating light polarizations with a hyperbolic metamaterial waveguide hua zhu,1 xiang yin,1 lin chen,1,zhongshu zhu,1 and xun li2 1wuhan national laboratory for optoelectronics, huazhong university of science and technology, wuhan 430074, china. Reinert ohio aerospace institute brook park, ohio 445 jeffrey d. Enhancement of spontaneous emission induced by all. Manipulating electromagnetic em waves with controllable amplitude, phase, and polarization is always the theme in photonics research. Enhanced spontaneous emission inside hyperbolic metamaterials. Optical absorption of hyperbolic metamaterial with stochastic surfaces jingjing liu,1 gururaj v. A graphenebased hyperbolic metamaterial has also been proposed for perfect absorption at terahertz frequencies 25. This figure is generated using a timedomain fdtd simulation 29 run until it. Twodimensional simulation of lefthanded metamaterial flat lens using remcom xfdtd jason m.
Enhancement of spontaneous emission induced by alldielectric hyperbolic metamaterial at quasidirac points. Yee, born 1934 is a numerical analysis technique used for modeling computational electrodynamics finding approximate solutions to the associated system of differential equations. Finitedifference timedomain fdtd method was employed to numerically simulate the light extraction efficiency of various 3d oled structures. Manipulating light polarizations with a hyperbolic metamaterial waveguide hua zhu,1 xiang yin,1 lin chen,1,zhongshu zhu,1 and xun li2 1wuhan national laboratory for optoelectronics, huazhong university of science and technology, wuhan 430074, china 2department of electrical and computer engineering, mcmaster university, 1280 main street. Optical absorption of hyperbolic metamaterial with stochastic. Negative refraction from a bulk metamaterial simulated in fdtd. Highperformance photonic simulation software lumerical. Oxford, uk, september 4, 2008 vector fields, a part of cobham plc, has released practical design tools to help rf designers exploit the properties of metamaterials, as part of its work for. Finitedifference timedomain simulations of metamaterials. Finitedifference timedomain or yees method named after the chinese american applied mathematician kane s.
Numerous materials exist that have unusual or frequency dependent properties. Lumericals device suite of componentlevel simulation products use multiphysicsstyle simulation workflows to model optical, electrical and thermal effects at the physical level. As the leading photonic simulator deployed for these applications, fdtd offers all the capabilities you need to get accurate answers quickly and easily in these. Metamaterials and plasmonics remain two of the most active areas of academic research in photonics, owing to the interesting optical effects that can be generated in these materials. With photonic crystal structures, a maximum of 30% extraction efficiency is achieved. In particular, a twodimensional 2d mtm fdtd algorithm is developed for this purpose and the. Hyperbolic metamaterials can enhance spontaneous emission. N2 metamaterials composed of artificial subwavelength structures exhibit extraordinary properties that cannot be found in nature. Gmes is a free finitedifference timedomain fdtd simulation python package developed at gist to model photonic devices.
They are fabricated by the sequential deposition of tio 2 and ag layers. I am an engineer with 2 years of professional experience and a masters degree in chemical engineering. Fdtd simulation software with omnisim part of our stateoftheart fdtd and fetd timedomain toolkit the omnisim and crystalwave frameworks includes a highly efficient fdtd finite difference time domain engine to simulate the propagation of light through your designs. Shalaev,1 and evgenii narimanov1, 1school of electrical and computer engineering and bi rck nanotechnology center, purdue university, west lafayette, indiana 47907, usa 2department of materials. Metamaterials include such items as negative index materials, electronic band gap structures and frequency selective surfaces. From these, the complex effective refractive index of the metamaterial layer was retrieved using the formula. Optical grating simulations using optifdtd optiwave. What thoughtprovoking systems might we make with hyperbolic systems. Jeffrey brodie product design and development engineer.
Hyperbolic metamaterial devices for wavefront manipulation. Includes frequency selective surfaces, ferrite materials and more. The unit cell of twodimensional metamaterial tl structure a. Its features include simulation in 1d, 2d, and 3d cartesian coordinates, distributed memory parallelism on any system supporting the mpi standard, portable to any unixlike system, variuos dispersive. Cummer,2 and yun jing1, 1department of mechanical and aerospace engineering, north carolina state university, raleigh, north carolina 27695, usa. Some of the applications of hyperbolic metamaterials include negative refraction 23, 24, subdiffraction imaging 3, 25, sub. This kind of hmm in pc possessing diraclike or semidirac cone exhibits hyperbolic dispersion around these special degeneracy points. You get indepth coverage of stateoftheart fdtd modeling techniques and applications for electromagnetic. My career has allowed me to lead nanomaterial development for novel applications. The hyperbolic metastructures comprise a 12 alternating layers of silver ag and titanium dioxide tio 2 thin films and b 16 alternating layers of gold au and aluminum dioxide al 2 o 3 thin films.
Plasmonics, engineered photonic materials and metamaterials. This repo will contain the scripts in matlab using fdtd to calculate the electric field generated by the metamaterial lens done during my phd saulwigginfdtdsimulationsof. Fdtdspice for characterizing metamaterials integrated. Together with our partners we offer a complete solution. We have used mpb software for all pwe calculations and meep for fdtd calculations. Using remcoms xfdtd software, simulations of devices containing these special materials may be performed metamaterials include such items as negative index materials, electronic band gap structures and frequency selective surfaces. Enhancement of spontaneous emission induced by alldielectric. This onestop resource gives engineers powerful finitedifference timedomain fdtd techniques for modeling metamaterials, complete with applications and timesaving sample fdtd scripts.
Bulk metamaterials based on magnetic and electric lorentz. At mesh time the software will base the target mesh size for this material on the background material which defaults. Numerical solutions to maxwells equations in 3d, 2d, or 1d. Efficient and accurate dispersive mtm fdtd algorithms have been developed and used to investigate electromagnetic wave interaction with mtms. Angora is a free, opensource software package that computes numerical solutions to electromagnetic radiation and scattering problems. Indium tin oxide nanowires as hyperbolic metamaterials for. Enter your mobile number or email address below and well send you a link to download the free kindle app. Summary a method is described for applying fdtd simulation to electromagnetic metamaterial slabs with o. Indium tin oxide nanowires as hyperbolic metamaterials for nearfield radiative heat transfer juiyung chang, soumyadipta basu,a and liping wangb school for engineering of matter, transport, and energy, arizona state university, tempe, arizona 85287. Fdtdspice for characterizing metamaterials integrated with. In this paper, we present grating coupledhyperbolic metamaterials.
Optical grating simulations using optifdtd optical gratings are basically periodic layouts that may contain chirp or apodization. First, the fdtd spice modeling theory is studied and details of interprocess communication and hybridization of the two techniques are discussed. One of their special abilities is supporting the propagation of a very narrow light beam. Metamaterials and fdtd based numerical modeling studies. The idea was to simulate a lens based on transformation optics which would have the same ray propagation characteristics as a cooke triplet and therefore in theory the same improved. Fdtdsimulationsofametamateriallens this repo contains the matlab scripts for finite difference time domain simulations for a metamaterial cooke triplet.
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