Scholars@Duke
Willie John Padilla

Scholarly Works - Conferences

Autonomous Agentic Systems for Metamaterial Design and Research

Conference International Conference on Metamaterials Photonic Crystals and Plasmonics · January 1, 2026 The evolution from large language models (LLMs) to agentic systems has created a new frontier of scientific discovery, enabling the automation of complex research tasks that have traditionally required human expertise. We present an autonomous agentic fram ... Cite

Solving Inverse Problems with Deep Learning

Conference 2025 International Applied Computational Electromagnetics Society Symposium Aces Orlando 2025 · January 1, 2025 Many electromagnetic design problems can be cast as an inverse problem. That is, one may specify a desired scattering state and seek to find the ideal configuration of an antenna, waveguide, power amplifier, and related constituent materials and geometry n ... Full text Cite

A Metamaterial Coherent Detector for mmWave Operation

Conference International Conference on Metamaterials Photonic Crystals and Plasmonics · January 1, 2025 Acoherent detector, that is both sensitive to phase and amplitude, has yet to be established at high frequencies. To address this gap, we experimentally demonstrate a frequency, phase, and power-sensitive metamaterial coherent detector (MCD) for operation ... Cite

A Large Language Model Agent for Autonomous Inverse Metamaterial Design

Conference International Conference on Metamaterials Photonic Crystals and Plasmonics · January 1, 2025 An agentic framework consists of large language models coordinating the completion of complex tasks and have recently shown novel results. We propose and demonstrate an agentic system capable of the inverse design of a material which achieves a desired spe ... Cite

Deep Inverse Design of Metamaterials and Metasurfaces

Conference IEEE Antennas and Propagation Society AP S International Symposium Digest · January 1, 2025 Metamaterials and metasurfaces - here termed artificial electromagnetic materials (AEMs) - offer unprecedented control over the scattering of electromagnetic waves. Often the design of AEMs is cast as a challenging inverse problem, where an electromagnetic ... Full text Cite

Large Language Models for Forward and Inverse Design of Metamaterials

Conference IEEE Antennas and Propagation Society AP S International Symposium Digest · January 1, 2025 Over the last several years deep learning - in particular deep neural networks (DNNs) - have been shown to be an effective approach for the design of electromagnetic metamaterials and metasurfaces and many novel results have been shown. More recently large ... Full text Cite

Comprehensive Overview of Deep Inverse Models in Metamaterials Design

Conference International Conference on Infrared Millimeter and Terahertz Waves Irmmw Thz · January 1, 2025 The design of electromagnetic metamaterials to achieve desired functionalities often presents a challenging inverse problem, where the required structural parameters are sought for a given electromagnetic response. Traditional computational electromagnetic ... Full text Cite

Characterization of Microwave Blackbody with Monostatic Measurement

Conference International Geoscience and Remote Sensing Symposium IGARSS · January 1, 2024 This paper describes a measurement method for characterizing the reflectivity of blackbodies used as calibration devices in spaceborne instruments. The fundamental measurement principle is based on the scattering matrix theory. A monostatic apparatus has b ... Full text Cite

Deep Learning for Novel Infrared, Millimeter wave, and Terahertz Metamaterials

Conference International Conference on Infrared Millimeter and Terahertz Waves Irmmw Thz · January 1, 2024 Electromagnetic metamaterials and metasurfaces possess a property termed electromagnetic similitude, permitting them to operate over a large swath of the electromagnetic spectrum from radio frequencies to visible with a simple scaling of the geometry. Addi ... Full text Cite

Informed Deep Learning in Metamaterials

Conference 2023 International Applied Computational Electromagnetics Society Symposium Aces Monterey 2023 · January 1, 2023 Deep neural networks have demonstrated capability to solve challenging forward and inverse problems in electromagnetic metamaterials. However, they often require large quantities of data to achieve a given level of accuracy, which poses a data bottleneck i ... Full text Cite

Multipolar Resonance Engineering Using Machine Learning

Conference International Conference on Metamaterials Photonic Crystals and Plasmonics · January 1, 2023 We developed machine learning models to predict the multipolar resonances and electric field distributions of all-dielectric meta-atoms. Machine learning method is also used for inverse designing meta-atoms based on the desired multipolar resonances. ... Cite

Normalization flows for designing metasurfaces

Conference International Conference on Metamaterials Photonic Crystals and Plasmonics · January 1, 2023 Training data are very expensive for metasurface designs using deep-learning based methods. To achieve data efficiency, we introduced normalization flows to inversely design metasurfaces through learning the probabilistic distribution of the data. To explo ... Cite

Mie Resonance-based Meta-atom Design with Machine Learning Method

Conference 2023 Conference on Lasers and Electro Optics CLEO 2023 · January 1, 2023 Forward prediction machine learning models were developed to predict the scattering behaviors and electromagnetic field of meta-atoms, while an inverse design model was built for reconstructing meta-atoms under the guidance of multipole expansion theory. ... Cite

Mie Resonance-based Meta-atom Design with Machine Learning Method

Conference CLEO Science and Innovations CLEO S and I 2023 · January 1, 2023 Forward prediction machine learning models were developed to predict the scattering behaviors and electromagnetic field of meta-atoms, while an inverse design model was built for reconstructing meta-atoms under the guidance of multipole expansion theory. ... Full text Cite

Planar Metamaterial Absorbers for Calibration of Microwave Radiometers for Atmospheric Remote Sensing

Conference International Geoscience and Remote Sensing Symposium IGARSS · January 1, 2022 In this work, we present metamaterial-based microwave absorbers fabricated on organic-based printed circuit boards as promising alternatives to traditional, bulky microwave absorbers for the calibration of microwave radiometers for atmospheric remote sensi ... Full text Cite

BLASCHKE PRODUCT NEURAL NETWORK (BPNN): A PHYSICS-INFUSED NEURAL NETWORK FOR PHASE RETRIEVAL OF MEROMORPHIC FUNCTIONS

Conference Iclr 2022 10th International Conference on Learning Representations · January 1, 2022 Numerous physical systems are described by ordinary or partial differential equations whose solutions are given by holomorphic or meromorphic functions in the complex domain. In many cases, only the magnitude of these functions are observed on various poin ... Cite

Deep Learning Metamaterials

Conference International Conference on Metamaterials Photonic Crystals and Plasmonics · January 1, 2022 We discuss the use and impact of deep learning on metamaterials and metasurfaces, including both forward and inverse design. We show inverse results on three benchmark datasets and discuss the future of this exciting field.. ... Cite

A Triple-Mode Mid-infrared Modulator for All-Surface Radiative Thermal Management

Conference 2021 Conference on Lasers and Electro Optics CLEO 2021 Proceedings · May 1, 2021 We demonstrate a mid-infrared modulator that can switch among reflectance, emittance, and transmittance by mechanical actuation. The triple-mode modulation allows heating/cooling for objects with all emissivity, thereby increase the versatility of radiativ ... Cite

A triple-mode mid-infrared modulator for all-surface radiative thermal management

Conference Optics Infobase Conference Papers · January 1, 2021 We demonstrate a mid-infrared modulator that can switch among reflectance, emittance, and transmittance by mechanical actuation. The triple-mode modulation allows heating/cooling for objects with all emissivity, thereby increase the versatility of radiativ ... Cite

Strain mapping with THz metamaterial composites

Conference Optics Infobase Conference Papers · January 1, 2021 Terahertz metamaterials that exhibit broad spectral resonances are used to probe local strain fields. By choosing specific frequencies and polarizations for measurement, it is possible to obtain unique spatial maps for different strain states. ... Cite

Benchmarking Data-driven Surrogate Simulators for Artificial Electromagnetic Materials

Conference Advances in Neural Information Processing Systems · January 1, 2021 Artificial electromagnetic materials (AEMs), including metamaterials, derive their electromagnetic properties from geometry rather than chemistry. With the appropriate geometric design, AEMs have achieved exotic properties not realizable with conventional ... Cite

Strain Mapping with THz Metamaterial Composites

Conference International Conference on Infrared Millimeter and Terahertz Waves Irmmw Thz · November 8, 2020 Terahertz metamaterials with strain-sensitive junctions are introduced to identify structurally compromised regions of composite materials. Spatially mapping the local polarimetric metamaterial response visualizes and records regions of stress extrema expe ... Full text Cite

Machine Learning for Exotic Metasurfaces

Conference International Conference on Infrared Millimeter and Terahertz Waves Irmmw Thz · November 8, 2020 We introduce one deep neural network and an inverse method called neural adjoint method to solve high-dimensional metasurface inverse design problem. We find that, even when the solution is outside the geometry space, the neural adjoint method is still abl ... Full text Cite

Benchmarking deep inverse models over time, and the neural-adjoint method

Conference Advances in Neural Information Processing Systems · January 1, 2020 We consider the task of solving generic inverse problems, where one wishes to determine the hidden parameters of a natural system that will give rise to a particular set of measurements. Recently many new approaches based upon deep learning have arisen, ge ... Cite

Strain sensing with THz metamaterial composites

Conference Optics Infobase Conference Papers · January 1, 2020 Terahertz metamaterials with strain-sensitive junctions are introduced to identify structurally compromised regions of composite materials. Spatially mapping the local polarimetric metamaterial response visualizes and records regions of stress extrema expe ... Cite

Ultrathin tunable terahertz absorbers based on electrostatically actuated metamaterial

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2019 High performance tunable absorbers for terahertz (THz) frequencies will be crucial in advancing applications such as single-pixel imaging and spectroscopy. Metamaterials provide many new possibilities for manipulating electromagnetic waves at the subwavele ... Full text Cite

All-dielectric metasurfaces for terahertz science and technology

Conference International Conference on Metamaterials Photonic Crystals and Plasmonics · January 1, 2019 All-dielectric metasurfaces are useful for investigation of new devices for terahertz science and technology. Scattering effects ranging from high absorption and Huygens' reflect arrays to bound-states-in-the-continuum (BIC) suggest their use for applicati ... Cite

Temporal coupled mode theory for all-dielectric perfect absorbers

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2018 Mechanism of the two-port one input mirror-symmetric all-dielectric disk array perfect absorbers is studied by temporal coupled mode theory. The perfect absorption is resulted from the degenerate critical coupling of EH111 and HE111 m ... Full text Cite

All-dielectric metasurfaces for THz imaging and sensing

Conference Optics Infobase Conference Papers · January 1, 2018 We demonstrate an approach to terahertz imaging and sensing using all-dielectric metasurface absorbers. THz waves are absorbed by the metasurface, converted to heat, and detected by an infrared camera. ... Full text Cite

Fast tunable terahertz absorber based on a MEMS-driven metamaterial

Conference 2017 Conference on Lasers and Electro Optics CLEO 2017 Proceedings · October 25, 2017 We present an experimental study of ultra-Thin tunable THz absorbers based on MEMSdriven metamaterials. Using the high mechanical sensitivity of thin subwavelength metamaterial absorbers, we proposed a paradigm to combine meta-Atoms and suspended flat memb ... Full text Cite

Fast tunable terahertz absorber based on a MEMS-driven metamaterial

Conference Optics Infobase Conference Papers · January 1, 2017 We present an experimental study of ultra-thin tunable THz absorbers based on MEMSdriven metamaterials. Using the high mechanical sensitivity of thin subwavelength metamaterial absorbers, we proposed a paradigm to combine meta-atoms and suspended flat memb ... Full text Cite

Frequency division multiplexing THz light field imaging

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2017 We present a single pixel frequency division multiplexing imaging system with two metamaterial spatial light modulators (SLMs) for THz light field imaging. One SLM is used for slicing/modulating the 4D light field from various sub-apertures, while the seco ... Full text Cite

Mimicking liquid crystals with metamaterials

Conference 2016 Conference on Lasers and Electro Optics CLEO 2016 · December 16, 2016 We propose and demonstrate Meta Liquid Crystals (MLCs), a novel form of tunable 3D metamaterials. MLCs mimic the response of liquid crystals but use meta-atoms instead of molecular mesogens, enabling richer variety of electromagnetic responses. ... Full text Cite

Design and fabrication of a multispectral infrared metamaterial detector

Conference 2016 Conference on Lasers and Electro Optics CLEO 2016 · December 16, 2016 Infrared imaging systems require new technologies at the pixel level to provide enhanced spectral sensitivity with similar function to cones and rods in the human retina. A multicolor imaging system can be accomplished with the aid of metamaterials to spec ... Full text Cite

Electronic and thermally tunable infrared metamaterial absorbers

Conference Proceedings of SPIE the International Society for Optical Engineering · January 1, 2016 In this paper, we report a computational and experimental study using tunable infrared (IR) metamaterial absorbers (MMAs) to demonstrate frequency tunable (7%) and amplitude modulation (61%) designs. The dynamic tuning of each structure was achieved throug ... Full text Cite

Design and Fabrication of a Multispectral Infrared Metamaterial Detector

Conference Optics Infobase Conference Papers · January 1, 2016 Infrared imaging systems require new technologies at the pixel level to provide enhanced spectral sensitivity with similar function to cones and rods in the human retina. A multicolor imaging system can be accomplished with the aid of metamaterials to spec ... Cite

Mimicking Liquid Crystals with Metamaterials

Conference Optics Infobase Conference Papers · January 1, 2016 We propose and demonstrate Meta Liquid Crystals (MLCs), a novel form of tunable 3D metamaterials. MLCs mimic the response of liquid crystals but use meta-atoms instead of molecular mesogens, enabling richer variety of electromagnetic responses. ... Cite

Quadrature & frequency diverse terahertz imaging with metamaterials

Conference Irmmw Thz 2015 40th International Conference on Infrared Millimeter and Terahertz Waves · November 11, 2015 Compressive sensing is an exciting approach to imaging and promises to make significant advance in the terahertz regime. However, compressive imaging is commonly implemented is such that acquisition proceeds in a serial manner, thus leading to unrealistic ... Full text Cite

Digital metamaterials for single pixel imaging in the Far Infrared

Conference 2015 1st Ursi Atlantic Radio Science Conference Ursi at Rasc 2015 · October 21, 2015 Single pixel cameras are useful imaging devices where it is difficult or infeasible to fashion focal plan arrays. For example in the Far Infrared (FIR) - and longer wavelength ranges - it is difficult to perform imaging by conventional detector arrays, owi ... Full text Cite

Taming blackbody radiation with MEMS metamaterials

Conference International Conference on Optical MEMS and Nanophotonics · October 2, 2015 MEMS based metamaterials are an ideal architecture to provide dynamic electromagnetic properties in the infrared range of the electromagnetic spectrum. We detail several realizations of infrared MEMS metamaterials and discuss potential applications. ... Full text Cite

Artificial electrochromic & thermochromic infrared metamaterials

Conference International Conference on Optical MEMS and Nanophotonics · October 2, 2015 Controlling the emission of surface energy lies at the heart of many energy harvesting applications. However, the emission is strongly tied to the temperature of the object and there is little ability for modification. In this paper, we describe the design ... Full text Cite

Sparse imaging with metamaterials at terahertz frequencies

Conference Optics Infobase Conference Papers · January 1, 2014 Metamaterials are composite structures which permit unprecedented control over light matter interactions. Here we show use of metamaterials as spatial light modulators permitting single pixel compressive imaging at terahertz frequencies. © 2014 OSA. ... Full text Cite

THz imaging with metamaterials

Conference International Conference on Infrared Millimeter and Terahertz Waves Irmmw Thz · December 1, 2013 Metamaterials have demonstrated the ability to efficiently alter electromagnetic radiation in the terahertz range. The use of semiconductors as substrates, or as part of the metamaterial itself, has enabled real-time dynamic control providing spatial and f ... Full text Cite

Metamaterial-based imaging for potential security applications

Conference Proceedings of SPIE the International Society for Optical Engineering · June 3, 2013 Featured Work In this paper, we present two different types of THz spatial light modulators (SLMs) that use dynamic metamaterials (MMs) to enable multiplex imaging. One imaging setup consists of a doped semiconducting MM as the SLM, with multi-color super-pixels compose ... Full text Cite

Taming the blackbody with metamaterials for energy harvesting applications

Conference Laser Science Ls 2012 · January 1, 2012 The metamaterial perfect absorber has been shown across the electromagnetic spectrum. These engineered, near unity, absorbers yield performance flexibility and here we demonstrate their use for energy harvesting devices-in particular for thermophotovoltaic ... Full text Cite

Blackbody engineering with metamaterials

Conference 34th International Conference on Infrared Millimeter and Terahertz Waves Irmmw Thz 2009 · December 31, 2009 We demonstrate metamaterial absorbers which control the emissivity spectrum of a body at a particular temperature over a bandwidth of 50%, and may be applied as coatings to materials to control their blackbody emission spectra. © 2009 IEEE. ... Full text Cite

Metamaterial devices for the terahertz gap

Conference APMC 2009 Asia Pacific Microwave Conference 2009 · December 1, 2009 Metamaterials are engineered materials which offer superb electromagnetic performance over naturally occurring materials, and offer great potential to construct novel devices operating in the terahertz frequency regime. Here we experimentally demonstrate m ... Full text Cite

A broadband terahertz metamaterial electrical modulator

Conference Optics Infobase Conference Papers · December 1, 2009 We demonstrate hybrid metamaterial devices that are able to electrically switch their resonances therefore the terahertz transmission properties at room temperature. The interrelated amplitude switching and phase shifting allow for fast broadband external ... Cite

Terahertz metamaterials

Conference Proceedings of SPIE the International Society for Optical Engineering · June 16, 2009 In this paper we present our recent developments in terahertz (THz) metamaterials and devices. Planar THz metamaterials and their complementary structures fabricated on suitable substrates have shown electric resonant response, which causes the band-pass o ... Full text Cite

Dynamic Metamaterials at Terahertz Frequencies

Conference · January 1, 2009 Metamaterials fabricated for operation at terahertz frequencies are presented. Optical excitation enables control of the metamaterial resonance amplitude and frequency. ... Full text Cite

Metamaterials for the terahertz gap

Conference 33rd International Conference on Infrared and Millimeter Waves and the 16th International Conference on Terahertz Electronics 2008 Irmmw Thz 2008 · December 31, 2008 Metamaterials are engineered materials which offer superb electromagnetic performance over naturally occurring materials, and offer great potential to construct novel devices operating in the terahertz frequency regime. Here we experimentally demonstrate m ... Full text Cite

Active THz metamaterials

Conference 33rd International Conference on Infrared and Millimeter Waves and the 16th International Conference on Terahertz Electronics 2008 Irmmw Thz 2008 · December 31, 2008 In this work, we demonstrate THz metamaterials exhibiting either amplitude control, via carrier injection or depletion in the active semiconductor substrate or frequency control, via photoexcitation of carriers into active semiconducting materials incorpor ... Full text Cite

Frequency tunable terahertz metamaterials

Conference Conference on Quantum Electronics and Laser Science QELS Technical Digest Series · September 15, 2008 We present a hybrid metamaterial semiconductor device capable of 20% tunability of the center resonance frequency via photoexcitation of the semiconductor regions, thereby addressing the metamaterials drawback of narrow bandwidth operation. ©2008 Optical S ... Full text Cite

Opto-electronic control of terahertz metamaterials

Conference Proceedings of SPIE the International Society for Optical Engineering · March 31, 2008 We demonstrate external control of metamaterials operating at terahertz frequencies. Through photodoping of semiconducting substrates, used to support metamaterial arrays, we show ultrafast switching times. New metamaterial "grids" are presented, which may ... Full text Cite

Filling the electromagnetic void - metamaterial devices for the THz gap

Conference PROCEEDINGS OF THE 2008 INTERNATIONAL WORKSHOP ON METAMATERIALS · January 1, 2008 Link to item Cite

MEMS and metamaterials: A perfect marriage at terahertz frequencies

Conference Technical Digest Solid State Sensors Actuators and Microsystems Workshop · January 1, 2008 This paper reports our recent progress on creating active structures and devices to enhance the ability to manipulate and detect far-infrared, or terahertz (THz), radiation by combining electromagnetic metamaterials with MEMS technologies. We have designed ... Full text Cite

External modulation of terahertz quantum cascade lasers using metamaterials

Conference Optics Infobase Conference Papers · January 1, 2008 We use active metamaterials as external modulators for a 2.4 THz Quantum Cascade Laser. We present initial optical modulation results with the goal of designing an electricallydriven modulator. © 2008 Optical Society of America. ... Full text Cite

Active terahertz metamaterial devices

Conference Optics Infobase Conference Papers · January 1, 2008 We demonstrate THz metamaterials exhibiting either amplitude control, via carrier injection or depletion in the active semiconductor substrate or frequency control, via photoexcitation of carriers into active semiconducting materials incorporated into the ... Full text Cite

Terahertz switch/modulator based on metamaterials

Conference Conference on Lasers and Electro Optics 2007 CLEO 2007 · December 1, 2007 Real-time control of terahertz metamaterial has been experimentally demonstrated through an electrical approach. The THz switching and modulation capabilities are realized by the external voltage bias to a planar hybrid metamaterial-semiconductor structure ... Full text Cite

Properties of novel terahertz electric metamaterials

Conference Conference on Lasers and Electro Optics 2007 CLEO 2007 · December 1, 2007 Planar electric metamaterials are studied with terahertz time-domain spectroscopy in transmission and reflection. Energy absorption of 5-20% due to Ohmic losses within the metal patterning is observed at resonant frequencies. Finite-element simulations ver ... Full text Cite

Terahertz metamaterials for active, tunable, and dynamical devices

Conference Proceedings of SPIE the International Society for Optical Engineering · November 19, 2007 Tunable electromagnetic metamaterials can be designed through the incorporation of semiconducting materials. We present theory, simulation, and experimental results of metamaterials operating at terahertz frequencies. Specific emphasis is placed on the dem ... Full text Cite

Metamaterials and their THz applications

Conference Irmmw Thz2007 Conference Digest of the Joint 32nd International Conference on Infrared and Millimetre Waves and 15th International Conference on Terahertz Electronics · January 1, 2007 We present experimental results of metamaterials operating at terahertz and mm-wave frequencies. Metamaterials consist of a single layer of 200nm thick gold on a doped or undoped semiconducting substrate. By optical and electronic doping of supporting semi ... Full text Cite

Metamaterials for Novel Terahertz and Millimeter Wave Devices

Conference 2007 INTERNATIONAL SYMPOSIUM ON SIGNALS, SYSTEMS AND ELECTRONICS, VOLS 1 AND 2 · January 1, 2007 Link to item Cite

Active metamaterials: a novel approach to manipulate terahertz waves

Conference 2007 JOINT 32ND INTERNATIONAL CONFERENCE ON INFRARED AND MILLIMETER WAVES AND 15TH INTERNATIONAL CONFERENCE ON TERAHERTZ ELECTRONICS, VOLS 1 AND 2 · January 1, 2007 Link to item Cite

Novel terahertz electric metamaterials

Conference Optics Infobase Conference Papers · January 1, 2007 Planar electric metamaterials and their inverse structures are demonstrated to show complementary electrical resonant behavior in terahertz time-domain spectroscopy. Simulations and measured data agree well and illustrate potential applicability of these m ... Full text Cite

Electrical control of terahertz metamaterials

Conference Optics Infobase Conference Papers · January 1, 2007 The metamaterials resonant response significantly enhances THz-wave/material interaction. We demonstrated real-time switchable THz metamaterial via external voltage bias to modify the metamaterial capacitive elements, thereby achieved effective control and ... Full text Cite

Split-ring resonator enhanced terahertz antenna

Conference Optics Infobase Conference Papers · January 1, 2007 An electric split-ring resonator is used to enhance the performance of a photoconductive dipolar antenna based terahertz transmitter. Enhancement is observed near and limited to the resonant frequency of the electric split-ring resonator. © 2007 Optical So ... Full text Cite

Dynamically frequency tunable terahertz metamaterials

Conference Optics Infobase Conference Papers · January 1, 2007 We present novel terahertz metamaterials that feature frequency tunable resonant responses. Tunability is achieved by selective patterning of semiconductor regions within split-ring resonator structures. Simulations reveal non-linear frequency tuning as a ... Full text Cite

Dynamical metamaterials at terahertz frequencies

Conference Conference Proceedings Lasers and Electro Optics Society Annual Meeting LEOS · January 1, 2006 Utilizing terahertz time domain spectroscopy, we characterized the electromagnetic response of planar Split Ring Resonators fabricated on GaAs. Optical excitation is sufficient to turn off the electric resonance demonstrating the potential of SRR terahertz ... Full text Cite

Novel electrically resonant terahertz metamaterials

Conference Optics Infobase Conference Papers · January 1, 2006 We present new designs for metamaterials that exhibit a tailored resonant electrical response, investigated with THz time domain spectroscopy. These electric metamaterials will significantly ease the burden of construction for future negative index metamat ... Full text Cite

Ferromagnetic resonance in double perovskite Ba2FeMoO6

Conference Journal of Magnetism and Magnetic Materials · January 1, 2003 In this work the study of the ferromagnetic resonance and of the electrical conductivity in the perovskite sample, Ba2FeMoO6, is presented. Double perovskite has been manufactured by conventional ceramic method sintering in an inert g ... Full text Cite

Fabrication and characterization of THz plasmonic filter

Conference Proceedings of the IEEE Conference on Nanotechnology · January 1, 2002 Terahertz imaging systems have applications for explosives detection, aircraft guidance and landing in zero-visibility weather condition, as well as terrestrial and astronomical remote sensing. These critical applications need a variety of optical elements ... Full text Cite

Left-handed metamaterials

Conference PHOTONIC CRYSTALS AND LIGHT LOCALIZATION IN THE 21ST CENTURY · January 1, 2001 Link to item Cite