Search Results - "Guild, Matthew D."

Plasmonic-type acoustic cloak made of a bilaminate shell by Guild, Matthew D., Haberman, Michael R., Alù, Andrea

“…Alternating isotropic layers have been widely used in the design of acoustic cloaks to achieve the necessary anisotropy required by coordinate-transformation…”
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Plasmonic cloaking and scattering cancelation for electromagnetic and acoustic waves by Guild, Matthew D., Haberman, Michael R., Alù, Andrea

“…One popular approach to cloaking objects from electromagnetic waves at moderately long wavelengths is the scattering cancelation technique. This mechanism is…”
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Enhanced inertia from lossy effective fluids using multi-scale sonic crystals by Guild, Matthew D., Garcia-Chocano, Victor M., Kan, Weiwei, Sánchez-Dehesa, José

“…In this work, a recent theoretically predicted phenomenon of enhanced permittivity with electromagnetic waves using lossy materials is investigated for the…”
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Generation of topologically diverse acoustic vortex beams using a compact metamaterial aperture by Naify, Christina J., Rohde, Charles A., Martin, Theodore P., Nicholas, Michael, Guild, Matthew D., Orris, Gregory J.

“…Here, we present a class of metamaterial-based acoustic vortex generators which are both geometrically simple and broadly tunable. The aperture overcomes the…”
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Sound speed in water-saturated glass beads as a function of frequency and porosity by Argo, Theodore F., Guild, Matthew D., Wilson, Preston S., Schröter, Matthias, Radin, Charles, Swinney, Harry L.

“…Sound propagation in water-saturated granular sediments is known to depend on the sediment porosity, but few data in the literature address both the frequency…”
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Cloaking of an acoustic sensor using scattering cancellation by Guild, Matthew D., Alù, Andrea, Haberman, Michael R.

“…In this Letter, a bilaminate acoustic cloak designed using scattering cancellation methods is applied to the case of an acoustic sensor consisting of a hollow…”
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Cancellation of acoustic scattering from an elastic sphere by Guild, Matthew D., Alù, Andrea, Haberman, Michael R.

“…Recent research has suggested the possibility of creating acoustic cloaks using metamaterial layers to eliminate the acoustic field scattered from an elastic…”
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Anisotropic acoustic metafluid for underwater operation by Popa, Bogdan-Ioan, Wang, Wenqi, Konneker, Adam, Cummer, Steven A., Rohde, Charles A., Martin, Theodore P., Orris, Gregory J., Guild, Matthew D.

“…The paper presents a method to design and characterize mechanically robust solid acoustic metamaterials suitable for operation in dense fluids such as water…”
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Ultrasonic Nondestructive Evaluation of Additively Manufactured Photopolymers by Sotelo, Luz D., Vignola, Amelia O., Brown, Celeste A., Sampath, Kaushik, Guild, Matthew D.

“…Advanced applications of polymer additive manufacturing (AM) require knowledge of the material acoustic and complex elastic properties. Recently, ultrasound…”
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Demonstration of a directional sonic prism in two dimensions using an air-acoustic leaky wave antenna by Naify, Christina J., Guild, Matthew D., Rohde, Charles A., Calvo, David C., Orris, Gregory J.

“…Analysis and experimental demonstration of a two-dimensional acoustic leaky wave antenna is presented for use in air. The antenna is comprised of a…”
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Evaluation of the resolution of a metamaterial acoustic leaky wave antenna by Naify, Christina J., Rogers, Jeffrey S., Guild, Matthew D., Rohde, Charles A., Orris, Gregory J.

“…Acoustic antennas have long been utilized to directionally steer acoustic waves in both air and water. Typically, these antennas are comprised of arrays of…”
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Experimental Demonstration of Underwater Acoustic Scattering Cancellation by Rohde, Charles A., Martin, Theodore P., Guild, Matthew D., Layman, Christopher N., Naify, Christina J., Nicholas, Michael, Thangawng, Abel L., Calvo, David C., Orris, Gregory J.

“…We explore an acoustic scattering cancellation shell for buoyant hollow cylinders submersed in a water background. A thin, low-shear, elastic coating is used…”
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Superresolution using synthetic shaped acoustic vortex waves in water by Groopman, Amber M., Guild, Matthew D.

“…Acoustic vortex waves have previously been shown to be able to overcome the diffraction limit, through the use of subdiffraction-limited pressure nulls that…”
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Binder jet printing barium titanate piezoelectric ceramic discs by Schipf, David, Yesner, Gregory, Guild, Matthew D.

“…In this study, we measure the properties of barium titanate (BaTiO3) piezoceramic discs that have been binder jet printed and infiltrated with epoxy. Binder…”
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Binder jet printing lead-free piezoelectric ceramics with sintering aids by Schipf, David, Brown, Celeste A., Yesner, Gregory, Guild, Matthew D.

“…In this study, we explore binder jet printing and sintering piezoelectric ceramic samples consisting of barium titanate (BaTiO3) and small amounts of sintering…”
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Computational and experimental analysis of lattices with modulated nonlinearity by Fronk, Matthew D., Sieck, Caleb F., Ikei, Alec K., Guild, Matthew D.

“…There has been growing interest in wave propagation in nonlinear lattices due to their amplitude-dependent dispersion. While previous studies have primarily…”
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Ultrasonic characterization of compressional and shear wave properties for additively manufactured photopolymers by Vignola, Amelia, Brown, Celeste A., Sotelo, Luz D., Guild, Matthew D.

“…Advanced applications of polymer additive manufacturing (AM) require knowledge of the material acoustic and complex elastic properties. Recently, ultrasonic…”
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Mechanical and acoustical characterization of elastic properties for additively manufactured polymers by Brown, Celeste A., Vignola, Amelia, Sotelo, Luz D., Warner, Grant, Guild, Matthew D.

“…Recent advances in the additive manufacturing of photopolymers has opened new opportunities for the design and realization of novel acoustic materials, such as…”
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Multi-electrode piezoelectric plates as non-reciprocal metamaterials by Schipf, David, Le, Peter, Guild, Matthew D., Yesner, Gregory, Sieck, Caleb F.

“…Non-reciprocal transmission of elastic waves through a solid is an exciting phenomenon that could open up new applications for elastic metamaterials…”
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Array signal processing methods for achieving super-resolution using vortex waves by Young, Andrew, Guild, Matthew D., Rogers, Jeffrey S.

“…Helicoidal (vortex) acoustic waves have received much interest lately and can be generated by a variety of means, such as applying a prescribed phase shift to…”
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