B. Popa

发表

Tapered labyrinthine acoustic metamaterials for broadband impedance matching

S. Cummer, Yangbo Xie, Adam Konneker, 2013 .

Measurement of a broadband negative index with space-coiling acoustic metamaterials.

S. Cummer, Yangbo Xie, B. Popa, 2012, Physical review letters.

Wavefront modulation and subwavelength diffractive acoustics with an acoustic metasurface

Huanyang Chen, S. Cummer, Yangbo Xie, 2014, Nature Communications.

Three-dimensional broadband omnidirectional acoustic ground cloak.

S. Cummer, B. Popa, Lucian Zigoneanu, 2014, Nature materials.

Scattering theory derivation of a 3D acoustic cloaking shell.

David R. Smith, David R Smith, David Schurig, 2008, Physical review letters.

Full-wave simulations of electromagnetic cloaking structures.

David R. Smith, J. Pendry, S. Cummer, 2006, Physical review. E, Statistical, nonlinear, and soft matter physics.

Cloaking with optimized homogeneous anisotropic layers

S. Cummer, B. Popa, 2009 .

Microwave metamaterials made by fused deposition 3D printing of a highly conductive copper-based filament

B. Wiley, S. Cummer, Yangbo Xie, 2017 .

Experimental acoustic ground cloak in air.

S. Cummer, B. Popa, Lucian Zigoneanu, 2011, Physical review letters.

Design of an acoustic metamaterial lens using genetic algorithms.

Steven A Cummer, Bogdan-Ioan Popa, S. Cummer, 2012, The Journal of the Acoustical Society of America.

Phase conjugation and negative refraction using nonlinear active metamaterials.

Gennady Shvets, Steven A Cummer, Bogdan-Ioan Popa, 2010, Physical review letters.

Non-reciprocal and highly nonlinear active acoustic metamaterials

Steven A Cummer, Bogdan-Ioan Popa, S. Cummer, 2014, Nature Communications.

Compact dielectric particles as a building block for low-loss magnetic metamaterials.

Steven A Cummer, Bogdan-Ioan Popa, S. Cummer, 2008, Physical review letters.

$Q$-Based Design Equations and Loss Limits for Resonant Metamaterials and Experimental Validation

S. Cummer, B. Popa, T. Hand, 2008, IEEE Transactions on Antennas and Propagation.

Lumped element-based, highly sub-wavelength, negative index metamaterials at UHF frequencies

Richard W. Ziolkowski, Steven A. Cummer, Bogdan Ioan Popa, 2008 .

A sound absorbing metasurface with coupled resonators

Steven A. Cummer, Bogdan Ioan Popa, Yangbo Xie, 2016 .

Self-focusing in the ocean using out-of-band phase conjugation

K. A. Shorter, B. Popa, Yeonjoon Cheong, 2020 .

Complex coordinates in transformation optics

Steven A. Cummer, Bogdan Ioan Popa, S. Cummer, 2011 .

Full-wave simulations of electromagnetic cloaking structures.

David R. Smith, J. Pendry, S. Cummer, 2006, Physical review. E, Statistical, nonlinear, and soft matter physics.

Zero loss magnetic metamaterials using powered active unit cells.

Yu-qun Yuan, S. Cummer, B. Popa, 2009, Optics express.

M ay 2 01 5 Active acoustic metamaterials reconfigurable in real-time

S. Cummer, Adam Konneker, B. Popa, 2018 .

$Q$-Based Design Equations and Loss Limits for Resonant Metamaterials and Experimental Validation

S. Cummer, B. Popa, T. Hand, 2007, IEEE Transactions on Antennas and Propagation.

Metamaterial characterization from far-field acoustic wave measurements using convolutional neural network

B. Popa, Yeonjoon Cheong, Hyung-Suk Kwon, 2022, Frontiers in Physics.

Learning the dynamics of metamaterials from diffracted waves with convolutional neural networks

B. Popa, Yunseok Choi, Dylan A. Kovacevich, 2022, Communications Materials.

An architecture for active metamaterial particles and experimental validation at RF

Steven A. Cummer, Bogdan Ioan Popa, S. Cummer, 2007 .

Frequency dependence of effective conductivity induced by spatial variance in isotropic heterogeneous media

B. Epureanu, B. Popa, W. Lu, 2023, Applied Physics Letters.

Nonreciprocal active metamaterials

Steven A. Cummer, Bogdan Ioan Popa, S. Cummer, 2012 .

Low frequency lumped element-based negative index metamaterial

Richard W. Ziolkowski, Steven A. Cummer, Bogdan Ioan Popa, 2007 .

Anisotropic acoustic metafluid for underwater operation.

T. P. Martin, G. Orris, S. Cummer, 2016, The Journal of the Acoustical Society of America.

Design and measurements of a broadband two-dimensional acoustic lens

Steven A. Cummer, Bogdan Ioan Popa, S. Cummer, 2011 .

Anomalous Reflection with Omnidirectional Active Metasurfaces Operating in Free Space

B. Popa, Yuxin Zhai, Hyung-Suk Kwon, 2021, Physical Review Applied.

Origami inspired phononic structure with metamaterial inclusions for tunable angular wave steering

K. W. Wang, B. Popa, Megan Hathcock, 2021 .

Active acoustic metamaterials reconfigurable in real-time

Steven A. Cummer, Adam Konneker, Bogdan-Ioan Popa, 2015, 1505.00453.

Broadband nonreciprocal linear acoustics through a non-local active metamaterial

Karl Grosh, Aritra Sasmal, Nathan Geib, 2020, New journal of physics.

A broadband low-reflection metamaterial absorber

John P. Barrett, Steven A. Cummer, Bogdan Ioan Popa, 2010 .

Direct measurement of evanescent wave enhancement inside passive metamaterials.

Steven A Cummer, Bogdan-Ioan Popa, S. Cummer, 2006, Physical review. E, Statistical, nonlinear, and soft matter physics.

Reconfigurable large-scale bulk metamaterials for broadband ultrasonics

B. Epureanu, B. Popa, Hyung-Suk Kwon, 2021 .

Single-sensor multispeaker listening with acoustic metamaterials

Tsung-Han Tsai, David J Brady, Yangbo Xie, 2015, Proceedings of the National Academy of Sciences.

Acoustic Holographic Rendering with Two-dimensional Metamaterial-based Passive Phased Array

Steven A. Cummer, Chen Shen, Yangbo Xie, 2016, Scientific Reports.

Design and measurements of a broadband two-dimensional acoustic metamaterial with anisotropic effective mass density

Steven A. Cummer, Bogdan Ioan Popa, Anthony F. Starr, 2011 .

Design and demonstration of broadband thin planar diffractive acoustic lenses

Steven A. Cummer, Bogdan Ioan Popa, Yangbo Xie, 2014 .

Electromagnetic surface and line sources under coordinate transformations

Steven A. Cummer, Bogdan Ioan Popa, Nathan Kundtz, 2009 .

Subwavelength diffractive acoustics and wavefront manipulation with a reflective acoustic metasurface

Steven A. Cummer, Bogdan Ioan Popa, Yangbo Xie, 2016 .

Tunable nonlocal purely active nonreciprocal acoustic media

B. Popa, K. Grosh, Zhuzhu Wang, 2021 .

Active Willis metamaterials for ultracompact nonreciprocal linear acoustic devices

B. Popa, Yuxin Zhai, Hyung-Suk Kwon, 2019, Physical Review B.

Transformation acoustics with bulk media composed of polarized sources

B. Popa, Dylan A. Kovacevich, 2021, Physical Review B.

Broadband sound barriers with bianisotropic metasurfaces

Bogdan-Ioan Popa, Yuxin Zhai, Hyung-Suk Kwon, 2018, Nature Communications.

Tunable active acoustic metamaterials

Steven A. Cummer, Bogdan Ioan Popa, S. Cummer, 2013 .

Design of layered transformation-optics devices of arbitrary shape

S. Cummer, B. Popa, 2010 .

Autofocusing With Out-of-Band Phase Conjugation

K. A. Shorter, B. Popa, Yeonjoon Cheong, 2019, IEEE Antennas and Wireless Propagation Letters.

Design and characterization of broadband acoustic composite metamaterials

Steven A. Cummer, Bogdan Ioan Popa, S. Cummer, 2009 .

Design and fabrication of a linear broadband non-reciprocal acoustic waveguide using feedforward control

B. Popa, K. Grosh, A. Sasmal, 2019, The Journal of the Acoustical Society of America.

Equivalence between general acoustic Willis media and conventional materials with embedded sources

B. Popa, M. Demir, 2024, Physical Review B.

Powered and nonlinear RF metamaterials

John P. Barrett, Steven A. Cummer, Bogdan Ioan Popa, 2011, NanoScience + Engineering.