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Nature communications, ISSN 2041-1723, 2018, Volume 9, Issue 1, pp. 1342 - 9
... Shen 1, Ana Díaz-Rubio2, Sergei A. Tretyakov2 & Steven A. Cummer1 Recent advances in gradient metasurfaces have shown that by locally controlling the biani... 
MULTIDISCIPLINARY SCIENCES | Design | Energy flow | Scattering | Wave fronts
Journal Article
Nature communications, ISSN 2041-1723, 2019, Volume 10, Issue 1, pp. 2326 - 8
... Gao1, Huanyang Chen4, C.T. Chan5, Steven A. Cummer3 and Yadong Xu1 Phase gradient metagratings (PGMs) have provided unprecedented opportunities for wavefront... 
WAVES | MULTIDISCIPLINARY SCIENCES | REFRACTION | LIGHT | Reflection | Diffraction | Periodic variations | Efficiency | Parity | Periodicity
Journal Article
Science (American Association for the Advancement of Science), ISSN 0036-8075, 1/2014, Volume 343, Issue 6170, pp. 495 - 496
Structures that admit flow in only one direction are commonplace--consider one-way streets, insect traps, and the staple of the police procedural story, the... 
PERSPECTIVES | MULTIDISCIPLINARY SCIENCES | Sound waves | Propagation | Electromagnetics | Physics | Symmetry
Journal Article
Journal of Geophysical Research: Space Physics, ISSN 0148-0227, 09/2010, Volume 115, Issue A9, p. n/a
Significant temporal variability of the nighttime D region is well known, but its inaccessibility means that the time scales, magnitudes, and sources for that... 
lightning | VLF | D region electron density | FREQUENCIES | RESPONSES | PRECIPITATION | PLANETARY-WAVES | THERMOSPHERE | RADIO-WAVE ABSORPTION | ASTRONOMY & ASTROPHYSICS | RADIATION | GRAVITY | LIGHTNING-GENERATED WHISTLERS | ELECTRON-DENSITY | Atmospheric sciences | Lightning | Scientific apparatus & instruments
Journal Article
Scientific reports, ISSN 2045-2322, 2018, Volume 8, Issue 1, pp. 16188 - 6
... Yangbo Xie1, Yangyang Fu 1,2,3,4, Zhetao Jia1, Junfei Li 1, Chen Shen 1, Yadong Xu3, Huanyang Chen2 and Steven A. Cummer1 The Luneburg lens is a spherically... 
MULTIDISCIPLINARY SCIENCES | Acoustics
Journal Article
New journal of physics, ISSN 1367-2630, 2007, Volume 9, Issue 3, pp. 45 - 45
.... The open–access journal for physics New Journal of Phys ics One path to acoustic cloaking Steven A Cummer 1 and David Schurig Department of Electrical and Computer... 
PHYSICS, MULTIDISCIPLINARY
Journal Article
Scientific reports, ISSN 2045-2322, 2016, Volume 6, Issue 1, p. 35437
... Passive Phased Array Yangbo Xie1,*, Chen Shen2,*, Wenqi Wang1, Junfei Li1, Dingjie Suo2, Bogdan-Ioan Popa1, Yun Jing2 & Steven A. Cummer1 Acoustic holographic... 
TRANSDUCER | VISIBLE-LIGHT | MANIPULATION | METASURFACE | MULTIDISCIPLINARY SCIENCES | Circuits
Journal Article
Advanced functional materials, ISSN 1616-3028, 2019, Volume 29, Issue 13, pp. 1808489 - n/a
Journal Article
Journal of Geophysical Research: Space Physics, ISSN 0148-0227, 05/2011, Volume 116, Issue A5, p. n/a
We described and applied a technique to measure the local midlatitude daytime ionospheric D region electron density profile sharpness from the Earth‐ionosphere... 
lightning | VLF | atmospherics | D region electron density | sferics | FREQUENCIES | PHASE | VARIABILITIES | EMISSIONS | SOLAR-FLARE | AMPLITUDE OBSERVATIONS | ENHANCEMENTS | ASTRONOMY & ASTROPHYSICS | MODEL | PARAMETERS | Atmospheric sciences | Lightning | Scientific apparatus & instruments
Journal Article
Physical Review Letters, ISSN 0031-9007, 04/2013, Volume 110, Issue 17, p. 175501
We report the experimental demonstration of a broadband negative refractive index obtained in a labyrinthine acoustic metamaterial structure. Two different... 
PHYSICS, MULTIDISCIPLINARY
Journal Article
Geophysical Research Letters, ISSN 0094-8276, 03/2016, Volume 43, Issue 6, pp. 2365 - 2373
Journal Article
Scientific Reports, ISSN 2045-2322, 12/2017, Volume 7, Issue 1, pp. 16436 - 8
... during the Monsoon season: First observations from Indian Subcontinent Rajesh Singh 1, Ajeet K. Maurya2, Olivier Chanrion3, Torsten Neubert 3, Steven A. Cummer4, Janusz... 
THUNDERCLOUD | EVENTS | MULTIDISCIPLINARY SCIENCES | DISCHARGES | Wind | Clouds | Troposphere | Monsoons | Polarity | Seasons | Ionosphere | Altitude
Journal Article
Applied physics letters, ISSN 1077-3118, 2016, Volume 108, Issue 22, p. 223502
...Asymmetric acoustic transmission through near-zero-index and gradient-index metasurfaces Chen Shen, 1,a) Y angbo Xie, 2,a) Junfei Li, 2 Steven A. Cummer, 2,b... 
LIGHT-PROPAGATION | SOUND | REFLECTION | PHYSICS, APPLIED | REFRACTION
Journal Article
Proceedings of the National Academy of Sciences - PNAS, ISSN 0027-8424, 8/2015, Volume 112, Issue 34, pp. 10595 - 10598
Journal Article
Nature communications, ISSN 2041-1723, 2014, Volume 5, Issue 1, p. 3398
Unidirectional devices that pass acoustic energy in only one direction have numerous applications and, consequently, have recently received significant... 
LENS | MULTIDISCIPLINARY SCIENCES | RECTIFIER | Models, Theoretical | Electronics - instrumentation | Algorithms | Acoustics - instrumentation | Equipment Design - methods | Computer-Aided Design | Manufactured Materials
Journal Article
Nature materials, ISSN 1476-4660, 2014, Volume 13, Issue 4, pp. 352 - 355
... omnidirectional acoustic ground cloak Lucian Zigoneanu, Bogdan-Ioan Popa and Steven A. Cummer* The control of sound propagation and reection has always been the goal... 
CHEMISTRY, PHYSICAL | PHYSICS, CONDENSED MATTER | PHYSICS, APPLIED | INVISIBILITY CLOAK | MATERIALS SCIENCE, MULTIDISCIPLINARY | Materials science | Acoustics | Sound design | Design engineering | Broadband | Control systems | Transformations | Sound | Metamaterials | Devices | Three dimensional
Journal Article
Journal of Geophysical Research - Space Physics, ISSN 0148-0227, 04/2005, Volume 110, Issue A4, pp. A04304 - n/a
Journal Article