Integrated Zero Index Metamaterials

Extreme optics with zero-index and flat-band metamaterials, at AP483 Optics & Electronics Seminar, Stanford University, Monday, February 1, 2021:
Nanotechnology has enabled the development of nanostructured composite materials (metamaterials) with exotic optical properties not found in nature. In the most extreme case, we can create materials which support light waves that propagate with infinite phase velocity, corresponding to a refractive index of zero. We have developed a variety of in-plane metamaterial designs that permit obtaining a refractive index of zero in the optical regime. We will report on some of the exotic physics of zero-index metamaterials, including strong enhancement of nonlinear optical phenomena, and on flat-... Read more about Extreme optics with zero-index and flat-band metamaterials
The surprising world of zero-index materials, at Wednesday Night Research Seminar, Harvard University, Cambridge, MA, Wednesday, September 23, 2020:

VIDEO OF PRESENTATION

 

Nanotechnology has enabled the development of nanostructured composite materials (metamaterials) with exotic optical properties not found in nature. In the most extreme case, we can create materials which support light waves that propagate with infinite phase velocity, corresponding to a refractive index of zero. This zero index can only be achieved by simultaneously controlling the electric and magnetic resonances...

Read more about The surprising world of zero-index materials
Extreme optics with zero-index metamaterials, at PQE 2020, Snowbird, UT, Tuesday, January 7, 2020:
Nanotechnology has enabled the development of nanostructured composite materials (metamaterials) with exotic optical properties not found in nature. In the most extreme case, we can create materials which support light waves that propagate with infinite phase velocity, corresponding to a refractive index of zero. We have developed a variety of in-plane metamaterial designs that permit obtaining a refractive index of zero in the optical regime. We will report on some of the exotic physics of zero-index metamaterials, including strong enhancement of nonlinear optical phenomena
Making light go infinitely fast, at RCC Workshop on Nanomaterials, Real Colegio Complutense at Harvard University (Cambridge, MA), Friday, May 1, 2015:
Impedance-matched metamaterials with zero refractive index can be achieved by exploiting a Dirac cone at the center of the Brillouin zone. We present an in-plane Dirac-cone metamaterial consisting of low-aspect-ratio silicon pillar arrays in an SU-8 matrix with top and bottom gold layers. Using an integrated nano-scale prism constructed of the proposed material, we demonstrate unambiguously a zero refractive index in the optical regime. This design serves as a novel on-chip platform in the optical regime to explore the exotic physics of Dirac-cone metamaterials and to implement applications... Read more about Making light go infinitely fast
Less is More: Extreme Optics with Zero Refractive Index, at Physics Colloquium, UMass Lowell (Lowell, MA), Wednesday, February 24, 2016:
Nanotechnology has enabled the development of nanostructured composite materials (metamaterials) with exotic optical properties not found in nature. In the most extreme case, we can create materials which support light waves that propagate with infinite phase velocity, corresponding to a refractive index of zero. This zero index can only be achieved by simultaneously controlling the electric and magnetic resonances of the nanostructure. We present an in-plane metamaterial design consisting of silicon pillar arrays, embedded within a polymer matrix and sandwiched between gold layers. Using an... Read more about Less is More: Extreme Optics with Zero Refractive Index
Less is More: Extreme Optics with Zero Refractive Index, at International School on Light Sciences and Technologies, Universidad Internacional Menéndez Pelayo (Santander, Spain), Wednesday, June 21, 2017:
Nanotechnology has enabled the development of nanostructured composite materials (metamaterials) with exotic optical properties not found in nature. In the most extreme case, we can create materials which support light waves that propagate with infinite phase velocity, corresponding to a refractive index of zero. This zero index can only be achieved by simultaneously controlling the electric and magnetic resonances of the nanostructure. We present an in-plane metamaterial design consisting of silicon pillar arrays, embedded within a polymer matrix and sandwiched between gold layers. Using an... Read more about Less is More: Extreme Optics with Zero Refractive Index
On-chip zero-index metamaterialse, at Peking University (Beijing, China), Friday, December 18, 2015:
Nanotechnology has enabled the development of nanostructured composite materials (metamaterials) with exotic optical properties not found in nature. In the most extreme case, we can create materials which support light waves that propagate with infinite phase velocity, corresponding to a refractive index of zero. This zero index can only be achieved by simultaneously controlling the electric and magnetic resonances of the nanostructure. We present an in-plane metamaterial design consisting of silicon pillar arrays, embedded within a polymer matrix and sandwiched between gold layers. Using an... Read more about On-chip zero-index metamaterialse
Less is More: Extreme Optics with Zero Refractive Index, at International Conference on Nanojoining and Microjoining 2016 (Niagara, ON, Canada), Sunday, September 25, 2016:
Nanotechnology has enabled the development of nanostructured composite materials (metamaterials) with exotic optical properties not found in nature. In the most extreme case, we can create materials which support light waves that propagate with infinite phase velocity, corresponding to a refractive index of zero. This zero index can only be achieved by simultaneously controlling the electric and magnetic resonances of the nanostructure. We present an in-plane metamaterial design consisting of silicon pillar arrays, embedded within a polymer matrix and sandwiched between gold layers. Using an... Read more about Less is More: Extreme Optics with Zero Refractive Index
Dirac-cone based negative/zero/positive refractive index metamaterials, at SPIE Photonics West: Photonic and Phononic Properties of Engineered Nanostructures IV (San Francisco, California), Thursday, February 6, 2014
Based on accidental degeneracy, a Dirac-cone can be formed at the center of the Brillouin zone of a photonic crystal, which can be treated as a homogeneous bulk metamaterial in the vicinity of Dirac-point. In the vicinity below (above) the Dirac-point, the backward-wave (forward-wave) implies negative (positive) n_eff; at Dirac-point, k=0 induces zero n_eff. This negative/zero/positive refractive index shows low-loss and good impedance matching to free-space. According to this principle, we designed a Dirac-cone based metamaterial consisting of 2D square array of silicon pillars operating... Read more about Dirac-cone based negative/zero/positive refractive index metamaterials
Less is More: Extreme Optics with Zero Refractive Index, at Seminar on Modern Optics and Spectroscopy, Massachusetts Institute of Technology (Cambridge, MA), Tuesday, March 22, 2016:
Nanotechnology has enabled the development of nanostructured composite materials (metamaterials) with exotic optical properties not found in nature. In the most extreme case, we can create materials which support light waves that propagate with infinite phase velocity, corresponding to a refractive index of zero. This zero index can only be achieved by simultaneously controlling the electric and magnetic resonances of the nanostructure. We present an in-plane metamaterial design consisting of silicon pillar arrays, embedded within a polymer matrix and sandwiched between gold layers. Using an... Read more about Less is More: Extreme Optics with Zero Refractive Index
The surprising world of nanostructured composites with zero refractive index, at 10th International Conference on Nanophotonics (Recife, Brazil), Sunday, July 2, 2017
Nanotechnology has enabled the development of nanostructured composite materials (metamaterials) with exotic optical properties not found in nature. In the most extreme case, we can create materials which support light waves that propagate with infinite phase velocity, corresponding to a refractive index of zero. This zero index can only be achieved by simultaneously controlling the electric and magnetic resonances of the nanostructure. We present an in-plane metamaterial design consisting of silicon pillar arrays, embedded within a polymer matrix and sandwiched between gold layers. Using an... Read more about The surprising world of nanostructured composites with zero refractive index
Less is More: Extreme Optics with Zero Refractive Index, at Sichuan University (Chengdu, China), Monday, December 21, 2015:
Nanotechnology has enabled the development of nanostructured composite materials (metamaterials) with exotic optical properties not found in nature. In the most extreme case, we can create materials which support light waves that propagate with infinite phase velocity, corresponding to a refractive index of zero. This zero index can only be achieved by simultaneously controlling the electric and magnetic resonances of the nanostructure. We present an in-plane metamaterial design consisting of silicon pillar arrays, embedded within a polymer matrix and sandwiched between gold layers. Using an... Read more about Less is More: Extreme Optics with Zero Refractive Index
Less is More: Extreme Optics with Zero Refractive Index, at CityU OSA Chapter and Department of Physics and Materials Science Lecture, City University of Hong Kong (Hong Kong, China), Monday, March 27, 2017
Nanotechnology has enabled the development of nanostructured composite materials (metamaterials) with exotic optical properties not found in nature. In the most extreme case, we can create materials which support light waves that propagate with infinite phase velocity, corresponding to a refractive index of zero. This zero index can only be achieved by simultaneously controlling the electric and magnetic resonances of the nanostructure. We present an in-plane metamaterial design consisting of silicon pillar arrays, embedded within a polymer matrix and sandwiched between gold layers. Using an... Read more about Less is More: Extreme Optics with Zero Refractive Index
Less is More: Extreme Optics with Zero Refractive Index, at United States Coast Guard Academy (New London, Connecticut), Monday, October 26, 2015:
Nanotechnology has enabled the development of nanostructured composite materials (metamaterials) with exotic optical properties not found in nature. In the most extreme case, we can create materials which support light waves that propagate with infinite phase velocity, corresponding to a refractive index of zero. This zero index can only be achieved by simultaneously controlling the electric and magnetic resonances of the nanostructure. We present an in-plane metamaterial design consisting of silicon pillar arrays, embedded within a polymer matrix and sandwiched between gold layers. Using an... Read more about Less is More: Extreme Optics with Zero Refractive Index
Less is More: Extreme Optics with Zero Refractive Index, at Trinity College (Dublin, Ireland), Thursday, April 7, 2016:
Nanotechnology has enabled the development of nanostructured composite materials (metamaterials) with exotic optical properties not found in nature. In the most extreme case, we can create materials which support propagating light waves that have infinite phase velocity, corresponding to a refractive index of zero. This zero index can only be achieved by simultaneously controlling the electric and magnetic resonances of the nanostructure. We present an in-plane metamaterial design consisting of silicon pillar arrays, embedded within a polymer matrix and sandwiched between gold layers. Using... Read more about Less is More: Extreme Optics with Zero Refractive Index

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