Leo Alekseyev - Academia.edu (original) (raw)

Papers by Leo Alekseyev

$Research paper thumbnail of <title>Composite materials with giant anisotropy and negative index of refraction</title>$

Plasmonic Nanoimaging and Nanofabrication, 2005

ABSTRACT

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Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, 2009

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$Research paper thumbnail of Optical Hyperspace: Negative Refractive Index and Subwavelength Imaging$

Tutorials in Complex Photonic Media, 2009

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$Research paper thumbnail of Optical "Hyperlens": imaging in the far field beyond the diffraction limit$

2007 Quantum Electronics and Laser Science Conference, 2007

We propose a system for far field optical imaging below the diffraction limit. As opposed to the ... more We propose a system for far field optical imaging below the diffraction limit. As opposed to the "superlens" based on negative index materials, our approach allows image magnification and is robust with respect to material losses.

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2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference, 2006

We demonstrate 3D imaging using a planar dielectric system based on strongly anisotropic dielectr... more We demonstrate 3D imaging using a planar dielectric system based on strongly anisotropic dielectric material. The proposed planar dielectric lens is capable of subwavelength resolution and does not rely on either magnetic response or periodic patterning.

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$Research paper thumbnail of Negative refraction in mid-infrared semiconductor metamaterials$

2007 Quantum Electronics and Laser Science Conference, 2007

Semiconductor metamaterials consisting of n+-GaInAs/i-AlInAs heterostructures that support negati... more Semiconductor metamaterials consisting of n+-GaInAs/i-AlInAs heterostructures that support negative index modes in the mid-infrared are reported. We demonstrate negative refraction in these metamaterials for wavelengths from 9Â¿15 Â¿m over a wide range of incidence angles.

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2007 Quantum Electronics and Laser Science Conference, 2007

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2007 Conference on Lasers and Electro-Optics (CLEO), 2007

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$Research paper thumbnail of Slow Light Modes in Non-Magnetic Negative Refractive Index Waveguides$

Frontiers in Optics, 2006

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Integrated Photonics Research and Applications/Nanophotonics, 2006

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Integrated Photonics Research and Applications/Nanophotonics, 2006

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Conference on Lasers and Electro-Optics 2010, 2010

We propose a metamaterial device that exhibits a broadband singularity in the photonic density of... more We propose a metamaterial device that exhibits a broadband singularity in the photonic density of states and negative refraction. These resonant and non-resonant effects allow control over decay rates using a planar nanoscale structure.

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Frontiers in Optics, 2005

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$Research paper thumbnail of Non-magnetic System with Negative Index of Refraction for Terahertz Application$

2005 Quantum Electronics and Laser Science Conference, 2005

ABSTRACT

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2007 Quantum Electronics and Laser Science Conference, 2007

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Optics Express, 2006

We demonstrate that strongly anisotropic planar dielectric systems can be used to create waveguid... more We demonstrate that strongly anisotropic planar dielectric systems can be used to create waveguides supporting modes with extremely slow group velocity. Furthermore, we show that such systems can be used for 3D imaging, with a potential for subwavelength resolution.

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