Zobrazeno 1 - 10
of 98
pro vyhledávání: '"Chettiar, Uday K."'
Autor:
Sivan, Yonatan, Xiao, Shumin, Chettiar, Uday K., Kildishev, Alexander V., Shalaev, Vladimir M.
We solve the equations governing light propagation in a negative-index material with embedded nonlinearly saturable gain material using a frequency-domain model. We show that available gain materials can lead to complete loss compensation only if the
Externí odkaz:
http://arxiv.org/abs/0912.0289
Autor:
Xiao, Shumin, Chettiar, Uday K., Kildishev, Alexander V., Drachev, Vladimir, Khoo, I. C., Shalaev, Vladimir M.
We demonstrate a thermally tunable optical metamaterial with negative permeability working in the visible range. By covering coupled metallic nanostrips with aligned nematic liquid crystals (NLCs), the magnetic response wavelength of the metamaterial
Externí odkaz:
http://arxiv.org/abs/0907.1871
Autor:
Xiao, Shumin, Chettiar, Uday K., Kildishev, Alexander V., Drachev, Vladimir P., Shalaev, Vladimir M.
A well-established, silver fishnet design has been further miniaturized to function as a negative-index material at the shortest wavelength to date. By studying the transmittance, reflectance, and corresponding numerical simulations of the sample, we
Externí odkaz:
http://arxiv.org/abs/0907.1870
Autor:
Chettiar, Uday K., Kildishev, Alexander V., Cai, Wenshan, Yuan, Hsiao-Kuan, Drachev, Vladimir P., Shalaev, Vladimir M.
A new class of artificially structured materials called metamaterials makes it possible to achieve electromagnetic properties that do not exist in nature. In this paper we review the recent progress made in the area of optical metamaterials. It was p
Externí odkaz:
http://arxiv.org/abs/0806.2677
Autor:
Cai, Wenshan, Chettiar, Uday K., Kildishev, Alexander V., Milton, Graeme W., Shalaev, Vladimir M.
In an electromagnetic cloak based on a transformation approach, reduced sets of material properties are generally favored due to their easier implementation in reality, although a seemingly inevitable drawback of undesired reflection exists in such c
Externí odkaz:
http://arxiv.org/abs/0707.3641
Autor:
Cai, Wenshan, Chettiar, Uday K., Yuan, Hsiao-Kuan, de Silva, Vashista, Kildishev, Alexander V., Drachev, Vladimir P., Shalaev, Vladimir M.
A family of coupled nano-strips with varying dimensions is fabricated to obtain optical magnetic responses across the whole visible spectrum, from red to blue. The proposed approach provides one with a universal building block and a general recipe fo
Externí odkaz:
http://arxiv.org/abs/physics/0701020
Autor:
Chettiar, Uday K., Kildishev, Alexander V., Yuan, Hsiao-Kuan, Cai, Wenshan, Xiao, Shumin, Drachev, Vladimir P., Shalaev, Vladimir M.
This work is concerned with the experimental demonstration of a dual-band negative index metamaterial. The sample is double-negative (showing both a negative effective permeability and a negative effective permittivity) for wavelengths between 799 an
Externí odkaz:
http://arxiv.org/abs/physics/0612247
Artificially structured metamaterials have enabled unprecedented flexibility in manipulating electromagnetic waves and producing new functionalities, including the cloak of invisibility based on coordinate transformation. Here we present the design o
Externí odkaz:
http://arxiv.org/abs/physics/0611242
Autor:
Yuan, Hsiao-Kuan, Chettiar, Uday K., Cai, Wenshan, Kildishev, Alexander V., Drachev, Vladimir P., Boltasseva, Alexandra, Shalaev, Vladimir M.
Experimental demonstration of a negative permeability due to near-field coupling of periodic thin silver strips is presented. Two samples with different strip thicknesses are fabricated; optical measurements of the samples confirm our initial design
Externí odkaz:
http://arxiv.org/abs/physics/0610118
Autor:
Kildishev, Alexander V., Drachev, Vladimir P., Chettiar, Uday K., Werner, Douglas, Kwon, Do-Hoon, Shalaev, Vladimir M.
A key optical parameter characterizing the existence of negative refraction in a thin layer of a composite material is the effective refractive index of an equivalent, homogenized layer with the same physical thickness as the initial inhomogeneous co
Externí odkaz:
http://arxiv.org/abs/physics/0609234