Zobrazeno 1 - 10
of 51
pro vyhledávání: '"KRISHNAMOORTHY, P. N."'
Autor:
Chakraborty, Tanmoy, Produit, Thomas, Krishnamoorthy, Harish N S, Soci, Cesare, Paterova, Anna V.
Magneto-optical properties of materials are utilized in numerous applications both in scientific research and industries. The novel properties of these materials can be further investigated by performing metrology in the infrared wavelength range, th
Externí odkaz:
http://arxiv.org/abs/2406.19813
Confinement of electromagnetic fields at the subwavelength scale via metamaterial paradigms is an established method to engineer light-matter interaction in most common material systems, from insulators to semiconductors, from metals to superconducto
Externí odkaz:
http://arxiv.org/abs/2301.07905
Autor:
Sun, Xinxing, Adamo, Giorgio, Eginligil, Mustafa, Krishnamoorthy, Harish N. S., Zheludev, Nikolay I., Soci, Cesare
One of the most striking manifestations of electronic properties of topological insulators is the dependence of the photocurrent direction on the helicity of circularly polarized optical excitation. The helicity dependent photocurrents, underpinned b
Externí odkaz:
http://arxiv.org/abs/2008.08772
High-index dielectric materials are in great demand for nanophotonic devices and applications, from ultrathin optical elements to metal-free sub-diffraction light confinement and waveguiding. Here we show that chalcogenide topological insulators are
Externí odkaz:
http://arxiv.org/abs/1911.09252
Chalcogenide glasses are exceptional materials that show a wide contrast in optical properties upon phase change and are highly researched for reconfigurable electronic and nanophotonic devices. Here, we report the first proof-of-concept demonstratio
Externí odkaz:
http://arxiv.org/abs/1703.10753
Autor:
Yin, Jun, Krishnamoorthy, Harish N. S., Adamo, Giorgio, Dubrovkin, Alexander M., Chong, Yidong D., Zheludev, Nikolay I., Soci, Cesare
The development of nanoplasmonic devices, such as plasmonic circuits and metamaterial superlenses in the visible to ultraviolet frequency range, is hampered by the lack of low-loss plasmonic media. Recently, strong plasmonic response was reported in
Externí odkaz:
http://arxiv.org/abs/1702.00302
Hyperbolic Metamaterials (HMMs) have recently garnered much attention because they possess the ability for broadband manipulation of the photon density of states and sub-wavelength light confinement. These exceptional properties arise due to the exci
Externí odkaz:
http://arxiv.org/abs/1408.5181
Autor:
Galfsky, Tal, Krishnamoorthy, Harish N. S., Newman, Ward D., Narimanov, Evgenii, Jacob, Zubin, Menon, Vinod M.
Hyperbolic Metamaterials (HMMs) have recently garnered much attention because they possess the ability for broadband manipulation of the photon density of states and sub-wavelength light confinement. However, a major difficulty arises with the coupli
Externí odkaz:
http://arxiv.org/abs/1404.1535
Autor:
Krishnamoorthy, Harish N. S., Jacob, Zubin, Narimanov, Evgenii, Kretzschmar, Ilona, Menon, Vinod M.
The ideas of mathematical topology play an important role in many aspects of modern physics - from phase transitions to field theory to nonlinear dynamics (Nakahara M (2003) in Geometry, Topology and Physics, ed Brewer DF (IOP Publishing Ltd, Bristol
Externí odkaz:
http://arxiv.org/abs/1109.5637
Autor:
Krishnamoorthy, Harish N S, Jacob, Zubin, Narimanov, Evgenii, Kretzschmar, Ilona, Menon, Vinod M.
We report the broadband (~ 25 nm) enhancement of radiative decay rate of colloidal quantum dots by exploiting the hyperbolic dispersion of a one-dimensional nonmagnetic metamaterial structure.
Externí odkaz:
http://arxiv.org/abs/0912.2454