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Now showing items 210-213 of 213

Waves in hyperbolic and double negative metamaterials including rogues and solitons

Boardman, A D; Alberucci, A; Assanto, G; Grimalsky, V V; Kibler, B; McNiff, J; Nefedov, I S; Rapoport, Yu G; Valagiannopoulos, Constantinos (Nanotechnology, 2017-10-20)

The topics here deal with some current progress in electromagnetic wave propagation in a family of substances known as metamaterials. To begin with, it is discussed how a pulse can develop a leading edge that steepens and ...
Wide-angle absorption of visible light from simple bilayers

PAPADIMOPOULOS, ATHANASIOS N.; KANTARTZIS, NIKOLAOS V.; TSITSAS, NIKOLAOS L.; Valagiannopoulos, Constantinos (Optical Society of America, 2017-12-08)

Color-selective absorption of light is a very significant operation used in numerous applications, from photonic sensing and switching to optical signal modulation and energy harnessing. We demonstrate angle-insensitive ...
Widely tunable (2.6–10.4 μm) BaGa4Se7 optical parametric oscillator pumped by a Q-switched Nd:YLiF4 laser

Kolker, Dmitri; Kostyukova, N.; Boyko, A.; Badikov, V.; Badikov, D.; Shadrintseva, A.; Tretyakova, N.; Zenov, K.; Karapuzikov, A.; Zondy, Jean-Jacques (IOP Publishing, 2018)

We report on the first BaGa4Se7 nanosecond optical parametric oscillator pumped by Q-switched Nd:YLiF4 laser at 1053 nm. The oscillator exhibits a pump threshold energy as low as 0.25 mJ. Mid-infrared (MIR) idler wave ...
Zeeman gyrotropic scatterers: Resonance splitting, anomalous scattering, and embedded eigenstates

Gangaraj, S Ali Hassani; Monticone, Francesco; Valagiannopoulos, Constantinos (Nanomaterials and Nanotechnology, 2018-09)

Anomalous scattering effects (invisibility, superscattering, Fano resonances, etc) enabled by complex media and metamaterials have been the subject of intense efforts in the past couple of decades. In this article, we ...