Sentences with phrase «optical response»

Unexpectedly, the crystals exhibited the largest nonlinear optical response of any known crystal.

The thin semiconductor layers confine electrons into desired quantum states, and gold nanocrosses resonate at input and output frequencies to enable the the nonlinear optical response of the mirror.

The research team led by UT Austin's Department of Electrical and Computer Engineering professors Mikhail Belkin and Andrea Alu, in collaboration with colleagues from the Technical University of Munich, has created thin - film nonlinear metamaterials with optical response many orders of magnitude larger than that of traditional nonlinear materials.

One such property is hyperbolicity, whereby a material exhibits both metallic - and dielectric - like optical responses simultaneously along different crystal axes.

Some structures combined a number of materials, such as gold and a semiconductor, including patterns that provide useful optical responses.

Those kinds of light sources, however, tend to be bulky, expensive, and require careful alignment and periodic recalibration to obtain a reliable optical response.

The metamaterial at the basis of this unusual optical response consists of a sequence of thin layers made of indium, gallium and arsenic on the one hand and aluminum, indium and arsenic on the other.

«Our results show that nonlinear scattering theory can be a valuable tool in the design of nonlinear metamaterials not only for second - order but also higher order nonlinear optical responses over a broad range of wavelengths,» O'Brien says.

Umber Blue (1978) seems to image something familiar — in this case it could initially be taken to represent a void between buildings or trees — but this almost automatic optical response doesn't last very long.

The metamaterials were created with nonlinear optical response a million times as strong as traditional nonlinear materials and demonstrated frequency conversion in films 100 times as thin as human hair using light intensity comparable with that of a laser pointer.

This process enhanced the material's optical response to electrical signals by allowing more of the thin film to contribute to coloration reactions.

This perfection process is appealing because it provides a simple, fast, reproducible, and scalable route toward gold nanorods with an optical response of exceptional quality, near the theoretical limit.

Explore further: Exotic material exhibits an optical response in enormous disproportion to the stimulus