The Infona portal uses cookies, i.e. strings of text saved by a browser on the user's device. The portal can access those files and use them to remember the user's data, such as their chosen settings (screen view, interface language, etc.), or their login data. By using the Infona portal the user accepts automatic saving and using this information for portal operation purposes. More information on the subject can be found in the Privacy Policy and Terms of Service. By closing this window the user confirms that they have read the information on cookie usage, and they accept the privacy policy and the way cookies are used by the portal. You can change the cookie settings in your browser.
We review recent progress in optical metamaterials and demonstrate our sample with negative index behavior at the shortest wavelength so far (710 nm). We discuss the impact of fabrication limitations on the performance of metamaterials.
Metamaterials are expected to open a gateway to unprecedented electromagnetic properties and functionality unattainable from naturally occurring materials, thus enabling a family of new "meta-devices". We review this new emerging field and significant progress in developing metamaterials for the optical part of the spectrum. Specifically, we describe recently demonstrated artificial magnetism...
A negative index metamaterial demonstrating n=-1.0+0.8i with both negative effective permittivity and permeability at 813 nm of linearly polarized light is fabricated. It also exhibits a negative refractive index at 770 nm for orthogonal polarization.
Practical optical negative index materials based on coupled plasmon resonances must overcome reflection and absorption. Simulations show that matched impedance and compensated losses due to optimized design and gain material, respectively, lead to 100% transmission.
We explore the possibility of scaling up novel left-handed materials (LHMs) from the microwave to the optical spectral range. This would make possible imaging and nanophotolithography with spatial resolution in the tens of nanometers
Set the date range to filter the displayed results. You can set a starting date, ending date or both. You can enter the dates manually or choose them from the calendar.