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 demonstrate a parabolic reflector nanoantenna as a structure for directivity-enhanced Raman scattering (DERS). This antenna consists of a nanoscale paraboloid shaped Au reflector and an Ag nanoprism feed element. We experimentally test this nanoantenna and obtain a 22× enhancement to the Raman signal from nanoantenna structures with planar reflectors, and estimate a 1100× enhancement to the surface-enhanced...
We have developed rectangular nanohole arrays in a gold film for enhanced sensitivity in biosensing applications. This paper describes the theory and fabrication of such arrays. Finite difference time domain simulations and experiments are used to determine the bulk sensitivity at 635 nm, and the sensitivity is improved by 14× for simulation and 7× for experiments with respect to circular hole arrays...
We examine both experimental and simulated data of the optical transmission response of nanohole arrays in metal films to bulk and surface refractive index changes. We compare the signal-to-noise performance of the following three different analysis methods: the conventional peak shift method, a normalized-difference integrated-response method that is commonly used in 3-D plasmonic crystals, and an...
Isolation of monoclonal (M-) antibodies (Abs) from Ab-secreting cells (ASCs) is impeded by difficulties in identifying the minority of ASCs secreting Ab(s) of interest. We present a novel label-free system that traps ASCs into biocompatible microwells and detects the binding of secreted Ab(s), to a surface-immobilized antigen (Ag), as induced shifts in the extraordinary optical transmission (EOT)...
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.