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.
Antireflection, self-cleaning coatings are widely used in various applications such as display panels, solar cells and optical lenses [1]. Many surfaces in nature are highly hydrophobic, making the deposition of a water drop almost impossible. Examples include the wings of butterflies and the leaves of plants. The best known illustration of a self-cleaning surface is indubitably that of the leaves...
Nanostructures have been fabricated on a glass surface by reactive ion etching through a metallic nano-mask, refer to Figure 1. The metallic nano-mask is formed by dewetting ultrathin metal films (<10nm thickness) subjected to rapid thermal annealing (RTA) [1].
Optical high-voltage sensors have outstanding advantages in terms of isolation and immunity to electromagnetic interference. So far, several configurations have been proposed, mostly based on integrated Mach-Zehnder interferometers [1] or polarization/phase rotation in piezo-electric crystal [2]. While the first scheme requires initial electrical bias to compensate for the phase mismatch between the...
We present a novel all-optical electric field sensor based on a proton-exchange waveguide near cut-off, centered on a few microns wide domain-inverted region in a z-cut LiNbO3 substrate. The output intensity from the waveguide is modulated by an external electric field via the electro-optic effect. We also demonstrate the sensor’s performance by detecting DC fields up to 2.6 MV/m and high-frequency...
Electric-field domain inversion cannot be performed in z-cut LiNbO3 after waveguide fabrication using common Ti-indiffusion techniques. In this work we show that an appropriate combination of low indiffusion temperature, dry O2 and Li enriched atmosphere during waveguide fabrication allows subsequent domain inversion without the need for any surface grinding, which would dramatically increase the...
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.