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 present an all-optical, fiber-based quantum switch that operates at high speeds with low loss and-most importantly-retains the incident photons' quantum state, thereby making it useful for applications in quantum communications.
This paper describes the design and numerical simulations of a switch system to launch fast (100 ps), high-voltage (>100 kV) spherical TEM waves from the first focal point of a prolate-spheroidal impulse-radiating antenna.
This paper briefly reviews the design of a prolate-spheroidal impulse-radiating antenna system, to launch and focus fast (100 ps) high-voltage (> 100 kV) pulses, as a non-invasive tool for melanoma (skin cancer) treatment. The experiments on a graded five-layer dielectric lens, designed to match the pulses into a biological target medium, are outlined. The design of a switch system to launch high-voltage...
We report all-optical modulation at 2 GHz with 19 atto-joules, using a tapered nano-fiber embedded in Rb vapor. The switching energy is a record low value for modulation at this speed, requiring only 75 photons.
We report on a new physical layer optical encryption approach based on quantum noise limited optical signals and M-ary optical phase shift keying that operates at high data rates. In contrast to established encryption methods that rely solely on deterministic algorithms, this system utilizes quantum noise to realize a randomized cipher. Keyed M-ary optical phase modulation is used to encrypt quantum-noise...
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.