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.
The development of miniature circuits that integrate single-photon sources, linear optical components, and detectors on a chip is one of the central research topics in quantum optics. Here plasmonic nanocircuits can play an essential role. So far the integration of quantum light sources into plasmonic circuits has been a challenge. In this work we present a quantum plasmonic nanocircuit driven by...
Nonlinear spectroscopy allows us to track for the first time the decay and re-emission of excitations in a single CdSe nanowire. We further discuss an optical nanoantenna to improve the signal.
We demonstrate how a plasmonic nanoantenna can act as tunable resonant material that enhances third harmonic generation. We are able to quantitatively model the nonlinear spectrum with a nonlinear oscillator in position, shape, and amplitude.
An optical nanoantenna increases the nonlinear transient absorption signal of a single 40 nm gold nanodisc by an order of magnitude. In agreement with our calculations the signal is spectrally shifted to the antenna resonance.
Optical nanoantennas are a novel tool to investigate previously unattainable dimensions in the nanocosmos. At these scales, single nanoobjects with a size of a few nanometers show exceptional optical properties differing from bulk behavior. Nonlinear spectroscopy investigates the deviations from linear light-matter interaction. The weak nonlinear response is reduced further when single nanoobjects...
An optical nanoantenna increases the nonlinear transient absorption signal of a single 40 nm gold nanodisc by an order of magnitude. In agreement with our calculations the signal is spectrally shifted to the antenna resonance.
We study third harmonic generation from arrays of plasmonic nanoantennas. Specifically, we investigate the size, gap, and material dependence of the conversion efficiency and find it to be a function of the plasmon resonance energies.
We report on Rabi oscillations in the ground state exciton transition of a single GaAs/AlGaAs quantum dot measured by a reflective, ultrafast pump-probe technique using only far field microscopic techniques.
A tiny variation of a single metal nanoparticle's dielectric properties has only a weak influence on the light field. We demonstrate, using antenna concepts, how plasmon hybridization helps to increase the particle's influence.
We present time-resolved nonlinear optical measurements on polaritonic states in metallic photonic crystals. The femtosecond time dynamics of the polariton are tailored by an interferometric three-pulse pump-probe technique.
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.