Resonant optical antennas with nanoscale gaps are of high interest due to their ability to enhance electric fields in localized subdiffraction-limited volumes. They are especially attractive for coupling with quantum emitters. One challenge for applications that exhibit a spectral shift is to fabricate nanoantennas that provide two distinct resonances at the excitation and emission frequency, respectively. We propose a coupled T-shaped nanoantenna structure that provides independently controllable resonances with a common electromagnetic hot spot in the antenna gap. We demonstrate the fabrication of such structures and investigate experimentally and theoretically their spatial, time-integrated spectral- and polarization-dependent electromag...
Electric and magnetic optical fields carry the same amount of energy. Nevertheless, the efficiency w...
Electric and magnetic optical fields carry the same amount of energy. Nevertheless, the efficiency w...
The ability to control optical effects at the nanoscale is a challenge that could be of great import...
We analyze the radiative properties of a couple of optical nanoantennas fed at a gap region. We demo...
We address new optical nanoantenna systems with tunable highly directional radiation patterns. The a...
This paper uses finite-difference time-domain modeling to study the impact of varying the polarizati...
Suitably shaped metal nano structures act as resonant optical antennas that efficiently collect ligh...
The peculiar properties of a pair of nanoantennas fed at a gap region have been studied. The possibi...
Paired metallic nanoparticles can show a strong optical resonance that depends strongly upon particl...
With the development of nanotechnologies, researchers have brought the concept of antenna to the opt...
Antennas have been used for over a century as emitters, scatterers and receivers of electromagnetic ...
Directional antennas revolutionized modern day telecommunication by enabling precise beaming of radi...
We propose a novel cross resonant optical antenna consisting of two perpendicular nanosized gold dip...
We propose a novel dual-band resonator nanoantenna array based on fence-shaped nanoparticles for inf...
Within the past several years a tremendous progress regarding optical nano-antennas could be witness...
Electric and magnetic optical fields carry the same amount of energy. Nevertheless, the efficiency w...
Electric and magnetic optical fields carry the same amount of energy. Nevertheless, the efficiency w...
The ability to control optical effects at the nanoscale is a challenge that could be of great import...
We analyze the radiative properties of a couple of optical nanoantennas fed at a gap region. We demo...
We address new optical nanoantenna systems with tunable highly directional radiation patterns. The a...
This paper uses finite-difference time-domain modeling to study the impact of varying the polarizati...
Suitably shaped metal nano structures act as resonant optical antennas that efficiently collect ligh...
The peculiar properties of a pair of nanoantennas fed at a gap region have been studied. The possibi...
Paired metallic nanoparticles can show a strong optical resonance that depends strongly upon particl...
With the development of nanotechnologies, researchers have brought the concept of antenna to the opt...
Antennas have been used for over a century as emitters, scatterers and receivers of electromagnetic ...
Directional antennas revolutionized modern day telecommunication by enabling precise beaming of radi...
We propose a novel cross resonant optical antenna consisting of two perpendicular nanosized gold dip...
We propose a novel dual-band resonator nanoantenna array based on fence-shaped nanoparticles for inf...
Within the past several years a tremendous progress regarding optical nano-antennas could be witness...
Electric and magnetic optical fields carry the same amount of energy. Nevertheless, the efficiency w...
Electric and magnetic optical fields carry the same amount of energy. Nevertheless, the efficiency w...
The ability to control optical effects at the nanoscale is a challenge that could be of great import...