Photoluminescence-Driven Broadband Transmitting Directional Optical Nanoantennas

Broadband scattering by tapered nanoantennas

1 Introduction Plasmonic nanoantennas have become a subject of considerable interest [1–3]. Numerous intriguing applications of nanoantennas in areas as diverse as optical and quantum communication, nonlinear optics, sensing, and photovoltaics have been discussed [3]. Ar-rayed nanoantennas like Yagi–Uda architectures down-scaled to nanometer dimensions are particularly suited for such applicati...

Broadband light bending with plasmonic nanoantennas.

The precise manipulation of a propagating wave using phase control is a fundamental building block of optical systems. The wavefront of a light beam propagating across an interface can be modified arbitrarily by introducing abrupt phase changes. We experimentally demonstrated unparalleled wavefront control in a broadband optical wavelength range from 1.0 to 1.9 micrometers. This is accomplished...

Hybrid nanoantennas for directional emission enhancement

Waveguide structure design of broadband optical directional couplers

Chi-Feng Chen (1), Yun-Sheng Ku (2), Kuan-Hsiung Chen (3) 1 : Department of Mechanical Engineering / Institute of Opto-Mechatronics Engineering, National Central University. Jhongli, Taiwan, R.O.C E-mail:[email protected] 2 : Department of Mechanical Engineering, National Central University, Jhongli, Taiwan, R.O.C. Email: [email protected] 3: Industrial Technology Research Institute, Hsinc...

Imaging and steering an optical wireless nanoantenna link

Optical nanoantennas tailor the transmission and reception of optical signals. Owing to their capacity to control the direction and angular distribution of optical radiation over a broad spectral range, nanoantennas are promising components for optical communication in nanocircuits. Here we measure wireless optical power transfer between plasmonic nanoantennas in the far-field and demonstrate c...