In this thematic issue, we have collected peer-reviewed articles focused on recent progress achieved in the field of optical or electrical excitation of optical antennas. The focus is on fundamental mechanisms of light–matter interaction on the nanometer scale, novel fabrication methods, and prospective applications ranging from super-resolution chemical microscopy, sensing or light sources to novel quantum devices for optoelectronics. Furthermore, novel optical antennas with atomically narrow gaps allow for optically and electrically induced electron tunneling and open the door to nano-optics beyond classical electrodynamics.
Some topics covered in the manuscripts include:
- Plasmonic optical antennas
- Near-field enhancement
- Electrically driven nanoantennas
- Hot electron injection
- Ultrafast effects
- Nonlinear effects
- Fabrication of nanoantennas
- Hybrid nanoantenna systems
- SERS / TERS
- Optical nano-spectroscopy
- Nano-light sources and light amplification
- Applications of optical nanoantennas
Beilstein J. Nanotechnol. 2020, 11, 1542–1545, doi:10.3762/bjnano.11.136
Beilstein J. Nanotechnol. 2018, 9, 1964–1976, doi:10.3762/bjnano.9.187
Beilstein J. Nanotechnol. 2018, 9, 1977–1985, doi:10.3762/bjnano.9.188
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Beilstein J. Nanotechnol. 2020, 11, 1147–1156, doi:10.3762/bjnano.11.99