A full analytical description of a bowtie nanoantenna excited by a localized emitter is presented using the transformation electromagnetic technique. By applying the conformal mapping, the bowtie nanoantenna is transformed into a periodic multi-parallel plate transmission line problem which can be easily evaluated analytically providing physical insight of the coupling between the dipole nanoemitter and the bowtie nanoantenna. The non-radiative Purcell enhancement spectrum is evaluated both analytically and numerically for different lengths, arm angles and metals, demonstrating a good agreement between both approaches. The method here presented fills the gap of the design techniques for optical nanoantennas.
|Title of host publication||2017 IEEE Antennas and Propagation Society International Symposium, Proceedings|
|Publisher||Institute of Electrical and Electronics Engineers (IEEE)|
|Number of pages||2|
|Publication status||Published - 18 Oct 2017|
|Event||2017 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2017 - San Diego, United States|
Duration: 9 Jul 2017 → 14 Jul 2017
|Conference||2017 IEEE International Symposium on Antennas and Propagation and USNC-URSI Radio Science Meeting, APSURSI 2017|
|Period||9/07/17 → 14/07/17|
- Bowtie nanoantenna
- Conformal transformation
- Purcell enhancement.
ASJC Scopus subject areas
- Computer Networks and Communications