TY - JOUR
T1 - Plasmonic Moon: a Fano-like approach for squeezing the magnetic field in the infrared
AU - Panaro, Simone
AU - Nazir, Adnan
AU - Proietti Zaccaria, Remo
AU - Razzari, Luca
AU - Liberale, Carlo
AU - De Angelis, Francesco
AU - Toma, Andrea
N1 - KAUST Repository Item: Exported on 2020-10-01
PY - 2015/8/17
Y1 - 2015/8/17
N2 - Outstanding results have been achieved in the localization of optical electric fields via ultrasmall plasmonic cavities, paving the way to the subdiffractive confinement of local electromagnetic fields. However, due to the intrinsic constraints related to conventional architectures, no comparable squeezing factors have been managed yet for the magnetic counterpart of radiation, practically hindering the detection and manipulation of magneto-optical effects at the nanoscale. Here, we observe a strong magnetic field nanofocusing in the infrared, promoted by the induction of a coil-type Fano resonance. By triggering the coil current via a quadrupole-like plasmonic mode, we straightforwardly boost the enhancement of the infrared magnetic field and perform its efficient squeezing in localized nanovolumes.
AB - Outstanding results have been achieved in the localization of optical electric fields via ultrasmall plasmonic cavities, paving the way to the subdiffractive confinement of local electromagnetic fields. However, due to the intrinsic constraints related to conventional architectures, no comparable squeezing factors have been managed yet for the magnetic counterpart of radiation, practically hindering the detection and manipulation of magneto-optical effects at the nanoscale. Here, we observe a strong magnetic field nanofocusing in the infrared, promoted by the induction of a coil-type Fano resonance. By triggering the coil current via a quadrupole-like plasmonic mode, we straightforwardly boost the enhancement of the infrared magnetic field and perform its efficient squeezing in localized nanovolumes.
UR - http://hdl.handle.net/10754/575658
UR - https://pubs.acs.org/doi/10.1021/acs.nanolett.5b02407
UR - http://www.scopus.com/inward/record.url?scp=84941102387&partnerID=8YFLogxK
U2 - 10.1021/acs.nanolett.5b02407
DO - 10.1021/acs.nanolett.5b02407
M3 - Article
SN - 1530-6984
VL - 15
SP - 6128
EP - 6134
JO - Nano Letters
JF - Nano Letters
IS - 9
ER -