TY - JOUR
T1 - Erratum
T2 - Highly Subwavelength, Superdirective Cylindrical Nanoantenna (Physical Review Letters (2018) 120 (237401): DOI: 10.1103/PhysRevLett.120.237401)
AU - Arslanagić, Samel
AU - Ziolkowski, Richard W.
N1 - Publisher Copyright:
© 2018 2018 American Physical Society.
PY - 2018/12/14
Y1 - 2018/12/14
N2 - A superdirective cylindrical nanoantenna is demonstrated with a multilayered cylindrical metamaterial-inspired structure. Targeting specific scattering coefficients for the dipole and higher-order modes, the ideal limit of needle radiation is demonstrated. A five-layer system is optimized to demonstrate its approach to the theoretical directivity bound. While the resulting structure is scalable to any frequency regime, its highly subwavelength overall size takes advantage of combinations of positive and negative permittivity materials in the optical regime.
AB - A superdirective cylindrical nanoantenna is demonstrated with a multilayered cylindrical metamaterial-inspired structure. Targeting specific scattering coefficients for the dipole and higher-order modes, the ideal limit of needle radiation is demonstrated. A five-layer system is optimized to demonstrate its approach to the theoretical directivity bound. While the resulting structure is scalable to any frequency regime, its highly subwavelength overall size takes advantage of combinations of positive and negative permittivity materials in the optical regime.
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U2 - 10.1103/PhysRevLett.121.249901
DO - 10.1103/PhysRevLett.121.249901
M3 - Comment/debate
C2 - 30608716
AN - SCOPUS:85058930327
SN - 0031-9007
VL - 121
JO - Physical review letters
JF - Physical review letters
IS - 24
M1 - 249901
ER -