TY  - JOUR
AU  - Novotny, Lukas
PY  - 2007
DA  - 2007//
TI  - Effective wavelength scaling for optical antennas
T2  - Phys. Rev. Lett.
JO  - Phys. Rev. Lett.
SP  - 266802(1
EP  - 4)
VL  - 98
IS  - 26
KW  - optical antennas
AB  - In antenna theory, antenna parameters are directly related to the wavelength λ of incident radiation, but this scaling fails at optical frequencies where metals behave as strongly coupled plasmas. In this Letter we show that antenna designs can be transferred to the optical frequency regime by replacing λ by a linearly scaled effective wavelength λeff=n1+n2λ/λp, with λp being the plasma wavelength and n1, n2 being coefficients that depend on geometry and material properties. It is assumed that the antenna is made of linear segments with radii Râ‰<aa>λ. Optical antennas hold great promise for increasing the efficiency of photovoltaics, light-emitting devices, and optical sensors.
N1  - exported from refbase (https://db.rplab.ru/refbase/show.php?record=749), last updated on Mon, 24 May 2021 14:33:25 -0500
ID  - Novotny2007
ER  -