Engineering the dielectric function of plasmonic lattices
نویسندگان
چکیده
منابع مشابه
The Ag dielectric function in plasmonic metamaterials.
Ag permittivity (dielectric function) in coupled strips is different from bulk and has been studied for strips of various dimensions and surface roughness. Arrays of such paired strips exhibit the properties of metamagnetics. The surface roughness does not affect the Ag dielectric function, although it does increase the loss at the plasmon resonances of the coupled strips. The size effect in th...
متن کاملLow-Loss Plasmonic Dielectric Nanoresonators.
Material losses in metals are a central bottleneck in plasmonics for many applications. Here we propose and theoretically demonstrate that metal losses can be successfully mitigated with dielectric particles on metallic films, giving rise to hybrid dielectric-metal resonances. In the far field, they yield strong and efficient scattering, beyond even the theoretical limits of all-metal and all-d...
متن کاملFunction of Religious Capital in the Acceptance of Genetic Engineering
Religions and religious schools have always been one of the main and fundamental factors in the creation and development of civilizations or their destruction. With the establishment of a religious government in Iran; based on the values of the Islamic Revolution, more attention was paid for science and technology. Iran is now praised for its continued growth in scientific publications during t...
متن کاملTunable plasmonic lattices of silver nanocrystals.
Silver nanocrystals are ideal building blocks for plasmonic materials that exhibit a wide range of unique and potentially useful optical phenomena. Individual nanocrystals display distinct optical scattering spectra and can be assembled into hierarchical structures that couple strongly to external electromagnetic fields. This coupling, which is mediated by surface plasmons, depends on the shape...
متن کاملEngineering the optical response of plasmonic nanoantennas.
The optical properties of plasmonic dipole and bowtie nanoantennas are investigated in detail using the Green's tensor technique. The influence of the geometrical parameters (antenna length, gap dimension and bow angle) on the antenna field enhancement and spectral response is discussed. Dipole and bowtie antennas confine the field in a volume well below the diffraction limit, defined by the ga...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Optics Express
سال: 2008
ISSN: 1094-4087
DOI: 10.1364/oe.16.009601