Spectral control in anisotropic resonance-domain metamaterials
Husu, Hannu; Mäkitalo, Jouni; Siikanen, Roope; Genty, Goery; Pietarinen, Henna; Lehtolahti, Joonas; Laukkanen, Janne; Kuittinen, Markku; Kauranen, Martti (2011)
Husu, Hannu
Mäkitalo, Jouni
Siikanen, Roope
Genty, Goery
Pietarinen, Henna
Lehtolahti, Joonas
Laukkanen, Janne
Kuittinen, Markku
Kauranen, Martti
2011
Julkaisun pysyvä osoite on
https://urn.fi/URN:NBN:fi:tty-2011111514881
https://urn.fi/URN:NBN:fi:tty-2011111514881
Kuvaus
Peer reviewed
Tiivistelmä
We introduce a concept to control the spectral and dichroic properties of metamaterials. The approach is based on anisotropic metal nanoparticles and on varying their mutual orientation in a periodic lattice. Even seemingly inconsequential changes in particle ordering strongly modify the dichroic properties of the arrays and result in either very narrow resonances or ultrabroad extinction ranges. The results arise from long-range diffractive coupling between the particles, as determined by the dependence of the array unit cell size on particle ordering.
Kokoelmat
- TUNICRIS-julkaisut [16951]