Open AccessPolarity-variable birefringence on hyperlens structure
Author(s) -
YungJr Hung,
MinHsiung Shih,
Jia Hong Liou,
Tai Jiu-Kai
Publication year - 2010
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.18.027606
Subject(s) - birefringence , materials science , optics , wavelength , polarity (international relations) , substrate (aquarium) , refractive index , optoelectronics , physics , chemistry , biochemistry , oceanography , cell , geology
A variable birefringence effect has been observed with 1D PMMA surface gratings on a gold film substrate. By changing the operation wavelength on the Au film, the birefringence value Δn(eff) changes from positive to negative. The result verified that this uniaxial crystal-like plasmonic surface gratings showed good superlensing effect at 515 nm when PMMA width:Air width=1:1 where the absolute value of Δn(eff) is relatively large.