Optical chiral metamaterials have recently attracted considerable attention because they
offer new and exciting opportunities for fundamental research and practical applications …

Electromagnetic metamaterials are composed of periodically arranged artificial structures.
They show peculiar properties, such as negative refraction and super-lensing, which are not …

We report that the classical phenomenon of optical activity, which is traditionally associated
with chirality (helicity) of organic molecules, proteins, and inorganic structures, can be …

Coupled split-ring-resonator metamaterials have previously been shown to exhibit large
coupling effects, which are a prerequisite for obtaining large effective optical activity. By a …

We summarize the progress in the development and application of chiral metamaterials.
After a brief review of the salient features of chiral metamaterials, such as giant optical …

Following a recent theoretical suggestion and microwave experiments, we fabricate
photonic metamaterials composed of pairs of twisted gold crosses using two successive …

Localization of optical excitations within subwavelength areas of a random metal-dielectric
film is observed using near-field scanning optical microscopy. This effect is attributed to …

After the prediction that strong enough optical activity may result in negative refraction and
negative reflection, more and more artificial chiral metamaterials were designed and …

The control of the optical activity and ellipticity of a medium has drawn considerable
attention due to the recent developments in metamaterial design techniques and a deeper …

Active control of polarization states of electromagnetic waves is highly desirable because of
its diverse applications in information processing, telecommunications, and spectroscopy …