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Three-dimensional optical metamaterial with a negative refractive index
Bulk optical metamaterials open up prospects for studies of 3D optical effects and applications associated with NIMs and zero-index materials such as reversed Doppler effect, superlenses, optical tunnelling devices, compact resonators and highly directional sources.
Transport and Anderson localization in disordered two-dimensional photonic lattices
The experimental observation of Anderson localization in a perturbed periodic potential is reported: the transverse localization of light caused by random fluctuations on a two-dimensional photonic lattice, demonstrating how ballistic transport becomes diffusive in the presence of disorder, and that crossover to Anderson localization occurs at a higher level of disorder.
Plasmon lasers at deep subwavelength scale
The experimental demonstration of nanometre-scale plasmonic lasers, generating optical modes a hundred times smaller than the diffraction limit are reported, opening up new avenues in the fields of active photonic circuits, bio-sensing and quantum information technology.
Optical Negative Refraction in Bulk Metamaterials of Nanowires
Bulk metamaterials made of nanowires that show negative refraction for all incident angles in the visible region are reported, resulting in a low-loss and a broad-band propagation at visible frequencies.
An optical cloak made of dielectrics.
The optical 'carpet' cloak is designed using quasi-conformal mapping to conceal an object that is placed under a curved reflecting surface by imitating the reflection of a flat surface and enables broadband and low-loss invisibility at a wavelength range of 1,400-1,800 nm.
Confinement and propagation characteristics of subwavelength plasmonic modes
We have studied subwavelength confinement of the surface plasmon polariton modes of various plasmonic waveguides and examined their relative merits using a graphical parametric representation of
All-angle negative refraction and imaging in a bulk medium made of metallic nanowires in the visible region.
It is theoretically demonstrated that all-angle negative refraction and imaging can be implemented by metallic nanowires embedded in a dielectric matrix with low losses, allowing potential applications in photonic devices.
Light-driven nanoscale plasmonic motors.
A nanoscale plasmonic structure that can, when illuminated with linearly polarized light, generate a rotational force that is capable of rotating a silica microdisk that is 4,000 times larger in volume is demonstrated.
Compressing surface plasmons for nano-scale optical focusing.
This work experimentally demonstrate and quantitatively measure the nanofocusing of surface plasmon polaritons in tapered metallic V-grooves down to the deep subwavelength scale - approximately lambda/40 at wavelength of 1.5 micron - with almost 50% power efficiency.
Split ring resonator sensors for infrared detection of single molecular monolayers. Appl. Phys. Lett. 95, 043113
We report a surface enhanced molecular detection technique with zeptomole sensitivity that relies on resonant coupling of plasmonic modes of split ring resonators and infrared vibrational modes of a