Concept for a Directional Color Filter

Nanoscale devices divide incident white light into its component colors based on the direction of illumination

Butterfly Wing Inspires Photovoltaics

Light absorption can be enhanced by up to 200 percent with optimized nanostructures

How to Control Luminescence of C-Dots

Optical and photocatalytic properties of carbon dots can be tuned by nitrogen atoms introduced into their structure

Nano-CT Device Creates High-Resolution 3D-X-Rays

New laboratory CT device to generate high-resolution 3D data without requiring synchrotron radiation facilities

Insect Eyes Inspire Antireflective Coating

Microspheres capture up to 99 percent of light, ranging from ultraviolet into the near infrared

Metasurfaces Form Vortex Beams

Any input polarization of light can result in any orbital angular momentum output

Optical Chaos to Control the Momentum of Light

Chaotic scattering of light within a deformed structure transforms optical modes within a few picoseconds

Optical Control of Valley Polarization

The valley populations can be directly controlled using circularly polarized optical excitation and emission

Printed Droplets as Light Traps

Fabrication technique for highly sensitive sensors to detect minute amounts of biomolecules

Bridging the Terahertz Gap

Optical frequency comb offers a convenient way to generate elusive terahertz frequencies