New Materials Improve Color Quality of LED

The new phosphor was discovered using a systematic, high-throughput computational approach

Metalens for Full-Color Imaging

Combining computational imaging and metasurface optics to reduce aberrations

Metasurfaces for Apochromatic Lenses

One layered lens can perfectly focus all three colors and do the work of three conventional lenses

New Lightwave-Isolation Method

A non-magnetic device free of an external power source can dramatically break transmission symmetry

Optical Sensors Dissolve in the Body

Phosphate glass fiber Bragg gratings for the development of soluble photonic sensing probes

A Topological Insulator Laser

Lasing mode exhibits topologically-protected transport without magnetic fields

Metasurface Converts Colors of Light

Structures of phased array antennas are able to circumvent the phase-matching requirement

Tuning Liquid-Crystal-Lasers

Lasing can be reversibly switched from the short-wavelength to the long-wavelength edge mode by applying a voltage

Combining Spintronics With Nanophotonics

In 2D-materials researchers converted the spin information into a predictable light signal

Fundamental Limit of Blue LEDs

Core mechanism limits the indium content in indium gallium nitride thin films – the key material for blue light emitting diodes