Light from Exotic Particle States

A new type of light-emitting diode uses emission from the radiative decay of exciton complexes

Boosting Intensity of Nanowire LEDs

UV-LEDs with a special type of shell produce five times higher light intensity than comparable LEDs

Analyzing the Lasing Threshold of Nanolasers

Systematic study of the second-order coherence properties of metal-semiconductor nanolasers

Sensitive Optical Sensors for Air Pollution

Gold disk-shaped nanoparticles emit unusual amounts of ultraviolet light

Optical Switching with Spintronics

New approach to optimize the process of data storage in future photonic integrated circuits

How to Improve Optical Tweezers

A powerful algorithm for microscopic force reconstruction retrieves the force field acting on a Brownian particle

Inkjet Printers Produce Cheap Waveguides

A micro-waveguide core is printed with titanium dioxide nanoparticles for a high refractive index

Efficiency Record for Perovskite LEDs

The perovskite layer in the LEDs shows close to 100% internal luminescence efficiency

Folding Optical Devices

New platform uses multiple metasurface elements that are fabricated in a single step

Optical Signatures of 2D Materials

Theoretical methods to compute the maximum optical properties of 2D materials