Lasers Produce High-Energy Terahertz Pulses

Terahertz radiation is to open the way for a new generation of compact particle accelerators

Infrared Frequency Comb Measures Biological Signatures

New approach unites a compact source of phase-stable, single-cycle, mid-infrared pulses with room temperature electric field

Nanolasers on Silicon

Tiny light-emitting nanolasers can be integrated into silicon chip design

Organic Laser Diodes Move from Dream to Reality

Thorough characterization demonstrates lasing by direct electrical stimulation of an organic film is possible

High-Quality Single Photons for Quantum Computing

New dual-cavity design emits more single photons at room temperature

Smallest Pixels Ever Created for Color-Changing Buildings

Nanopixels are compatible with roll-to-roll fabrication on flexible plastic films

All-Fiber Device Simplifies Quantum Key Distribution

Robust encoder switches polarization one billion times a second

Light Dynamically Twists an Electron’s Wave Function

Ultrafast vortex electron beams can be used to encode and manipulate quantum information

A Perfect Gain Medium for Lasers

Weyl semimetals could suppress Auger recombinations for new types of long-wavelength lasers

Simple Color Tuning of LED Bulbs

Tuning the color of a GaN LED by changing the time sequence at which the operation current is provided to the device