Optoelectronics Without Glass

New plasmonic modulator made of a single layer of gold using a substrate-independent process

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

Improving Optical Traps for Ions

Lifetime of ions in a visible optical dipole trap is increased by two orders of magnitude

The World’s Shortest Laser Pulse

Researchers succeeded in shortening the pulse duration of an X‑ray laser to only 43 attoseconds

Sensing Flexural Motion With Quantum Dots

Quantum dot emission line frequencies as a function of time due to vibrations of the photonic crystal membrane

Random Lasing in an Optical Fiber

A disorder induced localized states form isolated local channels to make the output laser beam highly directional

Silicon Photonic Chip Detects Gas Leaks

Low-cost, robust spectrometer on a chip could operate for years with almost no maintenance

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