Browse Physics

Theory shows that three-level atoms can overcome intrinsic problems with two-level systems in controlling the flow of photons.

A Fabry-Pérot cavity exhibits the same behavior when an atom replaces a mirror.

In nanowire form, semiconductor lasers that rely on the coherent scattering of polaritons produce light with less energy.

By applying environmental noise to a photon detector, researchers have identified the boundary where the device switches from a quantum device to a classical one.

Applying x-ray diffraction microscopy to magnetic systems yields simultaneous spatial and temporal information.

Experiments confirm the rapid increase in radiative heat transfer that occurs when two surfaces are brought into close proximity.

Dense clouds of cold atoms have been produced in thin optical fibers.

Observations of single photons traveling through cold atomic gases confirm that information can only travel as fast as the speed of light.

A two-dimensional array of silicon rods is theoretically shown to bend light around tight corners.

Experiments confirm a decades-old prediction that carefully tailoring the shape of a barrier lets light of many colors pass through it without reflection.

A new laser design confines light with an array of air holes that resembles the porous structures in feathers.

Quick detection of photogenerated electrons in a quantum dot may lead to a better method to transfer quantum information between optical and electrical media.

A new photon-counting technique is proposed for detecting excitations of an ultracold gas of atoms.

Optical spectroscopy in quantum dots finds new ways to explore an old many-body problem.

The voltage created in inclined thin anisotropic films illuminated by laser light is significantly affected by a photovoltaic component.

Scientists have for the first time observed two-photon absorption with x rays.

Nonclassical light may provide a more efficient readout mechanism than its classical counterpart in the regime of few photons.

A carpet cloak hides a chunky object sitting on a mirror, reflecting light as though only the mirror were there.

New results predict that a well-known phase transition in two dimensions should also be observable optically.

A new plasmonic route to long-distance entanglement is proposed.