Browse Physics

Electromagnetically induced transparency produced by dark states in an artificial atom might find use as a switchable microwave mirror.

Signal amplification in an optical interferometer may push the sensitivity of measurements beyond the standard quantum limit.

Simulations reveal how laser-excited persistent currents in ring-shaped aromatic molecules couple to vibrational modes.

A method called quantum smoothing has been experimentally shown to provide a mean-square measurement error that is a factor of 2 smaller than the quantum limit.

In groundbreaking low-noise laser experiments, the linewidth limit of quantum cascade lasers is confirmed to be much lower than predicted by standard laser models.

A well-known model in condensed matter physics has now been applied to ultracold atoms in an optical lattice.

A device based on photonic crystals exhibits strong optomechanical coupling.

Researchers have constructed a new high accuracy optical clock based on quantum spectroscopy of an aluminum ion.

Researchers demonstrate a new type of nonlinear diffraction with no linear analog.

A three-photon process provides a new route toward exciting surface plasmon polaritons on a flat metal surface.

In the generation of attosecond pulse trains, the polarization state of the driving pulse acts as a tunable gate.

Coupled atom cavities can emulate the many-body behavior of condensed matter systems.

Improved optical techniques may permit direct cooling of molecules to form ultracold gases, instead of cooling the atoms first.

An advance in attosecond pulse generation will make it easier to produce a single pulse.

Ultrafast optical probing of an ionized molecule with different pulse durations reveals details of the dynamics of vibrational excitations.

The demonstration of photon emission as free-electrons pass through a nanoscale grating could pave the way for a new generation of on-chip tunable light sources.

A full quantum mechanical description of how light interacts with matter in higher-harmonic generation may lead to better control over the production of isolated and sequential attosecond ultraviolet pulses.

The fastest known random number generator based on a physical process comes from intensity fluctuations in the light from a chaotic laser.

Bent light can do more than render objects invisible—it can make them appear as something else.

Is the intracavity field of a laser necessarily a coherent state?