Atom lithography was invented in the last decade at Bell Labs, where the possibility of producing nanostructures with laser manipulated neutral Na atoms was demonstrated for the first time [1]. Atom lithography [2] is in principle similar to optical lithography, the main difference being that the roles of light and matter are reversed each other. While in optical lithography matter (material ma...

We demonstrate spin squeezing in a room temperature ensemble of approximately 10(12) cesium atoms using their internal structure, where the necessary entanglement is created between nuclear and electronic spins of each individual atom. This state provides improvement in measurement sensitivity beyond the standard quantum limit for quantum memory experiments and applications in quantum metrology...

We report the observation of collective-emission-induced, velocity-dependent light forces. One-third of a falling sample containing 3 x 10(6) cesium atoms illuminated by a horizontal standing wave is stopped by cooperatively emitting light into a vertically oriented, confocal resonator. We observe decelerations up to 1500 m/s(2) and cooling to temperatures as low as 7 microK, well below the fre...

When ohsewed in a cesium beum frequency standard, the hyperfine transition frequency of the atom^ differs slightEyfrom the invariant trunsition frequency of the unperturbed atoms at rest. The vurious physical and technical origins of the frequency oflets are stated, They relate to fundumentul physical eflects, to the method of probing the atomic resonance and to the frequenq control of the slav...

A fully relativistic approach to calculating photoionization and photon-atom scattering cross sections for quasi one-electron atoms is presented. An extensive set of have been calculated alkali atoms: lithium, sodium, potassium, rubidium cesium. The importance effects core polarization on the depth position Cooper minimum in section investigated. Good agreement was found with previous Dirac-bas...

On-demand and efficient storage of photons is an essential element in quantum information processing long-distance communication. Most the memory protocols require bulk systems order to store photons. However, with advent integrated photonic chip platforms for processing, on-chip memories are highly sought after. In this paper, we propose a protocol multimode using only single-atom-cavity setup...

Based on Autler–Townes splitting and AC Stark shifts, we present a Rydberg atom-based receiver for determining the amplitude modulation (AM) frequency among wideband carrier range utilizing cesium atomic vapor cell. To verify this approach, measured signal-to-noise ratio data capacity with 10 kHz AM in from 2 GHz to 18 GHz. Without changing lasers, working band can be easily extended higher by ...

The sub-wavelength optical confinement and low optical loss of nanophotonic devices dramatically enhances the interaction between light and matter within these structures. When nanophotonic devices are combined with an efficient optical coupling channel, nonlinear optical behavior can be observed at low power levels in weakly-nonlinear materials. In a similar vein, when resonant atomic systems ...