Continuous generation of delayed light
Reads0
Chats0
TLDR
In this paper, a four-wave mixing process is used to read-out light from atomic coherence which is continuously written and the light is continuously generated after an effective delay.Abstract:
We use a four-wave mixing process to read-out light from atomic coherence which is continuously written. The light is continuously generated after an effective delay, allowing the atomic coherence to evolve during the process. Contrary to slow-light delay, which depends on the medium optical depth, here the generation delay is determined solely by the intensive properties of the system, approaching the atomic coherence lifetime at the weak driving limit. The atomic evolution during the generation delay is further manifested in the spatial profile of the generated light due to atomic diffusion. Continuous generation of light with a long intrinsic delay can replace discrete write–read procedures when the atomic evolution is the subject of interest.read more
Citations
More filters
Journal ArticleDOI
Structured beams invariant to coherent diffusion.
TL;DR: The phase and magnitude of structured laser fields are mapped onto the spatial coherence between two internal states of warm atoms undergoing diffusion to elucidate the origin of diffusion invariance and show results for non-diffracting fields whose phase pattern is flattened.
Journal ArticleDOI
Coherent diffusion of partial spatial coherence
TL;DR: In this article, the authors developed an analytic model describing the diffusion of partially coherent beams and study it experimentally, based on a diffusion analog of the famous Van Cittert-Zernike theorem.
Journal ArticleDOI
Angular dependency of the polarization rotation in a coherent atomic medium
Journal ArticleDOI
Structured beams invariant to coherent diffusion
TL;DR: In this paper, the phase and magnitude of structured laser fields are mapped onto the spatial coherence between two internal states of warm atoms undergoing diffusion, and the field is measured after a controllable, effective, diffusion time by continuously generating light from the coherence.
References
More filters
Journal ArticleDOI
Electromagnetically induced transparency : Optics in coherent media
TL;DR: In this paper, the authors consider the atomic dynamics and the optical response of the medium to a continuous-wave laser and show how coherently prepared media can be used to improve frequency conversion in nonlinear optical mixing experiments.
Journal ArticleDOI
Optical magnetometry - eScholarship
Dmitry Budker,Michael Romalis +1 more
TL;DR: In this article, the basic principles of modern optical magnetometers, discuss fundamental limitations on their performance, and describe recently explored applications for dynamical measurements of biomagnetic fields, detecting signals in NMR and MRI, inertial rotation sensing, magnetic microscopy with cold atoms, and tests of fundamental symmetries of nature.
Journal ArticleDOI
Quantum interface between light and atomic ensembles
TL;DR: In this paper, the interaction of light with multiatom ensembles has attracted much attention as a basic building block for quantum information processing and quantum state engineering, and the authors provide a common theoretical frame for these processes, describes basic experimental techniques and media used for quantum interfaces, and reviews several key experiments on quantum memory for light, quantum entanglement between atomic enambles and light, and quantum teleportation with atomic enassembles.
Book ChapterDOI
Coherent Population Trapping in Laser Spectroscopy
TL;DR: In this article, the authors describe the coherent population trapping in laser spectroscopy and discuss the basic properties of an atomic system prepared with coherent population-trapping superposition of states.
Journal ArticleDOI
Quantum nonlinear optics with single photons enabled by strongly interacting atoms
Thibault Peyronel,Ofer Firstenberg,Ofer Firstenberg,Qiyu Liang,Sebastian Hofferberth,Alexey V. Gorshkov,Thomas Pohl,Mikhail D. Lukin,Vladan Vuletic +8 more
TL;DR: This work demonstrates a medium that is nonlinear at the level of individual quanta, exhibiting strong absorption of photon pairs while remaining transparent to single photons, paving the way for quantum-by-quantum control of light fields, including single-photon switching, all-optical deterministic quantum logic and the realization of strongly correlated many-body states of light.