Three-dimensional atom localization with high-precision and high-resolution via a microwave field in an atomic system
About: This article is published in Laser Physics.The article was published on 2021-10-01. It has received None citations till now. The article focuses on the topics: Atom (order theory) & Field (physics).
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1,280 citations
12 May 2000
TL;DR: It is shown how to write arbitrary 2D patterns by using the nonclassical photon-number states method, and a factor of N = 2 can be achieved easily with entangled photon pairs generated from optical parametric down-conversion.
Abstract: Summary form only given. It has been known for some time that entangled photon pairs, such as generated by spontaneous parametric down conversion, have unusual imaging characteristics with sub-shot-noise interferometric phase measurement. In fact, Fonseca, et al., recently demonstrated resolution of a two-slit diffraction patterned at half the Rayleigh limit in a coincidence counting experiment. What we show is that this type of effect is possible not only in coincidence counting experiments, but also in real two-photon absorbing systems, such as those used in classical interferometric lithography. In particular, we will demonstrate that quantum entanglement is the resource that allows sub-diffraction limited lithography.
1,255 citations
TL;DR: The spatially dependent de-excitation of a beam of metastable argon atoms, traveling through an optical standing wave, produced a periodic array of localized metastable atoms with position and momentum spreads approaching the limit stated by the Heisenberg uncertainty principle.
Abstract: The spatially dependent de-excitation of a beam of metastable argon atoms, traveling through an optical standing wave, produced a periodic array of localized metastable atoms with position and momentum spreads approaching the limit stated by the Heisenberg uncertainty principle. Silicon and silicon dioxide substrates placed in the path of the atom beam were patterned by the metastable atoms. The de-excitation of metastable atoms upon collision with the surface promoted the deposition of a carbonaceous film from a vapor-phase hydrocarbon precursor. The resulting patterns were imaged both directly and after chemical etching. Thus, quantum-mechanical steady-state atom distributions can be used for sub-0.1-micrometer lithography.
243 citations
TL;DR: In this paper, the authors show that a three-level ε-Lambda-type atom interacting with a classical standing-wave field resonantly coupling one transition and a weak probe laser field resonant coupling the second transition can be localized provided the population of the upper state is observed.
Abstract: We show that a three-level $\ensuremath{\Lambda}$-type atom interacting with a classical standing-wave field resonantly coupling one transition and a weak probe laser field resonantly coupling the second transition can be localized provided the population of the upper state is observed.
195 citations
TL;DR: The position of an atom passing through a standard light wave is localized by making a quadrature phase measurement on the light field, which can be thought of as the creation of a virtual slit for the atom by the field measurement.
Abstract: The position of an atom passing through a standard light wave is localized by making a quadrature phase measurement on the light field. This localization can be thought of as the creation of a virtual slit (or slits) for the atom by the field measurement. Diffraction and interference behavior may be observed in the far field.
177 citations