Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)

Coherent patterning of matter waves with subwavelength localization

J. Mompart, V. Ahufinger, G. Birkl

Published Jun 1, 2009• 0 citations
Publisher

Abstract

In this work, the authors proposed a novel state selective atom localization and patterning scheme named subwavelength localization via adiabatic passage (SLAP) that consists in coupling two partially overlapping and spatially structured laser fields to three internal levels of the matter wave yielding state-selective localization at those positions where the adiabatic passage process does not occur. Compared to the coherent population trapping (CPT) based techniques, the SLAP technique presents several important advantages. The paper describes the SLAP technique to coherently achieve state-selective patterning and addressing of matter waves and analyze its potential implementation for nanolithography with an atomic beam of metastable Ne and for coherent patterning of a two-component87Rb BEC.

DOI
10.1109/cleoe-eqec.2009.5191640

Related papers

Coherent patterning of matter waves with subwavelength localization

J. Mompart, V. Ahufinger, G. Birkl

We propose the subwavelength localization via adiabatic passage (SLAP) technique to coherently achieve state-selective patterning of matter waves well beyond the diffraction limit. The SLAP technique consists in coupling two partially overlapping and spatially structured laser fields to three internal levels of the matter wave yielding state-selective localization at those positions where the adiabatic passage process does not occur. We show that by means of this technique matter wave localization down to the single nanometer scale can be achieved. We analyze in detail the potential implementation of the SLAP technique for nanolithography with an atomic beam of metastable ${\text{Ne}}^{\ensuremath{\ast}}$ and for coherent patterning of a two-component $^{87}\text{R}\text{b}$ Bose-Einstein condensate.

arXiv:0811.3409•Physical Review A•May 28, 2009•65 citations

Single-site addressing of ultracold atoms beyond the diffraction limit via position-dependent adiabatic passage

Daniel Viscor, J. L. Rubio, G. Birkl +2 more

We propose a single-site addressing implementation based on the subwavelength localization via adiabatic passage (SLAP) technique. We consider a sample of ultracold neutral atoms loaded into a two-dimensional optical lattice with one atom per site. Each atom is modeled by a three-level $\ensuremath{\Lambda}$ system in interaction with a pump and a Stokes laser pulse. Using a pump field with a node in its spatial profile, the atoms at all sites are transferred from one ground state of the system to the other via stimulated Raman adiabatic passage, except the one at the position of the node that remains in the initial ground state. This technique allows for the preparation, manipulation, and detection of atoms with a spatial resolution better than the diffraction limit, which either relaxes the requirements on the optical setup used or extends the achievable spatial resolution to lattice spacings smaller than accessible to date. In comparison to techniques based on coherent population trapping, SLAP gives a higher addressing resolution and has additional advantages such as robustness against parameter variations, coherence of the transfer process, and the absence of photon induced recoil. Additionally, the advantages of our proposal with respect to adiabatic spin-flip techniques are highlighted. Analytic expressions for the achievable addressing resolution and efficiency are derived and compared to numerical simulations for ${}^{87}$Rb atoms in state-of-the-art optical lattices.

arXiv:1301.1546•Physical Review A•Dec 17, 2012•14 citations

Spatially strongly confined atomic excitation via a two dimensional stimulated Raman adiabatic passage

Hamid Reza Hamedi, Giedrius Žlabys, V. Ahufinger +3 more

We consider a method of sub-wavelength superlocalization and patterning of atomic matter waves via a two dimensional stimulated Raman adiabatic passage (2D STIRAP) process. An atom initially prepared in its ground level interacts with a doughnut-shaped optical vortex pump beam and a traveling wave Stokes laser beam with a constant (top-hat) intensity profile in space. The beams are sent in a counter-intuitive temporal sequence, in which the Stokes pulse precedes the pump pulse. The atoms interacting with both the traveling wave and the vortex beam are transferred to a final state through the 2D STIRAP, while those located at the core of the vortex beam remain in the initial state, creating a super-narrow nanometer scale atomic spot in the spatial distribution of ground state atoms. By numerical simulations we show that the 2D STIRAP approach outperforms the established method of coherent population trapping, yielding much stronger confinement of atomic excitation. Numerical simulations of the Gross-Pitaevskii equation show that using such a method one can create 2D bright and dark solitonic structures in trapped Bose-Einstein condensates (BECs). The method allows one to circumvent the restriction set by the diffraction limit inherent to conventional methods for formation of localized solitons, with a full control over the position and size of nanometer resolution defects.

arXiv:2111.03750•Optics Express•Mar 10, 2022•18 citations

Nanoscale resolution for fluorescence microscopy via adiabatic passage

J. L. Rubio, Daniel Viscor, V. Ahufinger +1 more

We propose the use of the subwavelength localization via adiabatic passage technique for fluorescence microscopy with nanoscale resolution in the far field. This technique uses a Λ-type medium coherently coupled to two laser pulses: the pump, with a node in its spatial profile, and the Stokes. The population of the Λ system is adiabatically transferred from one ground state to the other except at the node position, yielding a narrow population peak. This coherent localization allows fluorescence imaging with nanometer lateral resolution. We derive an analytical expression to asses the resolution and perform a comparison with the coherent population trapping and the stimulated-emission-depletion techniques.

arXiv:1504.03171•Optics Express•Sep 12, 2013•7 citations

Coherent Manipulation of Atomic Wave Packets by Adiabatic Transfer

S. A. Kulin, Bruno Saubaméa, E. Peik +4 more

We use laser induced adiabatic passage to coherently manipulate the atomic wave packets resulting from subrecoil laser cooling in one, two, and three dimensions by velocity selective coherent population trapping. Using metastable helium atoms, we demonstrate adiabatic transfer into a single wave packet or into two coherent wave packets, while retaining the subrecoil momentum dispersion of the initial wave packets. The efficiency of the transfer is nearly perfect in one and two dimensions, and of the order of 75% in three dimensions. To a large extent, the direction of the momentum and the internal state of the atoms described by each of the final wave packets can be chosen at will.

Physical Review Letters•Jun 2, 1997•51 citations

Subwavelength atom localization via coherent population trapping

Kishore T. Kapale, G. S. Agarwal

We present an atom-localization scheme based on CPT driven by a standing-wave field. The population in one of the ground states experiences a fringe pattern similar to that of a Fabry-Perot interferometer causing atom localization.

Frontiers in Optics•Jan 1, 2006•5 citations
In this work, the authors proposed a novel state selective atom localization and patterning scheme named subwavelength localization via adiabatic passage (SLAP) that consists in coupling two partially overlapping and spatially structured laser fields to three internal levels of the matter wave yielding state-selective localization at those positions where the adiabatic passage process does not occur. Compared to the coherent population trapping (CPT) based techniques, the SLAP technique presents several important advantages. The paper describes the SLAP technique to coherently achieve state-selective patterning and addressing of matter waves and analyze its potential implementation for nanolithography with an atomic beam of metastable Ne and for coherent patterning of a two-component87Rb BEC.
We propose the subwavelength localization via adiabatic passage (SLAP) technique to coherently achieve state-selective patterning of matter waves well beyond the diffraction limit. The SLAP technique consists in coupling two partially overlapping and spatially structured laser fields to three internal levels of the matter wave yielding state-selective localization at those positions where the adiabatic passage process does not occur. We show that by means of this technique matter wave localization down to the single nanometer scale can be achieved. We analyze in detail the potential implementation of the SLAP technique for nanolithography with an atomic beam of metastable ${\text{Ne}}^{\ensuremath{\ast}}$ and for coherent patterning of a two-component 87Rb^{87}\text{R}\text{b}87Rb Bose-Einstein condensate.
We propose a single-site addressing implementation based on the subwavelength localization via adiabatic passage (SLAP) technique. We consider a sample of ultracold neutral atoms loaded into a two-dimensional optical lattice with one atom per site. Each atom is modeled by a three-level $\ensuremath{\Lambda}$ system in interaction with a pump and a Stokes laser pulse. Using a pump field with a node in its spatial profile, the atoms at all sites are transferred from one ground state of the system to the other via stimulated Raman adiabatic passage, except the one at the position of the node that remains in the initial ground state. This technique allows for the preparation, manipulation, and detection of atoms with a spatial resolution better than the diffraction limit, which either relaxes the requirements on the optical setup used or extends the achievable spatial resolution to lattice spacings smaller than accessible to date. In comparison to techniques based on coherent population trapping, SLAP gives a higher addressing resolution and has additional advantages such as robustness against parameter variations, coherence of the transfer process, and the absence of photon induced recoil. Additionally, the advantages of our proposal with respect to adiabatic spin-flip techniques are highlighted. Analytic expressions for the achievable addressing resolution and efficiency are derived and compared to numerical simulations for 87{}^{87}87Rb atoms in state-of-the-art optical lattices.
We consider a method of sub-wavelength superlocalization and patterning of atomic matter waves via a two dimensional stimulated Raman adiabatic passage (2D STIRAP) process. An atom initially prepared in its ground level interacts with a doughnut-shaped optical vortex pump beam and a traveling wave Stokes laser beam with a constant (top-hat) intensity profile in space. The beams are sent in a counter-intuitive temporal sequence, in which the Stokes pulse precedes the pump pulse. The atoms interacting with both the traveling wave and the vortex beam are transferred to a final state through the 2D STIRAP, while those located at the core of the vortex beam remain in the initial state, creating a super-narrow nanometer scale atomic spot in the spatial distribution of ground state atoms. By numerical simulations we show that the 2D STIRAP approach outperforms the established method of coherent population trapping, yielding much stronger confinement of atomic excitation. Numerical simulations of the Gross-Pitaevskii equation show that using such a method one can create 2D bright and dark solitonic structures in trapped Bose-Einstein condensates (BECs). The method allows one to circumvent the restriction set by the diffraction limit inherent to conventional methods for formation of localized solitons, with a full control over the position and size of nanometer resolution defects.
We propose the use of the subwavelength localization via adiabatic passage technique for fluorescence microscopy with nanoscale resolution in the far field. This technique uses a Λ-type medium coherently coupled to two laser pulses: the pump, with a node in its spatial profile, and the Stokes. The population of the Λ system is adiabatically transferred from one ground state to the other except at the node position, yielding a narrow population peak. This coherent localization allows fluorescence imaging with nanometer lateral resolution. We derive an analytical expression to asses the resolution and perform a comparison with the coherent population trapping and the stimulated-emission-depletion techniques.
We use laser induced adiabatic passage to coherently manipulate the atomic wave packets resulting from subrecoil laser cooling in one, two, and three dimensions by velocity selective coherent population trapping. Using metastable helium atoms, we demonstrate adiabatic transfer into a single wave packet or into two coherent wave packets, while retaining the subrecoil momentum dispersion of the initial wave packets. The efficiency of the transfer is nearly perfect in one and two dimensions, and of the order of 75% in three dimensions. To a large extent, the direction of the momentum and the internal state of the atoms described by each of the final wave packets can be chosen at will.