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

Physical review. B./Physical review. B

On the use of twisted photons for spectroscopy of impurity centers in crystals

V. Hizhnyakov, Viktor E. Peet, Yu.V. Orlovskii

Published Jan 9, 2018• 1 citation
Publisher

Abstract

Absorption of twisted photons for quadrupole $^{4}f\text{\ensuremath{-}}^{4}f$ transitions in $\mathrm{R}{\mathrm{e}}^{3+}$ impurity ions in micro- and macrocrystals is considered. Two types of twisted photon beams---the Laguerre-Gaussian and the Bessel-Gaussian beams---are considered and compared. Twisted photons have a nonzero transverse field gradient, which leads to selection rules for quadrupole transitions other than those in the case of the usual quadrupole transitions caused by a longitudinal field gradient. This allows one to observe new spectral lines which are absent in the usual absorption spectra. For microcrystals placed at the beam axis of twisted photons the otherwise dominating forced dipole $^{4}f\text{\ensuremath{-}}^{4}f$ transitions are absent, which simplifies the observation of new spectral lines.

DOI
10.1103/physrevb.97.035115

Related papers

Excitation of an Electric Octupole Transition by Twisted Light

R. Lange, Nils Huntemann, A. A. Peshkov +2 more

We study the coherent excitation of the ^{2}S_{1/2}→^{2}F_{7/2} electric octupole (E3) transition by twisted light modes with a single ^{171}Yb^{+} ion in the dark center of a vortex beam. The intensity distribution of the beam is mapped as a function of the ion's position by measuring the light shift on an auxiliary electric quadrupole transition. In the center of the vortex beam, we observe excitation of the E3 transition with a fivefold reduced light shift in comparison to excitation by plane wave radiation for the same Rabi frequency. We measure the excitation probabilities for Laguerre-Gaussian twisted light modes of first and second order for different polarization patterns at various orientations of the ion quantization axis with respect to the beam propagation vector. We compare the experimental results with theoretical predictions and find good qualitative agreement.

Physical Review Letters•Dec 12, 2022•34 citations

Detecting photons in the dark region of Laguerre-Gauss beams

В. В. Климов, Daniel Bloch, M. Ducloy +1 more

We show that a photon detector, sensitive to the magnetic field or to the gradient of electric field, can help to characterize the quantum properties of spatially-dependent optical fields. We discuss the excitation of an atom through magnetic dipole or electric quadrupole transitions with the photons of a Bessel beam or a Laguerre-Gauss (LG) beams. These spiral beams are shown to be not true hollow beams, due to the presence of magnetic fields and gradients of electric fields on beam axis. This approach paves the way to an analysis at the quantum level of the propagating light beams having a complicated spatial structure.

Optics Express•May 26, 2009•29 citations

Twisted-Light–Ion Interaction: The Role of Longitudinal Fields

G. F. Quinteiro, Ferdinand Schmidt‐Kaler, Christian Tomás Schmiegelow

The propagation of light beams is well described using the paraxial approximation, where field components along the propagation direction are usually neglected. For strongly inhomogeneous or shaped light fields, however, this approximation may fail, leading to intriguing variations of the light-matter interaction. This is the case of twisted light having opposite orbital and spin angular momenta. We compare experimental data for the excitation of a quadrupole transition in a single trapped ^{40}Ca^{+} ion from Schmiegelow et al. [Nat. Commun. 7, 12998 (2016)NCAOBW2041-172310.1038/ncomms12998] with a complete model where longitudinal components of the electric field are taken into account. Our model matches the experimental data and excludes by 11 standard deviations the approximation of a complete transverse field. This demonstrates the relevance of all field components for the interaction of twisted light with matter.

arXiv:1707.04776•Physical Review Letters•Dec 20, 2017•91 citations

Detection of Spiral photons in Quantum Optics

В. В. Климов, Bloch, D., M. Ducloy +1 more

We show that a new type of photon detector, sensitive to the gradients of electromagnetic fields, should be a useful tool to characterize the quantum properties of spatially-dependent optical fields. As a simple detector of such a kind, we propose using magnetic dipole or electric quadrupole transitions in atoms or molecules and apply it to the detection of spiral photons in Laguerre-Gauss (LG) beams. We show that LG beams are not true hollow beams, due to the presence of magnetic fields and gradients of electric fields on beam axis. This approach paves the way to an analysis at the quantum level of the spatial structure and angular momentum properties of singular light beams.

arXiv:0802.0560•Feb 5, 2008•0 citations

Detecting of photons in optical fields of complicated spatial structure

В. В. Климов, Daniel Bloch, M. Ducloy +1 more

We show that a photon detector, sensitive to the gradients of electromagnetic fields, or to magnetic fields, should be a useful tool to characterize the quantum properties of spatially-dependent optical fields. We discuss the excitation of an atom on a magnetic dipole or electric quadrupole transitions with the spiral photons of a Laguerre-Gauss (LG) or Bessel beams. We show that these beams are not true hollow beams, due to the presence of magnetic fields and gradients of electric fields on beam axis. This approach paves the way to an analysis at the quantum level of the spatial structure and angular momentum properties of singular light beams.

arXiv:0805.1697•May 12, 2008•1 citation

Two-photon spectroscopy in GdAlO3

Luiz A. O. Nunes, Sebastião Pádua, J. C. Castro

Two-photon absorption spectroscopy is used to study f\ensuremath{\rightarrow}f transitions of the ${\mathrm{Gd}}^{3+}$ ion in pure ${\mathrm{GdAlO}}_{3}$ crystals. This technique allows us to observe the electronic transitions far in the ultraviolet without background as opposed to conventional spectroscopy. We observed several transitions that violated the angular-momentum selection rules \ensuremath{\Delta}J\ensuremath{\le}2.

Physical review. B, Condensed matter•Mar 1, 1990•1 citation
Absorption of twisted photons for quadrupole 4f\ensuremath-4f^{4}f\text{\ensuremath{-}}^{4}f4f\ensuremath-4f transitions in Re3+\mathrm{R}{\mathrm{e}}^{3+}Re3+ impurity ions in micro- and macrocrystals is considered. Two types of twisted photon beams---the Laguerre-Gaussian and the Bessel-Gaussian beams---are considered and compared. Twisted photons have a nonzero transverse field gradient, which leads to selection rules for quadrupole transitions other than those in the case of the usual quadrupole transitions caused by a longitudinal field gradient. This allows one to observe new spectral lines which are absent in the usual absorption spectra. For microcrystals placed at the beam axis of twisted photons the otherwise dominating forced dipole 4f\ensuremath-4f^{4}f\text{\ensuremath{-}}^{4}f4f\ensuremath-4f transitions are absent, which simplifies the observation of new spectral lines.
We study the coherent excitation of the ^{2}S_{1/2}→^{2}F_{7/2} electric octupole (E3) transition by twisted light modes with a single ^{171}Yb^{+} ion in the dark center of a vortex beam. The intensity distribution of the beam is mapped as a function of the ion's position by measuring the light shift on an auxiliary electric quadrupole transition. In the center of the vortex beam, we observe excitation of the E3 transition with a fivefold reduced light shift in comparison to excitation by plane wave radiation for the same Rabi frequency. We measure the excitation probabilities for Laguerre-Gaussian twisted light modes of first and second order for different polarization patterns at various orientations of the ion quantization axis with respect to the beam propagation vector. We compare the experimental results with theoretical predictions and find good qualitative agreement.
We show that a photon detector, sensitive to the magnetic field or to the gradient of electric field, can help to characterize the quantum properties of spatially-dependent optical fields. We discuss the excitation of an atom through magnetic dipole or electric quadrupole transitions with the photons of a Bessel beam or a Laguerre-Gauss (LG) beams. These spiral beams are shown to be not true hollow beams, due to the presence of magnetic fields and gradients of electric fields on beam axis. This approach paves the way to an analysis at the quantum level of the propagating light beams having a complicated spatial structure.
The propagation of light beams is well described using the paraxial approximation, where field components along the propagation direction are usually neglected. For strongly inhomogeneous or shaped light fields, however, this approximation may fail, leading to intriguing variations of the light-matter interaction. This is the case of twisted light having opposite orbital and spin angular momenta. We compare experimental data for the excitation of a quadrupole transition in a single trapped ^{40}Ca^{+} ion from Schmiegelow et al. [Nat. Commun. 7, 12998 (2016)NCAOBW2041-172310.1038/ncomms12998] with a complete model where longitudinal components of the electric field are taken into account. Our model matches the experimental data and excludes by 11 standard deviations the approximation of a complete transverse field. This demonstrates the relevance of all field components for the interaction of twisted light with matter.
We show that a new type of photon detector, sensitive to the gradients of electromagnetic fields, should be a useful tool to characterize the quantum properties of spatially-dependent optical fields. As a simple detector of such a kind, we propose using magnetic dipole or electric quadrupole transitions in atoms or molecules and apply it to the detection of spiral photons in Laguerre-Gauss (LG) beams. We show that LG beams are not true hollow beams, due to the presence of magnetic fields and gradients of electric fields on beam axis. This approach paves the way to an analysis at the quantum level of the spatial structure and angular momentum properties of singular light beams.
We show that a photon detector, sensitive to the gradients of electromagnetic fields, or to magnetic fields, should be a useful tool to characterize the quantum properties of spatially-dependent optical fields. We discuss the excitation of an atom on a magnetic dipole or electric quadrupole transitions with the spiral photons of a Laguerre-Gauss (LG) or Bessel beams. We show that these beams are not true hollow beams, due to the presence of magnetic fields and gradients of electric fields on beam axis. This approach paves the way to an analysis at the quantum level of the spatial structure and angular momentum properties of singular light beams.
Two-photon absorption spectroscopy is used to study f\ensuremath{\rightarrow}f transitions of the Gd3+{\mathrm{Gd}}^{3+}Gd3+ ion in pure GdAlO3{\mathrm{GdAlO}}_{3}GdAlO3​ crystals. This technique allows us to observe the electronic transitions far in the ultraviolet without background as opposed to conventional spectroscopy. We observed several transitions that violated the angular-momentum selection rules \ensuremath{\Delta}J\ensuremath{\le}2.