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

Soviet Journal of Quantum Electronics

Multistage sensitization of4F9/2→4I11/2and4F9/2→4I13/2lasing transitions in Er3+ions in a BaYb2F8crystal

Boris M. Antipenko, Artur A Mak, O. B. Raba, B V Sinitsyn, T. V. Uvarova

Published Aug 31, 1982• 3 citations
Publisher

Abstract

A new method was developed for determining the mechanism of anti-Stokes filling of luminescent levels of an activator in a rare-earth crystal. An investigation was made of the dependences of the absolute populations of the 4 I 13/2 , 4 I 11/2 , 4 F 9/2 , 4 S 3/2 , H 9/2 , 4 G 11/2 , and 2 P 3/2 levels of Er 3+ in a BaYb 2 F 8 crystal on the energy absorbed within the Yb 3+ sensitizer band. The mechanisms of anti-Stokes filling of the 4 I 13/2 , 4 F 9/2 , 4 S 3/2 , and 2 H 9/2 levels of Er 3+ were determined under conditions of weak (1 mJ/cm 3 ) and strong (∼10 J/cm 3 ) pumping.

DOI
10.1070/qe1982v012n08abeh005777

Related papers

Optical Modulation of Anti-Stokes Luminescence in CaF2:Er Crystals

А. Н. Грузинцев

Abstract Emission and visible photoluminescence excitation spectra of CaF2:Er (0.5 at %) crystals have been studied under different optical pumping conditions. The results demonstrate that anti-Stokes luminescence of the erbium-doped crystals has higher intensity in the case of pumping of the 4I13/2 metastable state of the dopant. Resonance IR photon wavelengths have been determined for two-photon excitation of visible emission in CaF2:Er. A method has been developed for the optical modulation of anti-Stokes luminescence, which allows the nature of the corresponding electron transitions in emission centers to be identified.

Inorganic Materials•Jul 1, 2020•2 citations

Two-photon excitation of the anti-Stokes photoluminescence of Ca1–x Er x F2 + x crystals

А. Н. Грузинцев, Denis N. Karimov

Crystals of the composition Ca1–x Er x F2 + x (0 < x ≤ 0.02) have been grown from the melt by the Bridgman method. The absorption, luminescence excitation, and photoluminescence spectra of this material in the case of the Stokes and anti-Stokes mechanisms of the optical excitation from two radiation sources simultaneously have been analyzed. It has been found that the visible luminescence manifests itself upon sequential absorption of two resonance infrared photons with different energies. This effect is associated with the fact that, in this material, there are metastable states of the excited levels 4 I 11/2 of the Er3+ ions, from which transitions to higher energy levels occur due to the absorption of infrared photons.

Physics of the Solid State•Jan 1, 2017•3 citations

Lasing in Y3Al5O12:Er3+(λ = 2.94 μm) crystals as a result of selective excitation of the lower active level

V I Zhekov, Vladimir A. Lobachev, T. M. Murina +3 more

Lasing was induced in Y1.5Er1.5Al5O12 (λ = 2.94 μm) crystals by selective pumping of the electronic–vibrational wing of the 4I15/2–4I13/2 transition. A population inversion was established in this YAG:Er3+ laser by a strong interaction between the excited Er3+ ions at the 4I13/2 level and the transfer of energy from the lower active level to the upper one in accordance with the 4I13/2–4I9/2, 4I13/2–4I15/2 scheme.

Soviet Journal of Quantum Electronics•Jun 30, 1989•5 citations

Spectrum of stimulated emission due to self-saturating transitions in high-concentration media

V I Zhekov, Vladimir A. Lobachev, T. M. Murina +1 more

A study was made of various cases of a population inversion between the 4I11/2 and 4I13/2 levels in Y3Al5O12:Er3+ crystals. It is found that when nonradiative transitions from the upper levels to the active levels by the mechanism of multiphonon energy transfer are more probable, laser action occurs due to transitions between the Stark components of the 4I11/2 and 4I13/2 levels with the highest oscillator strengths. If nonradiative transitions due to ion-ion interaction are more probable, a red shift is observed in the lasing spectra.

Soviet Journal of Quantum Electronics•Feb 28, 1981•6 citations

Experimental observation of the nonadditivity of various mechanisms of population inversion of the4I11/2→4I13/2transition of the Er3+ion in a YSGG:Cr3+:Er3+crystal

Mikhail A. Noginov, G. K. Sarkisyan, Valerii A Smirnov +2 more

Experimental observation of the nonadditivity of various mechanisms of population inversion of the 4I11/2→4I13/2 transition of the Er3+ ion in a YSGG:Cr3+:Er3+ crystal, M A Noginov, G K Sarkisyan, Valerii A Smirnov, A F Umyskov, Ivan A Shcherbakov

Soviet Journal of Quantum Electronics•Jun 30, 1990•3 citations

Efficiency of population of the4I13/2level of the Er3+ion and the possibility of lasing at 1.5 μm in Yb, Er:YAG at high temperatures

B. I. Galagan, Boris I. Denker, Vyacheslav V Osiko +1 more

It is shown that, as the temperature of an Yb, Er:YAG crystal is increased from room temperature to 400–600°C, the efficiency of energy accumulation on the 4 I 13/2 level of the Er 3+ ion increases by several times upon optical pumping through Yb 3+ ions. Under these conditions, up to 60% of erbium ions can be excited, which gives promise that lasing at a wavelength of 1.54 μm can be achieved in the Yb, Er:YAG crystal in the three-level scheme.

Quantum Electronics•Oct 31, 2007•5 citations
A new method was developed for determining the mechanism of anti-Stokes filling of luminescent levels of an activator in a rare-earth crystal. An investigation was made of the dependences of the absolute populations of the 4 I 13/2 , 4 I 11/2 , 4 F 9/2 , 4 S 3/2 , H 9/2 , 4 G 11/2 , and 2 P 3/2 levels of Er 3+ in a BaYb 2 F 8 crystal on the energy absorbed within the Yb 3+ sensitizer band. The mechanisms of anti-Stokes filling of the 4 I 13/2 , 4 F 9/2 , 4 S 3/2 , and 2 H 9/2 levels of Er 3+ were determined under conditions of weak (1 mJ/cm 3 ) and strong (∼10 J/cm 3 ) pumping.
Abstract Emission and visible photoluminescence excitation spectra of CaF2:Er (0.5 at %) crystals have been studied under different optical pumping conditions. The results demonstrate that anti-Stokes luminescence of the erbium-doped crystals has higher intensity in the case of pumping of the 4I13/2 metastable state of the dopant. Resonance IR photon wavelengths have been determined for two-photon excitation of visible emission in CaF2:Er. A method has been developed for the optical modulation of anti-Stokes luminescence, which allows the nature of the corresponding electron transitions in emission centers to be identified.
Crystals of the composition Ca1–x Er x F2 + x (0 < x ≤ 0.02) have been grown from the melt by the Bridgman method. The absorption, luminescence excitation, and photoluminescence spectra of this material in the case of the Stokes and anti-Stokes mechanisms of the optical excitation from two radiation sources simultaneously have been analyzed. It has been found that the visible luminescence manifests itself upon sequential absorption of two resonance infrared photons with different energies. This effect is associated with the fact that, in this material, there are metastable states of the excited levels 4 I 11/2 of the Er3+ ions, from which transitions to higher energy levels occur due to the absorption of infrared photons.
A study was made of various cases of a population inversion between the 4I11/2 and 4I13/2 levels in Y3Al5O12:Er3+ crystals. It is found that when nonradiative transitions from the upper levels to the active levels by the mechanism of multiphonon energy transfer are more probable, laser action occurs due to transitions between the Stark components of the 4I11/2 and 4I13/2 levels with the highest oscillator strengths. If nonradiative transitions due to ion-ion interaction are more probable, a red shift is observed in the lasing spectra.