Physical Review Letters

Observation of Laser-Induced Fluorescence Line Narrowing in Glass: Nd

L. A. Riseberg

Published Mar 27, 1972• 50 citations

Abstract

Laser-induced fluorescence line narrowing has been observed for the first time in a nonresonantly excited rare-earth system. Excitation with the 4727-\AA{} ${A}^{+}$ line into the $^{4}G_{\frac{11}{2}}$ level of ${\mathrm{Nd}}^{3+}$ in glass results in narrowing of transitions from the $^{4}F_{\frac{3}{2}}$ to both the $^{4}I_{\frac{9}{2}}$ ground manifold and the $^{4}I_{\frac{11}{2}}$ excited manifold. The concentration dependence of the line narrowing provides information regarding resonant ion-ion energy transfer within the inhomogeneously broadened system.

DOI: 10.1103/physrevlett.28.786

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Laser-Induced Fluorescence-Line-Narrowing Spectroscopy of Glass: Nd

L. A. Riseberg

Laser-induced fluorescence line narrowing has been studied in a series of samples of glass: Nd. The features of the nonresonant-excitation technique are described, and the results are discussed in terms of the known spectroscopic properties of the glass: Nd system. The concentration and temperature dependence of the line narrowing have been studied, and the spectral diffusion that is observed is analyzed in terms of resonant ion-ion energy transfer.

Physical Review AFeb 1, 197380 citations

Fluorescence-line-narrowing and energy-transfer studies in ruby

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Polarized fluorescence line narrowing measurements of Nd laser glasses: Evidence of stimulated emission cross section anisotropy

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Polarized 4F3/2→4I11/2 and 4F3/2→4F9/2 emission of Nd3+ in silicate laser glasses are measured using resonant and nonresonant fluorescence line narrowing techniques. The observed depolarization ratio is a measure of the anisotropy of the stimulated emission cross section and the degree of polarization hole burning that will occur for lasers operating in the large-signal gain regime.

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Laser-Induced Fluorescence-Line Narrowing in Ruby

Arthur G. Szabo

Physical Review LettersOct 5, 1970241 citations

Energy transfer among Yb3+ ions in a silicate glass

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Physical review. B, Condensed matterDec 15, 198639 citations

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David L. Huber

International Conference on Luminescence - 1984Jan 1, 19840 citations

Physical Review Letters

Observation of Laser-Induced Fluorescence Line Narrowing in Glass: Nd

L. A. Riseberg

Published Mar 27, 1972• 50 citations

Publisher

Abstract

Laser-induced fluorescence line narrowing has been observed for the first time in a nonresonantly excited rare-earth system. Excitation with the 4727-\AA{}

{A}^{+}

line into the

^{4}G_{\frac{11}{2}}

level of

{\mathrm{Nd}}^{3+}

in glass results in narrowing of transitions from the

^{4}F_{\frac{3}{2}}

to both the

^{4}I_{\frac{9}{2}}

ground manifold and the

^{4}I_{\frac{11}{2}}

excited manifold. The concentration dependence of the line narrowing provides information regarding resonant ion-ion energy transfer within the inhomogeneously broadened system.

DOI: 10.1103/physrevlett.28.786

Related papers

Laser-Induced Fluorescence-Line-Narrowing Spectroscopy of Glass: Nd

L. A. Riseberg

Physical Review AFeb 1, 197380 citations

Fluorescence-line-narrowing and energy-transfer studies in ruby

Peter M. Selzer, David L. Huber, B. B. Barnett +1 more

Fluorescence-line-narrowing and time-resolved studies have been conducted in ruby crystals and powders, in concentrations varying from 0.025 to 0.9 at.%. The resonance fluorescence component of the ${R}_{1}$ line at low temperatures is observed to increase dramatically as the laser is tuned from line center toward the low-energy wing of the inhomogeneously broadened absorption. This is presumed to indicate the presence of weakly coupled pairs in the wings of the line. Intraline and interline (${R}_{1}\ensuremath{\rightarrow}{N}_{1,2}$) energy transfer have also been studied, and an elaboration of earlier work is given. Time-resolved selective-excitation scans have revealed numerous channels in the vicinity of the $R$ lines by which the different pairs can be directly excited. These are assumed to be Cr ions near enough to a pair to be in a highly perturbed environment. Various experimental results are shown to be consistent with a model of rapid transfer between resonant Cr ions which feeds the pairs via a weak, nonresonant coupling to these perturbed ions. Macroscopic strain broadening is also shown to be favored over microscopic broadening, and the implications for Anderson localization in ruby are discussed.Fluorescence-line-narrowing and time-resolved studies have been conducted in ruby crystals and powders, in concentrations varying from 0.025 to 0.9 at.%. The resonance fluorescence component of the ${R}_{1}$ line at low temperatures is observed to increase dramatically as the laser is tuned from line center toward the low-energy wing of the inhomogeneously broadened absorption. This is presumed to indicate the presence of weakly coupled pairs in the wings of the line. Intraline and interline (${R}_{1}\ensuremath{\rightarrow}{N}_{1,2}$) energy transfer have also been studied, and an elaboration of earlier work is given. Time-resolved selective-excitation scans have revealed numerous channels in the vicinity of the $R$ lines by which the different pairs can be directly excited. These are assumed to be Cr ions near enough to a pair to be in a highly perturbed environment. Various experimental results are shown to be consistent with a model of rapid transfer between resonant Cr ions which feeds the pairs via a weak, nonresonant coupling to these perturbed ions. Macroscopic strain broadening is also shown to be favored over microscopic broadening, and the implications for Anderson localization in ruby are discussed.

Physical review. B, Condensed matterJun 15, 197891 citations

Polarized fluorescence line narrowing measurements of Nd laser glasses: Evidence of stimulated emission cross section anisotropy

Douglas W. Hall, William J. Weber

Applied Physics LettersJan 15, 198322 citations

Laser-Induced Fluorescence-Line Narrowing in Ruby

Arthur G. Szabo

Using resonance ruby-laser excitation, narrowing of the ruby ${R}_{1}$ fluorescence line to width 0.002 ${\mathrm{cm}}^{\ensuremath{-}1}$ at 4.2\ifmmode^\circ\else\textdegree\fi{}K is observed. Absence of spectral diffusion indicates that a short-range interaction rather than earlier postulated multipolar interactions is responsible for energy transfer in concentrated ruby.Using resonance ruby-laser excitation, narrowing of the ruby ${R}_{1}$ fluorescence line to width 0.002 ${\mathrm{cm}}^{\ensuremath{-}1}$ at 4.2\ifmmode^\circ\else\textdegree\fi{}K is observed. Absence of spectral diffusion indicates that a short-range interaction rather than earlier postulated multipolar interactions is responsible for energy transfer in concentrated ruby.

Physical Review LettersOct 5, 1970241 citations

Energy transfer among Yb3+ ions in a silicate glass

Richard T. Brundage, William M. Yen

We have used time-resolved fluorescence line narrowing to study energy transfer among ${\mathrm{Yb}}^{3+}$ ions in a silicate glass as a function of energy mismatch between donors and acceptors and temperature from 4.2 to 51 K. The observed spectra are consistent with a one-phonon-assisted multipolar interaction between ${\mathrm{Yb}}^{3+}$ ions with a variation with site separation of ${r}^{\mathrm{\ensuremath{-}}13}$. These results are compared to that reported for other rare-earth-ion transitions in glasses and crystals.We have used time-resolved fluorescence line narrowing to study energy transfer among ${\mathrm{Yb}}^{3+}$ ions in a silicate glass as a function of energy mismatch between donors and acceptors and temperature from 4.2 to 51 K. The observed spectra are consistent with a one-phonon-assisted multipolar interaction between ${\mathrm{Yb}}^{3+}$ ions with a variation with site separation of ${r}^{\mathrm{\ensuremath{-}}13}$. These results are compared to that reported for other rare-earth-ion transitions in glasses and crystals.

Physical review. B, Condensed matterDec 15, 198639 citations

Fluorescence Line Narrowing in Dilute Systems with Nearest-Neighbor Transfer

David L. Huber

We outline the results of an analysis of fluorescence line narrowing1 in dilute systems. We assume that a fraction, p, of the sites on a d-dimensional lattice are occupied at random by optically active ions and that the transfer of optical excitation can only take place between ions occupying nearest-neighbor sites. The normalized intensity of the sharp line fluorescence following excitation of an inhomogeneously broadened line by a monochromatic source is equal to exp [−γRt]<P(t)>, where γR is the radiative decay rate and <P(t)> is the probability that an ion excited at t=0 is also excited at time t.2We outline the results of an analysis of fluorescence line narrowing1 in dilute systems. We assume that a fraction, p, of the sites on a d-dimensional lattice are occupied at random by optically active ions and that the transfer of optical excitation can only take place between ions occupying nearest-neighbor sites. The normalized intensity of the sharp line fluorescence following excitation of an inhomogeneously broadened line by a monochromatic source is equal to exp [−γRt]<P(t)>, where γR is the radiative decay rate and <P(t)> is the probability that an ion excited at t=0 is also excited at time t.2

International Conference on Luminescence - 1984Jan 1, 19840 citations

Laser-induced fluorescence line narrowing has been observed for the first time in a nonresonantly excited rare-earth system. Excitation with the 4727-\AA{}

{A}^{+}

line into the

^{4}G_{\frac{11}{2}}

level of

{\mathrm{Nd}}^{3+}

in glass results in narrowing of transitions from the

^{4}F_{\frac{3}{2}}

to both the

^{4}I_{\frac{9}{2}}

ground manifold and the

^{4}I_{\frac{11}{2}}

excited manifold. The concentration dependence of the line narrowing provides information regarding resonant ion-ion energy transfer within the inhomogeneously broadened system.

Fluorescence-line-narrowing and time-resolved studies have been conducted in ruby crystals and powders, in concentrations varying from 0.025 to 0.9 at.%. The resonance fluorescence component of the

{R}_{1}

line at low temperatures is observed to increase dramatically as the laser is tuned from line center toward the low-energy wing of the inhomogeneously broadened absorption. This is presumed to indicate the presence of weakly coupled pairs in the wings of the line. Intraline and interline (${R}_{1}\ensuremath{\rightarrow}{N}_{1,2}$) energy transfer have also been studied, and an elaboration of earlier work is given. Time-resolved selective-excitation scans have revealed numerous channels in the vicinity of the

R

lines by which the different pairs can be directly excited. These are assumed to be Cr ions near enough to a pair to be in a highly perturbed environment. Various experimental results are shown to be consistent with a model of rapid transfer between resonant Cr ions which feeds the pairs via a weak, nonresonant coupling to these perturbed ions. Macroscopic strain broadening is also shown to be favored over microscopic broadening, and the implications for Anderson localization in ruby are discussed.

Using resonance ruby-laser excitation, narrowing of the ruby

{R}_{1}

fluorescence line to width 0.002 ${\mathrm{cm}}^{\ensuremath{-}1}$ at 4.2\ifmmode^\circ\else\textdegree\fi{}K is observed. Absence of spectral diffusion indicates that a short-range interaction rather than earlier postulated multipolar interactions is responsible for energy transfer in concentrated ruby.

We have used time-resolved fluorescence line narrowing to study energy transfer among

{\mathrm{Yb}}^{3+}

ions in a silicate glass as a function of energy mismatch between donors and acceptors and temperature from 4.2 to 51 K. The observed spectra are consistent with a one-phonon-assisted multipolar interaction between

{\mathrm{Yb}}^{3+}

ions with a variation with site separation of ${r}^{\mathrm{\ensuremath{-}}13}$. These results are compared to that reported for other rare-earth-ion transitions in glasses and crystals.