Spectral Hole-Burning and Related Spectroscopies: Science and Applications

Accumulated Photon Echo Spectroscopy of Ordered (CaF2) and Disordered (CaF2-YF3) crystals with Nd3+ ions

Keith W. Ver Steeg, R. J. Reeves, V.V. Fedorov, Alexander Ya. Karasik, Tasoltan T. Basiev, Richard C. Powell

Published Jan 1, 1994• 0 citations

Abstract

Numerous experimental investigations of homogeneous line broadening (Γh) of RE3+ ions in crystals and glasses in frequency and time domain [1] have shown that Γh for glasses exceed those for crystals by more than one order of magnitude at low temperatures (T) for the same ions and transitions. Discrepancies between theory and experimental results make it difficult to determine an influence of host disordering on the Γh in a wide temperature range. In this work we measured and compared Γh, values for ordered CaF2 and disordered CaF2-YF3 crystals doped with Nd3+ ions.

DOI: 10.1364/shbs.1994.wd32

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Spectral Hole-Burning and Related Spectroscopies: Science and Applications

Accumulated Photon Echo Spectroscopy of Ordered (CaF2) and Disordered (CaF2-YF3) crystals with Nd3+ ions

Keith W. Ver Steeg, R. J. Reeves, V.V. Fedorov, Alexander Ya. Karasik, Tasoltan T. Basiev, Richard C. Powell

Published Jan 1, 1994• 0 citations

Publisher

Abstract

DOI: 10.1364/shbs.1994.wd32

Related papers

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Keith W. Ver Steeg, Roger J. Reeves, Vladimir Fedorov +3 more

May 8, 19940 citations

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Physical review. B, Condensed matterMar 1, 19958 citations

Accumulated photon echoes were used to measure the dephasing time (

{\mathit{T}}_{2}

) of the

^{4}

{\mathit{I}}_{9/2}

${\ensuremath{\rightarrow}}^{4}$

{\mathit{G}}_{5/2}

{,}^{2}

{\mathit{G}}_{7/2}

transition of

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

in highly disordered

{\mathrm{CaF}}_{2}

{\mathrm{YF}}_{3}

crystals.

{\mathit{T}}_{2}

decreased from subnanosecond values for excitation of low-lying Stark levels to subpicosecond values for excitation of high-lying levels. From 9--100 K the measured temperature dependence of the homogeneous linewidth is described by a resonant single-phonon absorption process.