Coherent phonons generated by stimulated emission in ruby

L. G. Tilstra,

L. G. Tilstra

Faculty of Physics and Astronomy, Utrecht University, P. O. Box 80000, 3508 TA Utrecht, The Netherlands

Present address: Royal Netherlands Meteorological Institute (KNMI), P. O. Box 201, 3730 AE De Bilt, The Netherlands

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A. F. M. Arts,

A. F. M. Arts

Faculty of Physics and Astronomy, Utrecht University, P. O. Box 80000, 3508 TA Utrecht, The Netherlands

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H. W. de Wijn,

Corresponding Author

H. W. de Wijn

[email protected]

Faculty of Physics and Astronomy, Utrecht University, P. O. Box 80000, 3508 TA Utrecht, The Netherlands

Phone: +31 30 2532227, Fax: +31 30 2532403Search for more papers by this author

L. G. Tilstra,

L. G. Tilstra

Faculty of Physics and Astronomy, Utrecht University, P. O. Box 80000, 3508 TA Utrecht, The Netherlands

Present address: Royal Netherlands Meteorological Institute (KNMI), P. O. Box 201, 3730 AE De Bilt, The Netherlands

Search for more papers by this author

A. F. M. Arts,

A. F. M. Arts

Faculty of Physics and Astronomy, Utrecht University, P. O. Box 80000, 3508 TA Utrecht, The Netherlands

Search for more papers by this author

H. W. de Wijn,

Corresponding Author

H. W. de Wijn

[email protected]

Faculty of Physics and Astronomy, Utrecht University, P. O. Box 80000, 3508 TA Utrecht, The Netherlands

Phone: +31 30 2532227, Fax: +31 30 2532403Search for more papers by this author

First published: 16 November 2004

https://doi.org/10.1002/pssc.200405369

Citations: 1

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Abstract

The Zeeman-split equation image (²E) doublet of Cr³⁺ in a single crystal of 500-at.ppm ruby (Al₂O₃:Cr³⁺) is population inverted by selective transient optical pumping, and the resulting avalanches of resonant phonons are measured and analyzed. Coherent Bloch equations governing the acoustic wave and the transverse spin polarizations are found to provide an excellent description. (© 2004 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)