Fe2+激发态对InP光折变效应的影响

Topical Meeting on Photorefractive Materials, Effects, and Devices II Pub Date : 1900-01-01 DOI:10.1364/pmed.1990.pd11

P. Delaye, P. Halter, G. Roosen

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引用次数: 0

摘要

虽然在InP:Fe中Fe2+的激发态是众所周知的(图1)，但它对光折变效应的影响从未被考虑过。本文报道了这种影响的研究，并表明这种状态的存在在光折变效应中引起了一种新的空穴-电子竞争。该理论很好地解释了在没有经典空穴-电子竞争(αn«αp)的晶体上获得的光折变耦合增益结果。

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Influence of the Excited State of Fe2+ on Photorefractive Effect in InP

Although the excited state of Fe2+ is well known in InP:Fe (figure 1), its influence on photorefractive effect has never been taken into account. We report here a study of this influence and show that the presence of this state induces in the photorefractive effect a new hole-electron competition. This theory well explains the photorefractive coupling gain results obtained on a crystal without any classical hole-electron competition(αn«αp).

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$Topical Meeting on Photorefractive Materials, Effects, and Devices II$

Topical Meeting on Photorefractive Materials, Effects, and Devices II

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