Effects of magnetic field orientation on optical decoherence in Er3+:Y2SiO5

被引：139

作者：

Boettger, Thomas ^{[1
,2
]}

Thiel, C. W. ^{[2
]}

Cone, R. L. ^{[2
]}

Sun, Y. ^{[2
,3
]}

机构：

[1] Univ San Francisco, Dept Phys & Astron, San Francisco, CA 94117 USA

[2] Montana State Univ, Dept Phys, Bozeman, MT 59717 USA

[3] Univ S Dakota, Dept Phys, Vermillion, SD 57069 USA

来源：

PHYSICAL REVIEW B | 2009年 / 79卷 / 11期

关键词：

erbium; excited states; g-factor; ground states; magnetic anisotropy; magnetic field effects; magnetic moments; photon echo; yttrium compounds; Zeeman effect; LASER FREQUENCY STABILIZATION; 1536; NM; SPECTRAL DIFFUSION; MEMORY; CODES; HOLES;

D O I：

10.1103/PhysRevB.79.115104

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of the anisotropic Zeeman effect on optical decoherence was studied for the 1.54 mu m telecom transition in Er3+:Y2SiO5 using photon echo spectroscopy as a function of applied magnetic field orientation and strength. The decoherence strongly correlates with the Zeeman energy splittings described by the ground- and excited-state g factor variations for all inequivalent Er3+ sites, with the observed decoherence times arising from the combined effects of the magnetic dipole-dipole coupling strength and the ground- and excited-state spin-flip rates, along with the natural lifetime of the upper level. The decoherence time was maximized along a preferred magnetic field orientation that minimized the effects of spectral diffusion and that enabled the measurement of an exceptionally narrow optical resonance in a solid-demonstrating a homogeneous linewidth as narrow as 73 Hz.

引用

页数：8

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