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arXiv 1003.4938physics.opticsquant-ph
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用回音壁模式测量亚伯拉罕力的可能性

On the Possibility of Measuring the Abraham Force using Whispering Gallery Modes

I. Brevik, S. Å. Ellingsen

摘要:

唯象电动力学中的含时亚伯拉罕力的临界实验测试很少。在本文中,我们分析了利用强度调制回音壁模式的微谐振器为此目的的可能性。这种系统看起来很有吸引力,因为谐振器边缘附近的电磁场的强烈集中可以增强磁场施加的亚伯拉罕扭矩。我们主要分析球形谐振器,虽然作为介绍性步骤,我们也考虑圆柱几何形状。亚伯拉罕扭矩的数量级估计通过插入合理的值的各种输入参数。正如预期的那样,预测的扭矩结果是非常小的,虽然可能不会超出任何实验范围。我们的主要思想实质上是G. B. Walker等人[Can. J. Phys.53,2577]对于低频场,到光学情况。

英文摘要:

Critical experimental tests of the time-dependent Abraham force in phenomenological electrodynamics are scarce. In this paper we analyze the possibility of making use of intensity-modulated whispering gallery modes in a microresonator for this purpose. Systems of this kind appear attractive, as the strong concentration of electromagnetic fields near the rim of the resonator serves to enhance the Abraham torque exerted by the field. We analyze mainly spherical resonators, although as an introductory step we consider also the cylinder geometry. The order of magnitude of the Abraham torques are estimated by inserting reasonable values for the various input parameters. As expected, the predicted torques turn out to be very small, although probably not beyond any reach experimentally. Our main idea is essentially a generalization of the method used by G. B. Walker et al. [Can. J. Phys. 53, 2577] for low-frequency fields, to the optical case.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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