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arXiv 1306.3394physics.optics
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光控光的完美吸收

Light-controlled perfect absorption of light

K. Nireekshan Reddy, S. Dutta Gupta

摘要:

研究了光在克尔非线性金属-介质复合介质中的相干完全吸收。基本的对称性考虑表明,入射光强度的平等是一个先决条件,以确保CPA在线性和非线性系统的特定系统参数。我们还得到了有CPA的充分条件。我们进一步表明,虽然线性系统中的CPA对入射功率水平不敏感,但在非线性系统中,只有对于具有有趣滞后响应的离散强度才能实现CPA。我们的统一制定的CPA和波导识别它们作为相反的散射现象。我们进一步研究了光致CPA在共振和非共振系统中的作用。

英文摘要:

We study coherent perfect absorption (CPA) of light in a Kerr nonlinear metal-dielectric composite medium, illuminated from the opposite ends. Elementary symmetry considerations reveal that equality of the incident light intensities is a prerequisite to ensure CPA in both linear and nonlinear systems for specific system parameters. We also derive the sufficient conditions for having CPA. We further show that while CPA in a linear system is insensitive to the incident power level, that in a nonlinear system can be achieved only for discrete intensities with interesting hysteretic response. Our unified formulation of CPA and waveguiding identifies them as opposite scattering phenomena. We further investigate light-induced CPA in on- and off- resonant systems.

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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