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arXiv 0810.0016quant-ph
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锥形Optical Fibers的双光子吸收增强分析

Analysis of Enhanced Two-Photon Absorption in Tapered Optical Fibers

Hao You, S. M. Hendrickson, J. D. Franson

摘要:

分析了直径小于入射光波长的锥形光纤中的双光子吸收率。双光子吸收的速率被示出为增强由于锥形光纤的小模式体积和渐逝场与围绕锥形区域的原子蒸气的相对大的重叠。双光子吸收率作为锥形区域直径的函数进行了优化。

英文摘要:

We analyze the rate of two-photon absorption in tapered optical fibers with diameters less than the wavelength of the incident light. The rate of two-photon absorption is shown to be enhanced due to the small mode volume of the tapered fiber and the relatively large overlap of the evanescent field with an atomic vapor that surrounds the tapered region. The two-photon absorption rate is optimized as a function of the diameter of the tapered region.

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