Analysis of Enhanced Two-Photon Absorption in Tapered Optical Fibers

Details Analysis of Enhanced Two-Photon Absorption in Tapered Optical Fibers Analysis of Enhanced Two-Photon Absorption in Tapered Optical Fibers

2008-09-30

arxiv.org/abs/0810.0016v1

Phys. Rev. A 78, 053803 (2008).

Physics

Quantum Physics

14 pages, 4 figures

Scientific paper

10.1103/PhysRevA.78.053803

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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