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  High-cooperativity nanofiber laser

Faez, S., Türschmann, P., & Sandoghdar, V. (submitted). High-cooperativity nanofiber laser.

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arXiv:1403.1885.pdf (Preprint), 503KB
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Faez, Sanli1, Author              
Türschmann, Pierre1, Author              
Sandoghdar, Vahid1, Author              
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1Sandoghdar Division, Max Planck Institute for the Science of Light, Max Planck Society, ou_2364722              

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Free keywords: Physics, Optics, physics.optics,Quantum Physics, quant-ph
 Abstract: Cavity-free efficient coupling between emitters and guided modes is of great current interest for nonlinear quantum optics as well as efficient and scalable quantum information processing. In this work, we extend these activities to the coupling of organic dye molecules to a highly confined mode of a nanofiber, allowing mirrorless and low-threshold laser action in an effective mode volume of less than 100 femtoliters. We model this laser system based on semi-classical rate equations and present an analytic compact form of the laser output intensity. Despite the lack of a cavity structure, we achieve a coupling efficiency of the spontaneous emission to the waveguide mode of 0.07(0.01), in agreement with our calculations. In a further experiment, we also demonstrate the use of a plasmonic nanoparticle as a dispersive output coupler. Our laser architecture is promising for a number of applications in optofluidics and provides a fundamental model system for studying nonresonant feedback stimulated emission.

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Language(s): eng - English
 Dates: 2014-03-07
 Publication Status: Submitted
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 Rev. Type: -
 Identifiers: arXiv: 1403.1885
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Title: arXiv: 1403.1885
Source Genre: Commentary
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Publ. Info: Cornell University Library
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