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Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC)

Optical Nanofibers for Manipulating and Probing Single-Atom Fluorescence

K. P. Nayak, Павел Николаевич Мелентьев, M. Morinaga, Fam Le Kien, V. I. Balykin, K. Hakuta

Published Jun 1, 2007• 0 citations
Publisher

Abstract

In the present work, the authors proposes a novel method to manipulate atoms and photons using a subwavelength-diameter silica-fiber, an optical nanofiber. We use laser-cooled Cs-atoms as working atom. The paper shows that fluorescence of a very small number of atoms around the optical nanofiber can be measured efficiently by detecting the photons coupled to the guided mode of the nanofiber. Atoms around the nanofiber behave like molecules made up of atom and nanofiber.

DOI
10.1109/cleoe-iqec.2007.4386693

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In the present work, the authors proposes a novel method to manipulate atoms and photons using a subwavelength-diameter silica-fiber, an optical nanofiber. We use laser-cooled Cs-atoms as working atom. The paper shows that fluorescence of a very small number of atoms around the optical nanofiber can be measured efficiently by detecting the photons coupled to the guided mode of the nanofiber. Atoms around the nanofiber behave like molecules made up of atom and nanofiber.
We demonstrate how optical nanofibers can be used to manipulate and probe single-atom fluorescence. We show that fluorescence photons from a very small number of atoms, average atom number of less than 0.1, around the nanofiber can readily be observed through single-mode optical fiber under resonant laser irradiation. We show also that optical nanofibers enable us to probe the van der Waals interaction between atoms and surface with high precision by observing the fluorescence excitation spectrum.
We demonstrate how optical nanofibers can be used to manipulate and probe single-atom fluorescence. We show that fluorescence photons from a very small number of atoms, average atom number of less than 0.1, around the nanofiber can readily be observed through single-mode optical fiber under resonant laser irradiation. We show also that optical nanofibers enable us to probe the van der Waals interaction between atoms and surface with high precision by observing the fluorescence excitation spectrum.