K
Kohzo Hakuta
Researcher at University of Electro-Communications
Publications - 92
Citations - 3093
Kohzo Hakuta is an academic researcher from University of Electro-Communications. The author has contributed to research in topics: Optical fiber & Photon. The author has an hindex of 27, co-authored 88 publications receiving 2874 citations.
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Journal ArticleDOI
Optical nanofiber as an efficient tool for manipulating and probing atomic fluorescence
TL;DR: It is shown that fluorescence of a very small number of atoms, around the nanofiber can be readily observed through a single-mode optical fiber, and that such a technique enables us to probe the van der Waals interaction between atoms and surface with high precision by observing the fluorescence excitation spectrum through the nan ofiber.
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Atom trap and waveguide using a two-color evanescent light field around a subwavelength-diameter optical fiber
TL;DR: In this article, the authors suggest using a two-color evanescent light field around a subwavelength-diameter fiber to trap and guide atoms, which allows confinement of atoms to two straight lines parallel to the fiber axis.
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Spontaneous emission of a cesium atom near a nanofiber: Efficient coupling of light to guided modes
TL;DR: In this article, the spontaneous emission of a cesium atom in the vicinity of a subwavelength-diameter fiber was studied and it was shown that the confinement of the guided modes and the degeneracy of the excited and ground states substantially affect spontaneous emission process.
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Atom trapping and guiding with a subwavelength-diameter optical fiber
TL;DR: In this article, the authors show that the gradient force of a red-detuned evanescent wave field in the fundamental mode of a silica fiber can balance the centrifugal force when the fiber diameter is about two times smaller than the wavelength of the light and the component of the angular momentum of the atoms along the fiber axis is in an appropriate range.
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Efficient Channeling of Fluorescence Photons from Single Quantum Dots into Guided Modes of Optical Nanofiber
TL;DR: The efficient channeling of fluorescence photons from single q dots on optical nanofiber into the guided modes by measuring the photon-count rates through the guided and radiation modes simultaneously is experimentally demonstrated.