Published articles

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13 p, 1.7 MB Blue-detuned optical ring trap for Bose-Einstein condensates based on conical refraction / Turpin Avilés, Alejandro (Universitat Autònoma de Barcelona. Departament de Física) ; Polo Gomez, Juan (Universitat Autònoma de Barcelona. Departament de Física) ; Loiko, Yu V. (Aston Institute of Photonic Technologies) ; Küber, Johannes (Technische Universität Darmstadt. Institut für Angewandte Physik) ; Schmaltz, F. (Technische Universität Darmstadt. Institut für Angewandte Physik) ; Kalkandjiev, Todor Kirilov (Universitat Autònoma de Barcelona. Departament de Física) ; Ahufinger, Verònica (Universitat Autònoma de Barcelona. Departament de Física) ; Birkl, Gerhard (Technische Universität Darmstadt. Institut für Angewandte Physik) ; Mompart Penina, Jordi (Universitat Autònoma de Barcelona. Departament de Física)
We present a novel approach for the optical manipulation of neutral atoms in annular light structures produced by the phenomenon of conical refraction occurring in biaxial optical crystals. For a beam focused to a plane behind the crystal, the focal plane exhibits two concentric bright rings enclosing a ring of null intensity called the Poggendorff ring. [...]
2015 - 10.1364/OE.23.001638
Optics express, Vol. 23, issue 2 (Jan. 2015) , p. 1638-1650  

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