Image beam from a wire laser | Zendy

E. E. Orlova | Zendy; J. N. Hovenier | Zendy; Pieter de Visser | Zendy; J. R. Gao | Zendy

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Image beam from a wire laser

Author(s) -

E. E. Orlova,

J. N. Hovenier,

Pieter de Visser,

J. R. Gao

Publication year - 2015

Publication title -

physical review a

Language(s) - English

Resource type - Journals

eISSN - 1094-1622

pISSN - 1050-2947

DOI - 10.1103/physreva.91.051802

Subject(s) - physics , optics , laser , beam parameter product , beam (structure) , terahertz radiation , radius , laser beam quality , lens (geology) , beam diameter , laser beams , wavelength , cascade , lambda , quantum cascade laser , transverse plane , waveguide , cylindrical lens , chemistry , computer security , structural engineering , chromatography , computer science , engineering

We demonstrate the formation of a narrow beam from a long (L??) laser with subwavelength transverse dimensions (wire laser) as an image of the subwavelength laser waveguide formed by a spherical lens. The beam is linearly diverging with the angle determined by the ratio of the wavelength to the lens radius, while the minimum beam spot size is the same as that of the image of a point source. We realize such a beam experimentally using a terahertz quantum cascade wire laser.QN/Quantum NanoscienceApplied Science

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