3D mapping of intensity field about the focus of a micrometer–scale parabolic mirror

McDonald, Alison and McConnell, Gail and Cox, David C. and Riis, Erling and Griffin, Paul F. (2015) 3D mapping of intensity field about the focus of a micrometer–scale parabolic mirror. Optics Express, 23 (3). pp. 2375-2382. ISSN 1094-4087 (https://doi.org/10.1364/OE.23.002375)

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Abstract

We report on the fabrication and diffraction-limited characterization of parabolic focusing micromirrors. Sub–micron beam waists are measured for mirrors with 10-μm radius aperture and measured fixed focal lengths in the range from 24 μm to 36 μm. Optical characterization of the 3D intensity in the near–field produced when the device is illuminated with collimated light is performed using a modified confocal microscope. Results are compared directly with angular spectrum simulations, yielding strong agreement between experiment and theory, and identifying the competition between diffraction and focusing in the regime probed.

  • Item type:Article
    ID code:51749
    Dates:
    Date
    Event
    28 January 2015
    Published
    17 December 2014
    Accepted
    Notes:Date of Acceptance: 17/12/2014 This paper was published in Optics Express and is made available as an electronic reprint with the permission of OSA. The paper can be found at the following URL on the OSA website: http://dx.doi.org/10.1364/OE.23.002375. Systematic or multiple reproduction or distribution to multiple locations via electronic or other means is prohibited and is subject to penalties under law.
    Subjects:Science > Physics > Optics. Light
    Department:Faculty of Science > Strathclyde Institute of Pharmacy and Biomedical Sciences
    Faculty of Science > Physics
    Depositing user: Pure Administrator
    Date deposited:18 Feb 2015 14:22
    Last modified:14 Apr 2024 00:29
    Related URLs:
    URI:https://strathprints.strath.ac.uk/id/eprint/51749
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