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

Alison McDonald; Gail McConnell; David C. Cox; Erling Riis; Paul F. Griffin

doi:10.1364/OE.23.002375

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

Alison McDonald, Gail McConnell, David C. Cox, Erling Riis, Paul F. Griffin

Research output: Contribution to journal › Article › peer-review

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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.

Original language	English
Pages (from-to)	2375-2382
Number of pages	8
Journal	Optics Express
Volume	23
Issue number	3
DOIs	https://doi.org/10.1364/OE.23.002375
Publication status	Published - 28 Jan 2015

Keywords

optics
confocal microscopy
micromirrors
micro-optics

Access to Document

10.1364/OE.23.002375

McDonald-etal-OE-2015-3D-mapping-of-intensity-fieldAccepted author manuscript, 955 KBLicence: CC BY-NC-SA 4.0

http://www.opticsinfobase.org/oe/home.cfm

Paul Griffin
- paul.griffin@strath.ac.uk
- Physics - Senior Lecturer
- SUPA
- Ocean, Air and Space
Person: Academic
Gail McConnell
- g.mcconnell@strath.ac.uk
- Physics - Professor
- Measurement Science and Enabling Technologies
- Health and Wellbeing
Person: Academic

Cite this

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title = "3D mapping of intensity field about the focus of a micrometer–scale parabolic mirror",

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.",

keywords = "optics, confocal microscopy, micromirrors, micro-optics",

author = "Alison McDonald and Gail McConnell and Cox, {David C.} and Erling Riis and Griffin, {Paul F.}",

note = "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.",

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doi = "10.1364/OE.23.002375",

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N1 - 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.

PY - 2015/1/28

Y1 - 2015/1/28

N2 - 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.

AB - 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.

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KW - confocal microscopy

KW - micromirrors

KW - micro-optics

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DO - 10.1364/OE.23.002375

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SN - 1094-4087

IS - 3

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

Abstract

Keywords

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Paul Griffin

Gail McConnell

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