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Proceedings Paper

Variable-focus microlenses: Issues for confocal imaging
Author(s): Aaron Mac Raighne; Jiangang Wang; Eithne McCabe; T. Scharf
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Paper Abstract

We present the investigation of integration of Variable Focal Length (VFL) microlenses into the confocal system. VFL microlenses acting as an array of objective lenses is examined with a novel method for scanning in the axial direction presented. By variation of the focal length of the lenses the focal plane can be scanned through the sample without the mechanical movement of the sample or the objective lens, we have named this 'focal scanning'. Some of the issues related to this experiment are noted and discussed, in particular with reference to the low Numerical Aperture (NA) of the VFL microlenses available. Proposed solutions to these issues deal with the design of higher NA microlenses.

Paper Details

Date Published: 8 June 2005
PDF: 11 pages
Proc. SPIE 5827, Opto-Ireland 2005: Photonic Engineering, (8 June 2005); doi: 10.1117/12.604490
Show Author Affiliations
Aaron Mac Raighne, Trinity College Dublin (Ireland)
Jiangang Wang, Trinity College Dublin (Ireland)
Eithne McCabe, Trinity College Dublin (Ireland)
T. Scharf, Univ. of Neuchatel (Switzerland)


Published in SPIE Proceedings Vol. 5827:
Opto-Ireland 2005: Photonic Engineering
Thomas J. Glynn; John T. Sheridan; Brian W. Bowe; Ronan F. O'Dowd; Gerard M. O'Connor; Aidan J.H. Flanagan; Gerard D. O'Sullivan; Gerald Byrne; Jonathan Magee, Editor(s)

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