Wright, A.J. and Poland, S.P. and Patterson, B.A. and Girkin, J.M. and Gibson, G.M. and Padgett, M.J. (2006) Dynamic closed-loop system for focus tracking using a spatial light modulator and a deformable membrane mirror. Optics Express, 14 (1). pp. 222-228. ISSN 1094-4087
Full text not available in this repository. (Request a copy from the Strathclyde author)Abstract
A dynamic closed-loop method for focus tracking using a spatial light modulator and a deformable membrane mirror within a confocal microscope is described. We report that it is possible to track defocus over a distance of up to 80 µm with an RMS precision of 57 nm. For demonstration purposes we concentrate on defocus, although in principle the method applies to any wavefront shape or aberration that can be successfully reproduced by the deformable membrane mirror and spatial light modulator, for example, spherical aberration.
| Item type: | Article |
|---|---|
| ID code: | 4788 |
| Keywords: | atmospheric and oceanic optics, active or adaptive optics, microscopy, optical devices, mirrors, spatial light modulators, Optics. Light, Physics |
| Subjects: | Science > Physics > Optics. Light Science > Physics |
| Department: | Faculty of Science > Institute of Photonics |
| Related URLs: | |
| Depositing user: | Strathprints Administrator |
| Date Deposited: | 15 Nov 2007 |
| Last modified: | 12 Mar 2012 10:41 |
| URI: | http://strathprints.strath.ac.uk/id/eprint/4788 |
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