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Proceedings Paper

Multifocal axial confocal microscopic scanning with a phase-only liquid crystal spatial light modulator
Author(s): Li Min Zou; Ming Shu Pang; Meng Jiao Zhou; Bao Kai Wang
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Paper Abstract

Aiming at the shortcomings of mechanical scanning methods, non-mechanical scanning method is proposed. A zoom illuminating lens which has multiple focal points is realized by introducing Liquid Crystal Spatial Light Modulator (LC-SLM) into the confocal illumination light path, and thus it produces the multifocal zoom lens axially. The axial optical sectioning in a conventional confocal microscope is achieved by beam scanning rather than mechanically moving the objective lens, which enhances the capacity of chromatography and improves the scanning speed with greater accuracy. To generate and shift the multiple axial focal points, the modulation phase bitmaps of LC-SLM is changed. Simulation results further show that multifocal axial confocal beam scanning replacing mechanical scanning can therefore be implemented.

Paper Details

Date Published: 6 March 2015
PDF: 5 pages
Proc. SPIE 9446, Ninth International Symposium on Precision Engineering Measurement and Instrumentation, 94462X (6 March 2015); doi: 10.1117/12.2181210
Show Author Affiliations
Li Min Zou, Harbin Institute of Technology (China)
Ming Shu Pang, Harbin Institute of Technology (China)
Meng Jiao Zhou, Harbin Institute of Technology (China)
Bao Kai Wang, Harbin Institute of Technology (China)

Published in SPIE Proceedings Vol. 9446:
Ninth International Symposium on Precision Engineering Measurement and Instrumentation
Junning Cui; Jiubin Tan; Xianfang Wen, Editor(s)

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