High speed sub-micrometric microscopy using optical polymer microlens
Chinese Optics Letters, Vol. 7, Issue 10, pp. 901-903 (2009)
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Abstract
We report the high speed scanning submicronic microscopy (SSM) using a low cost polymer microlens integrated at the extremity of an optical fiber. These microlenses are fabricated by a free-radical photopolymerization method. Using a polymer microlens with a radius of curvature of 250 nm, a sub-micrometric gold pattern is imaged experimentally by SSM. Different distances between the tip and the sample are used with a high scanning speed of 200 cm/s. In particular, metallic absorption contrasts are described with an optical spatial resolution of 250 nm at the wavelength of 532 nm. Moreover, finite-difference time-domain (FDTD) simulations concerning the focal lengths of microlenses with different geometries and heights support the experimental data.
© 2009 Chinese Optics Letters
OCIS Codes
(130.0130) Integrated optics : Integrated optics
(160.0160) Materials : Materials
(180.0180) Microscopy : Microscopy
Citation
X. H. Zeng, J. Plain, S. Jradi, P. Renaud Goud, R. Deturche, P. Royer, and R. Bachelot, "High speed sub-micrometric microscopy using optical polymer microlens," Chin. Opt. Lett. 7, 901-903 (2009)
http://www.opticsinfobase.org/col/abstract.cfm?URI=col-7-10-901
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