Surface-plasmon-coupled emission microscopy with a spiral phase plate
Optics Letters, Vol. 35, Issue 4, pp. 517-519 (2010)
http://dx.doi.org/10.1364/OL.35.000517
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Abstract
The surface plasmon-coupled emission microscope provides high sensitivity for surface imaging. However, it suffers from a distorted donut-shape point-spread function (PSF). Here we report an effective yet simple method to correct for the distortion by introducing a spiral phase plate. This modification converts the donut PSF into one that is single lobed, which is preferable for imaging. The optical performance of the system is characterized and compared with previous publications. This technique provides more than twofold lateral resolution enhancement.
© 2010 Optical Society of America
OCIS Codes
(180.0180) Microscopy : Microscopy
(180.2520) Microscopy : Fluorescence microscopy
(240.6680) Optics at surfaces : Surface plasmons
ToC Category:
Optics at Surfaces
History
Original Manuscript: October 27, 2009
Manuscript Accepted: December 7, 2009
Published: February 9, 2010
Virtual Issues
Vol. 5, Iss. 5 Virtual Journal for Biomedical Optics
Citation
Wai Teng Tang, Euiheon Chung, Yang-Hyo Kim, Peter T. So, and Colin J. Sheppard, "Surface-plasmon-coupled emission microscopy with a spiral phase plate," Opt. Lett. 35, 517-519 (2010)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=ol-35-4-517
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