A scheme based on a W-shaped axicon mirror device for total-internal-reflection fluorescence microscopy (TIRFM) is presented. This approach combines the advantages of higher efficiency compared with traditional TIRFM, adjustable illumination area, and simple switching between wide-field and TIRF imaging modes. TIRF images obtained with this approach are free of shadow artifacts and of interference fringes. Example micrographs of fluorescently labeled polystyrene beads, of Convallaria majalis tissue, and of Propidium-iodide-labeled Chinese hamster ovary cells are shown, and the capabilities of the scheme are discussed.
© 2010 Optical Society of America
Original Manuscript: September 1, 2010
Revised Manuscript: October 10, 2010
Manuscript Accepted: October 28, 2010
Published: November 29, 2010
Ming Lei and Andreas Zumbusch, "Total-internal-reflection fluorescence microscopy with W-shaped axicon mirrors," Opt. Lett. 35, 4057-4059 (2010)