Single-aperture STED illumination using a q-plate and fiber

Authors:

Yan, L., Karimi, E., Gregg, P., Boyd, R., & Ramachandran, S.

Keywords:

Laser beam shaping, Fiber optics imaging, Fluorescence microscopy

Abstract:

We demonstrate single-aperture STED nanoscopy illumination with vortex-fiber modes excited by a dispersive q=1/2 plate at visible wavelengths. The vortex-fiber-compatible bias-voltage-tunable mode conversion of q-plates enables easy switching between multiple STED-wavelength pairs.

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