Isotropic Diffraction-Limited Focusing Using a Single Objective Lens

PLUTO / PLUTO-2 Spatial Light Modulators
Microscopy
Published on:
Authors: Emeric Mudry, Eric Le Moal, Patrick Ferrand, Patrick C. Chaumet, and Anne Sentenac
Abstract:

“Focusing a light beam through a lens produces an anisotropic spot elongated along the optical axis, because the light comes from only one side of the focal point. Using the time-reversal concept, we show that isotropic focusing can be realized by placing a mirror after the focal point and shaping the incident beam. This idea is applied to confocal microscopy and brings about a dramatic improvement of the axial resolution.”

Restricted Access

Publication: Physical Review Letters
Issue/Year: Phys. Rev. Lett., Volume 105, 203903 (2010)
DOI: 10.1103/PhysRevLett.105.203903
Link: https://doi.org/10.1103/PhysRevLett.105.203903

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