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Journal Article

Properties of coherence-gated wavefront sensing

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Rückel,  Markus
Department of Biomedical Optics, Max Planck Institute for Medical Research, Max Planck Society;

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Denk,  Winfried
Department of Biomedical Optics, Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Rückel, M., & Denk, W. (2007). Properties of coherence-gated wavefront sensing. Journal of the Optical Society of America A-Optics Image Science and Vision, 24(11), 3517-3529. doi:10.1364/JOSAA.24.003517.


Cite as: http://hdl.handle.net/11858/00-001M-0000-002C-AD20-D
Abstract
Coherence-gated wavefront sensing (CGWS) allows the determination of wavefront aberrations in strongly scattering tissue and their correction by adaptive optics. This allows, e.g., the restoration of the diffraction limit in light microscopy. Here, we develop a model, based on ray tracing of ballistic light scattered from a set of discrete scatterers, to characterize CGWS performance as it depends on coherence length, scatterer density, coherence-gate position, and polarization. The model is evaluated by using Monte Carlo simulation and verified against experimental measurements. We show, in particular, that all aberrations needed for adaptive wavefront restoration are correctly sensed if circularly polarized light is used.