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Cited by 310

The DOI matches its Crossref record; 16 of the 16 references it cites were found in a registry or an index.

Fast two-layer two-photon imaging of neuronal cell populations using an electrically tunable lens

Open access
Grewe, Benjamin F., Voigt, Fabian F., van ’t Hoff, Marcel, Helmchen, Fritjof·2011·Biomedical Optics Express

Abstract

Functional two-photon Ca(2+)-imaging is a versatile tool to study the dynamics of neuronal populations in brain slices and living animals. However, population imaging is typically restricted to a single two-dimensional image plane. By introducing an electrically tunable lens into the excitation path of a two-photon microscope we were able to realize fast axial focus shifts within 15 ms. The maximum axial scan range was 0.7 mm employing a 40x NA0.8 water immersion objective, plenty for typically required ranges of 0.2-0.3 mm. By combining the axial scanning method with 2D acousto-optic frame scanning and random-access scanning, we measured neuronal population activity of about 40 neurons across two imaging planes separated by 40 μm and achieved scan rates up to 20-30 Hz. The method presented is easily applicable and allows upgrading of existing two-photon microscopes for fast 3D scanning.

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Metadata

Authors
Grewe, B. F., Voigt, F. F., van ’t Hoff, M., & Helmchen, F.
Venue
Biomedical Optics Express
Published
2011-06-23
Volume
2
Issue
7
Pages
2035
ISSN
2156-7085 (ISSN-L)
OpenAlex
W2003429530
Cited by
310
References
16
FWCI
7.98
Type
journal article
Language
en
Open access
gold

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CoChat. (2026). Citation check: Fast two-layer two-photon imaging of neuronal cell populations using an electrically tunable lens. https://app.cochat.ai/papers/10.1364/boe.2.002035
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Grewe, B. F., Voigt, F. F., van ’t Hoff, M., & Helmchen, F. (2011). Fast two-layer two-photon imaging of neuronal cell populations using an electrically tunable lens. Biomedical Optics Express. https://doi.org/10.1364/boe.2.002035

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