Functional imaging of intact taste cells in response to various tastant solutions poses a technical challenge since the refractive index of the immersion medium dynamically changes during tastant delivery. Critically, the focal shift introduced by high-index tastant solutions has been the fundamental limit in experimental design. Here we seek to address this issue by introducing an axially elongated Bessel beam in two-photon microscopy. Compared to the conventional Gaussian beam, the Bessel beam provides superior robustness to the index-induced focal shift, allowing us to acquire near artifact-free imaging of taste cells in response to a physiological taste stimulus.
CITATION STYLE
Han, J., Kim, S., Choi, P., Lee, S., Jo, Y., Kim, E., & Choi, M. (2021). Robust functional imaging of taste sensation with a Bessel beam. Biomedical Optics Express, 12(9), 5855. https://doi.org/10.1364/boe.430643
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