A Customized Two Photon Fluorescence Imaging Probe Based on 2D scanning MEMS Mirror Including Electrothermal Two-Level-Ladder Dual S-Shaped Actuators

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ID: 270473
2020
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Abstract
We report the design and characterization of a two-photon fluorescence imaging miniature probe. This customized two-axis scanning probe is dedicated for intraoperative two-photon fluorescence imaging endomicroscopic use and is based on a micro-electro-mechanical system (MEMS) mirror with a high reflectivity plate and two-level-ladder double S-shaped electrothermal bimorph actuators. The fully assembled probe has a total outer diameter of 4 mm including all elements. With a two-lens configuration and a small aperture MEMS mirror, this probe can generate a large optical scan angle of 24° with 4 V drive voltage and can achieve a 450 µm FOV with a 2-fps frame rate. A uniform Pixel Dwell Time and a stable scanning speed along a raster pattern were demonstrated while a 57-fs pulse duration of the excitation beam was measured at the exit of the probe head. This miniature imaging probe will be coupled to a two-photon fluorescence endomicroscope oriented towards clinical use.
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mehidine2020micromachinesa Verwenden Sie diesen Schlüssel zum automatischen Zitieren im Manuskript bei Verwendung von SciMatic Manuscript Manager oder Thesis Manager
Autoren Hussein Mehidine, Min Li, Jean-Francois Lendresse, Francoise Bouvet, Huikai Xie, Darine Abi Haidar, Hussein Mehidine, Min Li, Jean-Francois Lendresse, Francoise Bouvet, Huikai Xie, Darine Abi Haidar
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Zeitschrift micromachines
Jahr 2020
DOI
10.3390/mi11070704
URL
https://www.mdpi.com/2072-666X/11/7/704
Schlüsselwörter
two-photon imaging micro-electro-mechanical system (mems) mirror electrothermal actuators 2d scanning probe

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