Article Dans Une Revue IEEE Sensors Journal Année : 2015

Swept source optical coherence tomography endomicroscope based on vertically integrated Mirau micro interferometer: concept and technology

Résumé

This paper presents a concept of an endomicroscope for an early detection of neoplastic lesions in the human stomach tissue, based on the Swept Source Optical Coherence Tomography (SS-OCT) and an measurement probe with integrated Mirau micro interferometer. The system consists of pigtailed illumination and detection blocks, connected via a Gradient Index (GRIN) lens collimator to a MOEMS (Micro-Opto-Electro-Mechanical Systems) measurement probe (4 mm x 4 mm x 20 mm). The technology of Mirau micro interferometer is based on vertical multi-wafer bonding approach. The MOEMS probe is intended to be mounted on a continuum robot arm to perform in vivo microscopy of stomach tissues. First, the optical design of the SS-OCT endomicroscope is described, including an analysis of sensitivity. Then, we focus on the fabrication technologies and optical characterization of a key component of the Mirau micro interferometer, i.e. monolithically integrated focusing glass lens. SS-OCT endomicroscope will provide a fast axial scanning of tissues with A-scan sweep rate of 110 kHz, offering the axial resolution of 5.2 m and the lateral resolution of 10.2 m.

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Dates et versions

hal-02134444 , version 1 (20-05-2019)

Identifiants

  • HAL Id : hal-02134444 , version 1

Citer

Przemyslaw Piotr Struk, Sylwester Bargiel, Luc Froehly, Maciej Baranski, Nicolas Passilly, et al.. Swept source optical coherence tomography endomicroscope based on vertically integrated Mirau micro interferometer: concept and technology. IEEE Sensors Journal, 2015, 15 (12), pp.7061 - 7070. ⟨hal-02134444⟩
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