COLIS：用于在国际空间站上研究软物质结构和动力学的先进光散射装置

arXiv - PHYS - Soft Condensed Matter Pub Date : 2024-09-02 DOI:arxiv-2409.01189

Alessandro Martinelli, Stefano Buzzaccaro, Quentin Galand, Juliette Behra, Niel Segers, Erik Leussink, Yadvender Singh Dhillon, Dominique Maes, James Lutsko, Roberto Piazza, Luca Cipelletti

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引用次数: 0

摘要

胶体固体（COLIS）是为国际空间站（ISS）上的实验而开发的最先进的光散射装置。COLIS 允许在更宽的长度尺度（从几纳米到几十微米）和时间尺度（从 100 毫微秒到几十个小时）上探测软物质系统的结构和动力学。除了传统的静态和动态光散射外，COLIS还包括去极化动态光散射、小角度照相机、光子相关成像以及通过辅助近红外激光束对热敏样品进行光学操作，从而为探测软物质系统提供了一个独特的平台。我们通过对标准布朗悬浮液以及蛋白质、胶体玻璃和凝胶系统的地面测试，展示了与未来国际空间站实验类似的观测系统。

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COLIS: an advanced light scattering apparatus for investigating the structure and dynamics of soft matter onboard the International Space Station

Colloidal Solids (COLIS) is a state-of-the-art light scattering setup developed for experiments onboard the International Space Station (ISS). COLIS allows for probing the structure and dynamics of soft matter systems on a wide range of length scales, from a few nm to tens of microns, and on time scales from 100 ns to tens of hours. In addition to conventional static and dynamic light scattering, COLIS includes depolarized dynamic light scattering, a small-angle camera, photon correlation imaging, and optical manipulation of thermosensitive samples through an auxiliary near-infrared laser beam, thereby providing a unique platform for probing soft matter systems. We demonstrate COLIS through ground tests on standard Brownian suspensions, and on protein, colloidal glasses, and gel systems similar to those to be used in future ISS experiments.

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arXiv - PHYS - Soft Condensed Matter

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