论文标题
光学镊子对空间应用的粉尘颗粒调查
Investigation of dust grains by optical tweezers for space applications
论文作者
论文摘要
宇宙尘埃在宇宙中起着主导作用，尤其是在恒星和行星系统的形成中。此外，宇宙粉尘颗粒的表面是基准氢和简单有机化合物的基础工作。我们通过非接触式和非侵入性技术（例如标准和拉曼镊子）来操纵水溶液中的单个灰尘颗粒，以表征它们对光（光学力和扭矩）机械作用的反应，并确定其矿物质成分。此外，我们在t-matrix形式主义中显示了准确的光学计算，该计算突出了组成和复杂形态在宇宙灰尘颗粒的光学诱捕中的关键作用。这为未来在样品返回任务或外星人环境中的策展设施中使用光学镊子将来应用的观点开辟了观点。
Cosmic dust plays a dominant role in the universe, especially in the formation of stars and planetary systems. Furthermore, the surface of cosmic dust grains is the bench-work where molecular hydrogen and simple organic compounds are formed. We manipulate individual dust particles in water solution by contactless and non-invasive techniques such as standard and Raman tweezers, to characterize their response to mechanical effects of light (optical forces and torques) and to determine their mineral compositions. Moreover, we show accurate optical force calculations in the T-matrix formalism highlighting the key role of composition and complex morphology in optical trapping of cosmic dust particles.This opens perspectives for future applications of optical tweezers in curation facilities for sample return missions or in extraterrestrial environments.
