Abstract Recent developments of the time-stretch in optics have been closely related to the concept of time-of-flight in mass spectrometry. While the resolution of optical wavelength in time-stretch techniques relies on the differentiation of optical path lengths induced by either free space or dispersive media, the mass resolution in time-of-flight mass spectrometry depends on the overall length of the field-free region during a fly of ions group. In this study, we introduce the latest concept of free-space angular-chirp-enhanced delay (FACED) cavity from the field of optical time-stretch into the time-of-flight mass spectrometry. The FACED cavity in time-of-flight ion optics will be realized using a pair of angularly misaligned electrostatic ion mirrors. We study the properties of the FACED cavity in ion optics using SIMION and demonstrate how the multiple reflections in a time-of-flight mass analysis can be significantly increased.

中文翻译：

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角线性调频增强延迟腔飞行时间质谱模拟研究

摘要 光学中时间延展的最新发展与质谱中飞行时间的概念密切相关。虽然时间拉伸技术中光波长的分辨率依赖于由自由空间或色散介质引起的光路长度的差异，但飞行时间质谱中的质量分辨率取决于无场区域的总长度在离子组飞行期间。在这项研究中，我们将自由空间角线性调频增强延迟 (FACED) 腔的最新概念从光学时间拉伸领域引入到飞行时间质谱。飞行时间离子光学器件中的 FACED 腔将使用一对角度未对准的静电离子镜实现。