ABSTRACT

We describe the use of a silver-coated 90${}^{\circ }$ parabolic mirror of 33 mm focal length as objective for imaging, on-axis laser heating and radiospectrometric temperature measurements of a sample compressed in a diamond anvil cell in a laser heating system. There, spatial resolution and imaging quality of the parabolic mirror are similar to the one of a 10× objective. The temperature measurements between 500 and 900 nm are essentially free from chromatic aberration. The parabolic mirror was also perforated with a 220-μm hole, allowing for on-axis imaging, laser heating and incidence of X-rays simultaneously at synchrotron facilities. The parabolic mirror is thus a well-suited alternative to existing refractive and reflective objectives in laboratory and synchrotron laser heating systems.

摘要

我们描述了使用镀银 90${}^{\circ }$焦距为 33 mm 的抛物面镜作为物镜，用于在激光加热系统的金刚石砧座中压缩样品的成像、轴上激光加热和放射光谱温度测量。在那里，抛物面镜的空间分辨率和成像质量类似于 10 倍物镜之一。500 到 900 nm 之间的温度测量基本上没有色差。抛物面镜还打有一个 220 微米的孔，允许在同步加速器设施中同时进行轴上成像、激光加热和 X 射线入射。因此，抛物面镜非常适合替代实验室和同步加速器激光加热系统中现有的折射和反射物镜。