Diamond Based X-Ray Lens Theory and Processing Technology

The development of high repetition rate and high brightness coherent X-ray sources provides a new tool for scientific research based on X-ray microanalysis technology, and also poses enormous challenges to the development of related optical components. Compound refractive lens (CRL) has low sensitivity to shape errors and is easy to adjust online. It is an important device for achieving X-ray beam collimation and shaping, and also a critical component for applications such as X-ray microscopy imaging. The focusing performance of compound refractive lenses made of different materials are compared, and proves that compound refractive lenses based on diamond crystals are ideal focusing lenses for future diffraction limit light sources and X-ray free electron lasers. At the same time, the use of femtosecond lasers for diamond crystal processing was explored based on design parameters. The results indicate that femtosecond laser is an effective method for micro machining diamond compound refractive lenses, and after process optimization, it is expected to produce compound refractive lenses that meet the application requirements.