Development and Applications of Coherent X-ray Laser Optics at Angstrom Wavelengths

The past two decades have witness rapid development of accelerator based x-ray laser sources. Unprecedented coherence and brightness at Angstrom wavelengths enabled new capabilities across broad research disciplines from chemistry, biology, material science, to astrophysics, to name a few. To fully exploit the exquisite nature of of the rapidly developing x-ray sources, x-ray optics play important roles, in its transportation, conditioning, purification, manipulation, and analysis. In this talk, we highlight the degree of precision required for enabling such capabilities at x-ray wavelengths, and focus on recent progresses in manipulation of the coherent x-ray pulses in both space, spectral, angular, and time domain. In particular, we present the power of crystal optics in extending many advanced optical laser concepts into the hard x-ray wavelength domain, enabling key components such as x-ray pulse stretcher, expander, and x-ray cavities.