Light diffraction optical method, with corresponding optical system and device

摘要

An optical system comprises a Bragg reflector configured to diffract incident light having a wavelength between about 0.1 nm and about 0.7 nm. The optical system also comprises a diffraction grating comprising parallel lines engraved on a surface of the Bragg reflector. Specifically, the diffraction grating is configured to diffract incident light having a wavelength between about 0.6 nm and about 150 nm.