Abstract

Diffractive nano optics enable precise control and manipulation of optical wave fronts, offering unique functionalities impossible with refractive optics. Their small size and robustness make them useful across the electromagnetic spectrum, from infrared to X-rays. We develop nanolithography techniques to fabricate high-performance diffractive optics, including transmission achromatic optics, blazed reflection gratings, and ultra-high resolution flat optics. Here, we use a variety of materials to construct these optics, including diamond, polymeric, and metallic materials. The authors discuss recent developments in fabricating diffractive nano optics and outline future trends in the field.

© 2023 The Author(s)