Abstract
The solid state opens new possibilities for the generation of high harmonics extending to the extreme ultraviolet. Additionally, an array of tools and techniques exists for straightforward fabrication of solid-state devices, with nanoscale precision. In this work, we explore new ways to control high-harmonic emission in semiconductors using nanofabrication. We measure high-harmonic emission from tailored silicon and zinc oxide targets, up to the ninth order of the fundamental driving frequency (corresponding to a wavelength of ~225 nm). Morphology and local composition can each localize and enhance emission. We utilize this control to demonstrate prototype devices which simultaneously emit and focus harmonic radiation.
© 2018 The Author(s)
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