Highly coherent light at 13 nm generated by use of quasi-phase-matched high-harmonic generation

Optics Letters
X ZhangD T Attwood

Abstract

By measuring the fringe visibility in a Young's double pinhole experiment, we demonstrate that quasi-phase-matched high-harmonic generation produces beams with very high spatial coherence at wavelengths around 13 nm. To our knowledge these are the highest spatial coherence values ever measured at such short wavelengths from any source without spatial filtering. This results in a practical, small-scale, coherent, extreme-ultraviolet source that is useful for applications in metrology, imaging, and microscopy.

Citations

Dec 29, 2007·Proceedings of the National Academy of Sciences of the United States of America·Richard L SandbergJianwei Miao
Sep 2, 2009·Journal of the Optical Society of America. A, Optics, Image Science, and Vision·Robert W SchoonoverP Scott Carney
Oct 13, 2007·Physical Review Letters·Richard L SandbergFarhad Salmassi
Jun 5, 2007·Optics Letters·J Ph GoddetK Jakubczak
Jul 11, 2021·The Review of Scientific Instruments·Kotaro NishimuraEiji J Takahashi

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