Highly coherent light at 13 nm generated by use of quasi-phase-matched high-harmonic generation
Date
2004
Authors
Attwood, D. T., author
Liu, Y., author
Bartels, R. A., author
Kapteyn, H. C., author
Murnane, M. M., author
Christov, I. P., author
Backus, S., author
Gagnon, E., author
Paul, A., author
Libertun, A. R., author
Journal Title
Journal ISSN
Volume Title
Abstract
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.