@article{2470, author = {Ming-Chang Chen and Michael Gerrity and Sterling Backus and Tenio Popmintchev and X. Zhou and P. Arpin and X. Zhang and Henry Kapteyn and Margaret Murnane}, title = {Spatially coherent, phase matched, high-order harmonic EUV beams at 50 kHz}, year = {2009}, journal = {Optics Express}, volume = {17}, pages = {17376}, month = {2009-01}, doi = {10.1364/OE.17.017376}, }