@article{237026, author = {Jared Wahlstrand and Sina Zahedpour and Anand Bahl and Miroslav Kolesik and H Milchberg}, title = {Bound electron nonlinearity beyond the ionization threshold}, year = {2018}, number = {120}, month = {2018-05-02}, publisher = {Physical Review Letters}, doi = {https://doi.org/10.1103/PhysRevLett.120.183901}, language = {en}, }