D. Sinefeld, H. P. Paudel, D. G. Ouzounov, T. G. Bifano, and C. Xu
Adaptive optics in multiphoton microscopy: comparison of two, three and four photon fluorescence“, Optics Express., Vol. 23, Issue 24, pp. 31472-31483, 2015.  >>> Link

N. G. Horton and C. Xu
Dispersion compensation in three-photon fluorescence microscopy at 1,700 nm“, Biomedical Optics Express 6(4), 1392–1397 (2015) >>> Link

Luke J. Mortensen, Clemens Alt, Raphaël Turcotte, Marissa Masek, Tzu-Ming Liu, Daniel C. Côté, Chris Xu, Giuseppe Intini, and Charles P. Lin
“Femtosecond laser bone ablation with a high repetition rate fiber laser source”  Biomedical Optics Express, Vol. 6, Issue 1, pp. 32-42 (2015) >>> Link

2015