High-order Nonlinear Dipole Response Characterized byExtreme-Ultraviolet Ellipsometry
Ming-Chang Chen1*
1Institute of Photonics Technologies, National Tsing Hua University, Hsinchu, Taiwan
* Presenter:Ming-Chang Chen, email:mingchang@mx.nthu.edu.tw
We demonstrate that polarization control and characterization of high-harmonic generation in non-collinear geometry perform as excellent ellipsometry that can precisely retrieve the non-perturbative dipole response, both amplitude and phase, in the extremely nonlinear up-conversion process.

Keywords: high-harmonic generation, Ellipsometry, nonlinear optics