Mukhtar Hussain successfully defends PhD thesis

Mukhtar HussainMukhtar Hussain defended successfully his PhD thesis on October 20, 2021 and passed with Distinction. He was awarded a fellowship in the APPLAuSE doctoral program on Plasma Science and Engineering in 2016 and joined GoLP for his thesis under the supervision of Prof. Dr. Marta Fajardo, and co-supervised by Dr. Gareth Williams (also IST) and Dr. Hamed Merdji (LIDYL, CEA-Saclay).

During his PhD, Mukhtar used ultrashort laser pulses to investigate harmonic generation in solids. He studied the interplay between perturbative and non-perturbative effects in 2nd and 3rd harmonic generation in MgO and chromium-doped MgO, also showing that by introducing dopants into simple crystals  the electronic structure can be shaped to tailor the non-linear optical response. He also investigated the nonlinear propagation effects of the ultrafast intense near-infrared pulses in a range of wide bandgap dielectrics, mapping the crystal response by measuring the polarization and ellipticity response of the harmonics.

During his secondment at the Laboratoire d’Optique Apliquée, France, he conducted the first studies on the application of solid-state Hhg with ptychographic imaging of semiconductors.