[21p-C302-3~10] 4.7 Quantum Optics and Nonlinear Optics

▲ [21p-C302-8] Investigation and Optimisation of High Harmonics from Wide Bandgap Dielectrics

〇(DC)Katarzyna Kowalczyk¹, Hortense Allegre¹, Mary Matthews¹ (1.ICL, UK)

Keywords:high harmonics, attosecond, crystals

We present a comparison of the high harmonic generation for two wide bandgap solids under varying ultrafast pulse properties. Through control of the chirp and temporal shape of the pulse we optimise different orders in the high harmonic plateau. Moreover, studying in parallel ionic MgO and giant covalent SiO2 highlights the bond type influence on the spectral properties and by changing the angle between linear light polarisation and bonding directions, we optimise the electron paths for enhanced high harmonic spectra. The possibility of enhancement of specific energies within the spectra presents solid HHG as an attractive, more compact candidate for an XUV probe source for spectroscopy applications