[5p-S45-1~17] 3.6 Ultrashort-pulse and high-intensity lasers

▲ [5p-S45-15] Ellipsometry of high harmonics in GaSe pumped by 3.3 μm optical parametric amplifiers

〇Faming Lu¹, Teruto Kanai¹, Peiyu Xia¹, Nobuhisa Ishii¹, Jiro itatani¹ (1.The institute for Solid State Physics, The University of Tokyo)

Keywords:MIR optical parametric amplifiers, high harmonic generation

High harmonics are produced in GaSe with an intense infrared field (~16 MV/cm at 3.3 μm).
Ellipsometric measurement confirms the field reversal of perpendicular polarization components of odd harmonics due to band gradients.