Fig. 1. Co-propagating circularly polarized counter-rotating bichromatic fields^[25]. (a) Schematic of the experimental setup for counter-rotating bichromatic fields; (b) Lissajous curve of light field

Fig. 2. Orthogonally polarized two-colour high-order harmonics generation^[27]. (a) Generation of elliptically polarized high-order harmonics; (b) side view of the polarization measurement

Fig. 3. Elliptical resonant high-order harmonics^[23].(a) Experimental harmonic intensity and ellipticity; (b) theoretical harmonic intensity and ellipticity; (c) harmonic intensity and ellipticity above the threshold ionization with resonances

Fig. 4. Interference polarization control method^[72]

Fig. 5. All-optical polarimeter for the polarization states of HHG^[29] (a) Schematic of the EUV polarimeter; (b) Stokes parameters on the Poincaré surface; (c) polarization states of input driving fields and output EUV

Fig. 6. Molecular polarimeter by MFPAD^[30]. (a) MFPADs intensity; (b) cuts of the MFPADs in the polarization plane at azimuth of 90° or 270°

Fig. 7. Fourfold differential PECD signal^[87]

Fig. 8. ARPES circular dichroism in circular polarized field^[97]. (a) Sketch of the theoretical calculation; (b) band structure of graphene close to the Dirac point; (c)(d) ARPES intensity close to the K and K´ points; (e)(f) corresponding dichroic signal