Size and wavelength dependent photoionisation of xenon clusters

► Generation of Xe10+ (I.P. ∼ 200 eV) using 532 nm laser of intensity ∼109 W/cm2. ► Threshold cluster size estimated to be n ⩽ 50 for generation of Xeq+ (q = 2-10). ► Kinetic energy of multiply charged Xe ions increase with cluster size. ► Threshold laser intensity for generation of Xeq+ ions decrease with cluster size.