The pathway towards the realization of optical solid-state lasers was gradual and slow. After
Einstein's paper on absorption and stimulated emission of light in 1917 it took until 1960 for …

Zinc oxide (ZnO) is considered as an ideal candidate for ultraviolet (UV) lasers due to its
unique advantages of wide direct bandgap and large exciton binding energy. Recently …

Morphology-rich ZnO as a direct band gap II–VI semiconductor is a promising material for
photonic, optical, and electronic devices. Nanostructured materials have provided a leading …

All-optical nanoscale logic components are highly desired for various applications because
light may enable logic functions to be performed extremely quickly without the generation of …

We report in this communication the two-photon absorption (TPA)-induced room-
temperature lasing performance of ZnO nanowires. Under femtosecond pulse-excitation at …

We use second-harmonic generation (SHG) with focused vector beams to investigate
individual vertically aligned GaAs nanowires. Our results provide direct evidence that SHG …

Zinc oxide ZnO is a n-type semiconductor having a wide direct band gap (3.37 eV) as well
as a non-centrosymmetric crystal structure resulting from hexagonal wurtzite phase. Its wide …

High-order wave mixing in solid-state platforms gather increasing importance due to the
development of advanced lasers and integrated photonic circuit for both classical and …

Zinc oxide (ZnO) in its nanostructured form is emerging as a promising material with great
potential for the development of many smart electronic devices. This book presents up-to …

We report and characterize second-harmonic generation from a single wurtzite GaAs
nanoneedle. The wurtzite crystal structure of the nanoneedle relaxes the strict nonlinear …