Local Polarization Reversal In 36 Degrees Y-Cut Congruent Lithium Niobate By Focused Electron Beam: Forward Domain Growth

The growth of requirements to frequency mixers adapter for high-power lasers stimulates the studies of domain kinetics in nonlinear ferroelectric crystals with the slanted polar axis. Forward domain growth after local polarization reversal by focused electron beam irradiation and domain interaction were studied in 0.5-mm-thick 36 degrees Y-cut crystals of congruent lithium niobate. The dependences of domain length on the distance between domains and position in a block of domains were explained by the distribution of the space-charge field and domain-domain interaction. The stripe domains with length up to 500 mu m were produced.