title: Domain inversion in MgO-diffused LiNbO(3).
abstract: We obtain the periodic modulation of domain polarization by patterning MgO on the positive C-face of LiNbO(3), followed by Li outdiffusion to induce domain inversion. We obtain domain inversion lines (1.5 microm) by heat treating LiNbO(3) at 1000 degrees C for 2 h with a 1-microm inversion depth. This process may be suitable for fabrication of first-order gratings that are needed for high second-harmonic conversion efficiency by using a quasi-phase-matched technique.
authors.forename: W Y
authors.initials: WY
authors.lastname: Hsu
authors.forename: M C
authors.initials: MC
authors.lastname: Gupta