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Electron-beam-induced domain poling in for two-dimensional nonlinear frequency conversion
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View: Figures


Image of FIG. 1.
FIG. 1.

Indirect electron-beam poling through a dielectric buffer layer.

Image of FIG. 2.
FIG. 2.

(a) Microscope picture of the - side of the etched structure, the dark dots are the inverted domains. (b) An AFM scan of a lattice node, taken from a different sample with a hexagonal poling pattern and macrodomain diameter of . The brighter shade represents deeper topography. (c) Diffraction pattern of the lattice. The bright central spot is the zeroth-order diffraction of the beam.

Image of FIG. 3.
FIG. 3.

Experimental setup for characterizing angle-dependent second-harmonic generation in rectangular-poled .

Image of FIG. 4.
FIG. 4.

(a) The reciprocal lattice for the structure. It can be noticed that both the real and the reciprocal lattices are rotated in 7.5° relative to the zero angle of the fundamental. (b) Angular relation between the fundamental input angle and the second-harmonic output angle (relative to the fundamental), both in air. In both figures, experimental values are denoted by crosses, theoretical values by squares, and the numbers in parentheses are the and coefficient of the corresponding RLV.


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Electron-beam-induced domain poling in LiNbO3 for two-dimensional nonlinear frequency conversion