Nanodomain tailoring

AFM nanodomain tailoring technology 10.3.1 Nanoscale switching electrode... 

The major trends in ferroelectric photonic and electronic devices are based on development of materials with nanoscale features. Piezoelectric, electrooptic, nonlinear optical properties of fe are largely determined by the arrangement of ferroelectric domains. A promising way is a modification of these basic properties by means of tailoring nanodomain and refractive index superlattices. 

These nanodomain superlattices were written by moving the hvafm tip along the polar Z+-face with a velocity of around 50 p.m/sec. The width of the tailored strips was greatly affected by the tip velocity and was measured to be between 50 and 1500 nm a larger tip velocity resulted in narrower domains. 

Figure 10.4 Nanodomain grating (domain period is 410 nm) tailored for integrated optical device in LiNbC>3 crystal by application of dc voltage (U = 2.0kV). (b) Domain grating (domain period is 1180nm) fabricated in the RbTiOPCU crystal for non-collinear quasi-phase-matched nonlinear optical converter.

Nanodomain superlattices tailored by multiple tip arrays of hvafm... 

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