Abstract
In the ferroelectric/photoconductor (FE/PC device, the effect of a gaussian irradiance profile is to give rise to a variable series resistance, in series with the ferroelectric. Low and high frequency hysteresis loops and the FE-switching transients are obtained as a function of series resistance for pulses of fixed amplitude and variable pulse width. Using a four-quadrant plot, the spatial distribution of the charge switched is estimated. Bit size is defined as the distance between the points where the switched polarization drops to half the amount of polarization switched at the center. The bit sizes are calculated for different photoconductor sensitivities and for different drive pulses. The sublinear lux-ampere characteristic of the photoconductor combined with the gaussian irradiance profile causes the recorded bit size to be larger than the light beam diameter.
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