Optimisation of photorefractive multiple quantum wells for biomedical imaging

A novel method has been proposed and tested to optimize the photorefractive multiple quantum wells device for biomedical imaging. The device acts as a dynamic holographic beam combiner in a holographic optical coherence imaging. By choosing an appropriate duty cycle of the external electric field, the Joule heat limit and saturation of exciton are decreased. We examine several characteristics that govern the use of the device.