Guiding light through scattering objects using optical wavefront shaping techniques

Optical wavefront shaping through complex scattering media features various interesting applications, for example imaging through opaque scattering media, focusing inside biological tissue or micro manipulation of living cells. Recent advances in digital cameras as holographic light sensors and various digital light modulators with thousands of pixels paved the way for multiple methods of light manipulation in order to overcome and even exploit light scattering for improved focusing at high penetration depth. We propose an experimental setup employing a 10-megapixel phase only spatial light modulator for both digital optical phase conjugation and the acquisition of the complete transmission matrix describing the light scattering behavior. The purpose of the setup is to investigate the fundamentals of the transmission of light patterns through opaque scattering objects. Using the wavefront shaping setup, the scattered light can be directed to form a focus or an arbitrarily complex light pattern on the distal end of the scattering objects.