Abstract: A system for photon correlation of an illuminated object and/or a light source is provided. The system includes a light source for illuminating the object and an optical system having an object-facing side configured to face the object or the light source and a projection side with the projection side having a focal plane. The system also includes a single-chip single photon avalanche photodiode (SPAD) array arranged at the focal plane and a timing circuit associated with the single-chip SPAD array for measuring arrival times of photons detected by the single-chip SPAD array.

Abstract: A system for photon correlation of an illuminated object and/or a light source, including a light source for illuminating the object or to correlate, an optical system having an object-facing side configured to face the object or the light source and a projection side, the projection side having a focal plane, a single-chip single photon avalanche photodiode (SPAD) array arranged at the focal plane, and a timing circuit associated with the single-chip SPAD array for measuring arrival times of photons detected by the single-chip SPAD array.

Abstract: An efficient nanoscale semiconducting optoelectronic system, containing a P/N acceptor donor organic hetrojunction which is optimized for neuronal stimulation—an organic electrolytic photocapacitor. The devices comprise a thin (80 nm) trilayer of metal and p-n semiconducting organic nanocrystals. When illuminated in physiological solution, these metal-semiconductor devices charge up, transducing light pulses into localized displacement currents that are strong enough to electrically stimulate neurons with safe light intensities.