Ultra-High Density Permanent and/or Erasable Optical Memory in Photorefractive Media Formed by Ultrafast Laser Pulses

We aim to produce high-density permanent and erasable optical memory using ultrafast laser modification of dielectric properties of photorefractive material. The project will study the write-read-erasing of 100-nm size nanostructures in a bulk of photorefractive media to advance the fundamental understanding of memory bits growth in nonequilibrium conditions of femtosecond laser pulses for precise control over the size, density, optical and electronic properties of the resulting diffractive nanostructures. The outcomes will include demonstration of 10Tbit-plus density erasable or permanent optical memory for a wide range application in information technology and photonics.