Abstract: In various aspects, volumetric display systems are disclosed together with methods for forming images. The volumetric display systems herein described are designed to generate high-quality and three-dimensional images with multiple-degree angle views and user interface. The images are generated from photoluminescent materials, often fluorescent materials, that are embedded in a three-dimensional solid display medium and excited by a pulsed laser beam. The excited fluorescent materials emit light that transmits through the display medium toward the viewer or viewers to create an image. The image can be dynamic when sequentially projected with other images. The disclosed systems can generate three-dimensional images with a single light source and without a high-power laser system operating on air or gas medium and interacting destructively with the imaging media.

Abstract: In various aspects, volumetric display systems are disclosed together with methods for forming images. The volumetric display systems herein described are designed to generate high-quality and three-dimensional images with multiple-degree angle views and user interface. The images are generated from photoluminescent materials, often fluorescent materials, that are embedded in a three-dimensional solid display medium and excited by a pulsed laser beam. The excited fluorescent materials emit light that transmits through the display medium toward the viewer or viewers to create an image. The image can be dynamic when sequentially projected with other images. The disclosed systems can generate three-dimensional images with a single light source and without a high-power laser system operating on air or gas medium and interacting destructively with the imaging media.

Abstract: Diffractive optical elements and methods for their fabrication are disclosed. In one aspect, a diffractive optical element is disclosed, which comprises a polymeric substrate substantially transparent to at least one electromagnetic radiation wavelength, and a plurality of metallic inclusions distributed in said polymeric substrate according to a predefined pattern such that said inclusions can collectively diffract at least a portion of incident radiation having said at least one radiation wavelength.