Diffractive optical elements (DOE) are surface relief structures which can provide abitrary beam shaping and pattern formation functionality. Using our customised design and fabrication capabilties, we are able to provide state of the art diffractive optical elements with high diffraction efficiency and low non-uniformity on ultrathin, lightweight and high damage threshold substrates suitable for a wide range of applications. The range of functionalities for these customised devices is vast including:
Potential applications of this technology include:
Typical sizes of diffractive optical elements range from a few 10s of micrometres for simple fan-out elements up to a few millimetres for complex pattern formation elements. The individual features forming the surface relief structure of diffractive optical element have a minimum feature size of 1.5 micrometres limiting the diffraction angle to approximately 10°.