A volumetric three-dimensional digital light photoactivatable dye display.
basic_science · Level V
Where this comes from
- Record sourced from PubMed, PMID 28695887.
- Also identified by DOI 10.1038/ncomms15239 and PMC identifier 5508202.
- Licence recorded as CC BY.
- The licence permits redistribution, so the abstract is shown in full and the full text is available from the publisher.
Abstract
Volumetric three-dimensional displays offer spatially accurate representations of images with a 360° view, but have been difficult to implement due to complex fabrication requirements. Herein, a chemically enabled volumetric 3D digital light photoactivatable dye display (3D Light PAD) is reported. The operating principle relies on photoactivatable dyes that become reversibly fluorescent upon illumination with ultraviolet light. Proper tuning of kinetics and emission wavelengths enables the generation of a spatial pattern of fluorescent emission at the intersection of two structured light beams. A first-generation 3D Light PAD was fabricated using the photoactivatable dye N-phenyl spirolactam rhodamine B, a commercial picoprojector, an ultraviolet projector and a custom quartz imaging chamber. The system displays a minimum voxel size of 0.68 mm<sup>3</sup>, 200 μm resolution and good stability over repeated 'on-off' cycles. A range of high-resolution 3D images and animations can be projected, setting the foundation for widely accessible volumetric 3D displays.
Medical subject headings
- Fluorescent Dyes
- Imaging, Three-Dimensional
- Light
- Rhodamines
- Spiro Compounds