2024 Volume 144 Issue 4 Pages 326-327
In this study, we designed, fabricated and evaluated a dark hole generation optical system that combines an annular phase plate and an annular wave plate for super-resolution microscopy based on stimulated emission or upconversion fluorescence depletion. The phase plate is a compound phase plate that combines two types of spiral phase plates in a ring shape, and the wave plate is a ring shape combination of two types of wave plates with crystal axes perpendicular to each other. Despite its complex structure, the composite phase plate could be precisely fabricated using the exposure and etching processes used in semiconductor manufacturing. A super-resolution microscope equipped with these devices confirmed the generation of a three-dimensional dark hole of fluorescence-suppressed light.
The transactions of the Institute of Electrical Engineers of Japan.C
The Journal of the Institute of Electrical Engineers of Japan