The new grating was installed in 2012 December ... the polarizer is probably due to room/detector temperature differences because the two measurements were taken on different days. Since the ...

Importantly — and unlike a physical grating — the properties of an acoustic-optic grating, such as its pitch and strength, can be controlled by altering the frequency, polarization and ...

More information: Wenzhong Fang et al, Bioinspired single-shot polarization photodetector based on four-directional grating arrays capped perovskite single-crystal thin film, Science Advances (2024).

We also found that polarization selectivity is determined ... a microstructured fibre is the chiral analogue of the 3D Bragg grating. Chiral fibres are fabricated in a miniature fibre drawing ...