Photonic dicerResearchers have demonstrated the successful reformatting of a telescope point-spread-function using a three-dimensional integrated optical waveguide device, which they name the photonic dicer. Applying the demonstrated principles, the performance of spectrographs operating at high spatial resolution near to the diffraction limit have been improved using adaptive optics. This photonic dicer has a great potential to enhance the performance of high-resolution spectroscopy in areas such as exoplanet detection and characterisation.

[Monthly Notices of the Royal Astronomical Society 450, 428]