Wavelength-multiplexed single-shot ptychography

We present the first experimental demonstration of wavelength-multiplexing in single-shot ptychography. Specifically, we experimentally reconstruct the complex transmission profile of a wavelength-independent and wavelength-dependent object simultaneously for 532 nm and 633 nm probing wavelengths. In addition, we discuss the advantages of a more general approach to detector segmentation in single-shot ptychography. A minimization to correct for uncertainties in a priori information that is required for single-shot geometries is presented along with a novel probe constraint. Furthermore, this technique is complementary to dual-wavelength interferometry without the need for an external reference. This work is enabling to imaging technologies and applications such as broadband single-shot ptychography, time-resolved imaging by multiplexed ptychography, real-time inspection for laser micro-machining, and plasma imaging.

Automated summary

This study introduces the experimental demonstration of wavelength-multiplexing in single-shot ptychography, reconstructing complex transmission profiles simultaneously for different probing wavelengths. It discusses the advantages of a more general approach to detector segmentation and presents a minimization technique to correct uncertainties in a priori information. Additionally, it introduces a novel probe constraint without the need for an external reference, enabling various imaging technologies and applications.