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Updated: Oct 12, 2025

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Time Multiplexing Super Resolving Technique for Imaging from a Moving Platform

Published on: February 12, 2014

Wavelength-multiplexed single-shot ptychography.

Jonathan Barolak¹, David Goldberger¹, Jeff Squier¹

¹Department of Physics, Colorado School of Mines, 1523 Illinois Street, Golden, Colorado 80401, United States of America.

Ultramicroscopy

|November 21, 2021

Summary

This summary is machine-generated.

This study demonstrates wavelength-multiplexing for single-shot ptychography, enabling simultaneous reconstruction of object properties at multiple wavelengths. This advances imaging technologies like broadband and time-resolved ptychography.

Keywords:

Coherent diffraction imaging Information multiplexing Quantitative phase imaging Reference-free Single-shot ptychography

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Last Updated: Oct 12, 2025

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Area of Science:

Optics and Photonics
Coherent Imaging
Diffractive Imaging

Background:

Single-shot ptychography offers rapid imaging but typically reconstructs at a single wavelength.
Reconstructing multiple wavelengths simultaneously is crucial for characterizing wavelength-dependent materials and phenomena.

Purpose of the Study:

To experimentally demonstrate wavelength-multiplexing in single-shot ptychography.
To simultaneously reconstruct complex transmission profiles of wavelength-independent and dependent objects.
To explore detector segmentation and probe constraints for enhanced single-shot ptychography.

Main Methods:

Experimental implementation of wavelength-multiplexing using 532 nm and 633 nm probing wavelengths.
Development of a minimization approach to correct for a priori information uncertainties.
Introduction of a novel probe constraint for improved reconstruction accuracy.

Main Results:

Successful simultaneous reconstruction of object transmission profiles at two distinct wavelengths.
Demonstration of wavelength-multiplexing capability in single-shot ptychography.
Validation of the proposed methods for handling a priori information and probe constraints.

Conclusions:

Wavelength-multiplexing is experimentally feasible in single-shot ptychography.
This technique is complementary to dual-wavelength interferometry without external references.
Enables advanced applications including broadband, time-resolved, and real-time imaging.