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Related Experiment Video

Updated: Jun 5, 2026

A Multimodal Wide-Field Fourier-Transform Raman Microscope

A Multimodal Wide-Field Fourier-Transform Raman Microscope

Published on: December 30, 2025

Ultrafast optical multidimensional spectroscopy without interferometry.

J A Davis¹, T R Calhoun, K A Nugent

¹ARC Centre of Excellence for Coherent X-Ray Science, The School of Physics, The University of Melbourne, Victoria 3010, Australia. JDavis@swin.edu.au

The Journal of Chemical Physics

|January 19, 2011

Summary

This summary is machine-generated.

This study introduces a novel phase retrieval technique for multidimensional optical spectroscopy, enabling access to previously unavailable modalities. The iterative algorithm accurately recovers phase information, advancing chemical and biological analysis.

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A Multimodal Wide-Field Fourier-Transform Raman Microscope

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Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization

Measurement of Ultrafast Vibrational Coherences in Polyatomic Radical Cations with Strong-Field Adiabatic Ionization

Published on: August 6, 2018

Area of Science:

Optical Spectroscopy
Chemical Physics
Biophysics

Background:

Multidimensional optical spectroscopy offers insights into electronic processes.
Current techniques are limited by interferometric detection requirements.
Existing methods are analogous to multidimensional NMR spectroscopies.

Purpose of the Study:

To present a phase retrieval technique for accessing new multidimensional optical spectroscopy modalities.
To detail an iterative algorithm for recovering phase relationships in two-color spectroscopy.
To provide practical implementation guidance for phase retrieval algorithms.

Main Methods:

Development of an iterative algorithm for phase retrieval.
Application to two-color multidimensional spectroscopy (analogous to heteronuclear NMR).
Assessment using simulated and experimental one- and two-color data.

Main Results:

The iterative algorithm successfully recovers relative phase relationships.
The technique provides access to multidimensional modalities beyond interferometric limitations.
Results compare favorably with solutions obtained through independent interferometry.

Conclusions:

The presented phase retrieval algorithm is effective and accurate for multidimensional optical spectroscopy.
Identified limitations and potential pitfalls require consideration for practical implementation.
Iterative phase retrieval algorithms hold potential for future advances in spectroscopy.