Near-common-path interferometer for imaging Fourier-transform spectroscopy in wide-field microscopy

Area of Science:

• Optical imaging
• Spectroscopy
• Biophysics

Background:

• Imaging Fourier-transform spectroscopy (IFTS) is crucial for biological hyperspectral analysis.
• Existing wide-field IFTS methods face limitations in phase stability or throughput.
• Current designs struggle with high-throughput imaging and compressive sensing strategies.

Purpose of the Study:

• To present a novel phase-stable, near-common-path interferometer.
• To enable high-throughput hyperspectral imaging with strategic data acquisition.
• To overcome limitations of existing IFTS systems.

Main Methods:

• Development of a novel near-common-path interferometer.
• Implementation of strategic data acquisition compatible with compressed sensing.
• Integration into a high-throughput, high-content microscopy system.

Main Results:

• Achieved phase stability in a near-common-path design.
• Enabled high-throughput hyperspectral imaging.
• Demonstrated improved throughput over existing wide-field spectral techniques by over an order of magnitude.

Conclusions:

• The novel interferometer offers a significant advancement in hyperspectral imaging.
• This approach enhances throughput without compromising phase stability.
• It paves the way for more efficient biological hyperspectral analysis.