Hyperspectral Fourier transform spectrometer for reflection spectroscopy and spectral self-interference fluorescence...

Area of Science:

• Spectroscopy
• Biophysics
• Optical Engineering

Background:

• Studying biomolecular conformation on surfaces is crucial for understanding biological processes.
• Existing hyperspectral imaging techniques may lack the specificity for detailed biomolecular analysis.
• Optically reflecting surfaces present unique challenges for optical measurements.

Purpose of the Study:

• To develop and present a novel hyperspectral Fourier transform spectrometer.
• To enable the study of biological material bound to optically reflecting surfaces.
• To determine the conformation of biomolecules using a hybrid measurement technique.

Main Methods:

• Development of a hyperspectral Fourier transform spectrometer with two operational modes: white-light reflection and spectral self-interference fluorescence.
• Integration of these two modes to provide complementary information.
• Theoretical performance projections and system description.

Main Results:

• Demonstration of a hybrid white-light reflection and spectral self-interference fluorescence measurement capability, novel for hyperspectral imaging.
• Proof-of-principle measurements using artificial samples.
• Successful acquisition of data indicative of biomolecular conformation.

Conclusions:

• The developed hybrid hyperspectral imager is the first of its kind, combining reflection and fluorescence modes.
• This instrument provides a new method for analyzing biomolecular conformation on reflective substrates.
• The technique shows promise for advancing biological material characterization.