Retrieval of Absorption or Scattering Coefficient Spectrum (RASCS) Program: A Tool to Monitor Optical Properties in...

Area of Science:

• Biomedical optics
• Photonics
• Light propagation in turbid media

Background:

• Optical properties govern light interaction with turbid media such as biological tissues.
• Accurate recovery of optical properties is vital for numerous biomedical applications, including diagnostics and therapeutics.
• Existing methods often lack optimization for real-time measurements.

Purpose of the Study:

• To develop and validate a real-time algorithm for recovering optical properties of turbid media.
• To implement parallel computing for accelerated spectral analysis.
• To create a user-friendly interface for practical application.

Main Methods:

• Utilized the Inverse Adding Doubling program with reflectance measurements.
• Employed an integrating sphere and visible light spectrum.
• Implemented a parallel computing routine to process spectral data in independent threads.
• Developed a user-friendly interface in Visual Studio.

Main Results:

• Achieved high-precision recovery of absorption and scattering coefficient spectra within seconds.
• Demonstrated real-time monitoring capabilities for biomedical applications.
• Validated the algorithm using both living tissues and inorganic materials, showing expected spectral characteristics related to melanin, blood, and thermoregulation.

Conclusions:

• A novel algorithm for real-time optical property monitoring was successfully developed.
• The algorithm integrates parallel computing and a user-friendly interface.
• This advancement is beneficial for biomedical applications requiring immediate optical property assessment.