Polarizer-Free AOTF-Based SWIR Hyperspectral Imaging for Biomedical Applications

Area of Science:

• Optics and Photonics
• Biomedical Engineering
• Spectroscopy

Background:

• Short-wave infrared (SWIR) optical biomedical imaging (0.9-1.7 μm) is a growing field.
• There is a need for cost-effective, robust hyperspectral imaging hardware in the SWIR range.
• Tunable-filter-based solutions offer flexibility and efficiency for hyperspectral data acquisition.

Discussion:

• Acousto-optical tunable filters (AOTFs) are well-suited for high-quality SWIR hyperspectral imaging due to their unique features.
• This paper presents a novel polarizer-free configuration of an imaging AOTF.
• The design is compact and simplifies integration into imaging systems.

Key Insights:

• The developed AOTF system offers a polarizer-free configuration for SWIR hyperspectral imaging.
• Image quality analysis confirmed the system's performance.
• Experimental validation demonstrated the efficiency of the assembled imager.

Outlook:

• The developed SWIR hyperspectral imager can be valuable for various applications, particularly in biomedical analyses.
• Further research can explore advanced applications and optimizations of this AOTF technology.
• This cost-effective solution can drive broader adoption of SWIR hyperspectral imaging.