Hyperspectral imaging using a microelectrical-mechanical-systems-based in-plane vibratory grating scanner with a...

Area of Science:

• Optics and Photonics
• Microelectromechanical Systems (MEMS)
• Imaging Technology

Background:

• Hyperspectral imaging systems are crucial for various applications but often face challenges with speed, cost, and form factor.
• Existing systems can suffer from performance degradation due to platform instability and complex mechanical designs.

Purpose of the Study:

• To introduce a novel single-photodetector hyperspectral imaging system.
• To demonstrate a high-speed, compact, and potentially low-cost spectral imaging solution.

Main Methods:

• The system employs a microelectrical-mechanical-systems (MEMS)-driven diffraction grating for fast spatial scanning.
• Two synchronized steering mirrors are used for slow spectral scanning.
• The operational principle is validated using a prototype developed with silicon microfabrication technology.

Main Results:

• The proposed configuration achieves high-speed scanning capabilities.
• The system design mitigates optical performance degradation caused by dynamic non-rigid-body deformation.
• A functional prototype was successfully developed and demonstrated.

Conclusions:

• The developed hyperspectral imaging system offers a promising approach for high-speed, compact, and cost-effective spectral data acquisition.
• This technology has significant potential for applications requiring efficient spectral analysis.