Compact metalens-based integrated imaging devices for near-infrared microscopy

Area of Science:

• Optics and Photonics
• Nanotechnology
• Biomedical Imaging

Background:

• Miniaturization of optical systems is crucial for advanced technologies.
• Metalenses offer precise control over light polarization, phase, and amplitude using subwavelength nanostructures.
• Compact metalens-integrated devices remain underexplored despite metalens advancements.

Purpose of the Study:

• To present compact imaging devices for near-infrared microscopy utilizing metalenses.
• To investigate the performance of these devices, including resolution, magnification, and image quality.
• To explore further miniaturization by integrating metalenses directly onto CMOS imaging sensors for biomedical applications.

Main Methods:

• Development of compact imaging devices incorporating metalenses.
• Imaging of intestinal cell specimens to evaluate resolution, magnification, and image quality.
• Research into direct integration of metalenses onto CMOS sensors for enhanced device compactness.

Main Results:

• Demonstrated the effectiveness of metalenses in compact near-infrared microscopy systems.
• Verified overall system performance through imaging of biological specimens.
• Explored the feasibility of metalens-CMOS integration for highly compact devices.

Conclusions:

• Metalenses provide a viable approach for constructing compact imaging devices.
• The developed systems show promise for near-infrared microscopy and other miniaturized optical applications.
• This work contributes to the ongoing trend of miniaturization in optical systems.