Three-dimensional imaging of optically opaque materials using nonionizing terahertz radiation

Area of Science:

• Physics
• Engineering
• Materials Science

Background:

• Terahertz (THz) electromagnetic radiation offers diverse applications.
• THz time-domain imaging provides unique capabilities for subsurface analysis.
• The ability of THz radiation to penetrate optically opaque materials is a key advantage.

Purpose of the Study:

• To explore specific three-dimensional applications of terahertz time-domain imaging.
• To highlight the utility of THz radiation in revealing subsurface information.
• To focus on 3D THz data in security, pharmaceutical, and biomedical fields.

Main Methods:

• Utilizing terahertz time-domain imaging techniques.
• Exploiting the penetration capabilities of terahertz radiation through various materials.
• Analyzing full three-dimensional terahertz data sets.

Main Results:

• Demonstrated the effectiveness of THz imaging in non-destructively accessing subsurface details.
• Showcased the penetration of THz waves through materials like clothing, plastics, and biological tissues.
• Presented 3D THz data illustrating applications in security screening, pharmaceutical quality control, and biomedical diagnostics.

Conclusions:

• Terahertz time-domain imaging is a powerful 3D tool for subsurface analysis.
• The technology has significant potential across security, pharmaceutical, and biomedical sectors.
• Further development of 3D THz imaging will enhance its practical applications.