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Updated: May 6, 2026

A TIRF Microscopy Technique for Real-time, Simultaneous Imaging of the TCR and its Associated Signaling Proteins

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Terahertz subwavelength single-pixel video based on computational imaging.

Rongbin She, Xiaoqing Luo, Junjie Huo

|November 11, 2025

Summary

This summary is machine-generated.

We developed a fast terahertz (THz) single-pixel imaging system for real-time video. This advanced system achieves high-resolution imaging and improved efficiency for practical applications.

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Area of Science:

Terahertz (THz) imaging
Optical engineering
Signal processing

Background:

Terahertz imaging offers unique capabilities for material analysis and security screening.
Existing terahertz imaging systems often face limitations in speed and resolution.
Advancements in single-pixel imaging techniques are crucial for overcoming these limitations.

Purpose of the Study:

To develop and validate a high-speed terahertz single-pixel video imaging system.
To improve imaging speed, resolution, and computational efficiency compared to existing methods.
To demonstrate the system's potential for real-time imaging applications.

Main Methods:

Utilized Hadamard and Fourier encoding schemes with a Si3N4/Si wafer modulator.
Achieved a modulation bandwidth of 6 kHz.
Implemented comprehensive theoretical modeling and experimental validation.

Main Results:

Attained subwavelength resolution of 1 mm and signal-to-noise ratios exceeding 20.
The Fourier method enabled video-rate terahertz imaging with high peak SNR and structural similarity.
Successfully demonstrated real-time detection of metal targets within paper.

Conclusions:

The developed terahertz single-pixel imaging system significantly enhances imaging speed and quality.
The system shows great promise for practical applications such as remote sensing and nondestructive evaluation.
Further optimization of sampling and reconstruction will improve frame rates and target recognition accuracy.