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Updated: Oct 12, 2025

A Guide to Structured Illumination TIRF Microscopy at High Speed with Multiple Colors

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Quantum-illumination-inspired active single-pixel imaging with structured illumination.

Tiantian Zhang, Zhiyuan Ye, Hai-Bo Wang

|November 22, 2021

Summary

This summary is machine-generated.

Quantum-illumination-inspired single-pixel imaging (QII-SPI) enhances image quality by reducing stray light and improving signal-to-noise ratio. This adaptable method allows seamless switching between active and passive single-pixel imaging systems.

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Area of Science:

Optics and Photonics
Computational Imaging
Quantum Optics

Background:

Single-pixel imaging (SPI) systems often struggle with image quality degradation due to background and stray light.
Existing SPI techniques may require complex modifications or lack flexibility in adapting to varying environmental conditions.

Purpose of the Study:

To propose and validate a Quantum-Illumination-inspired Single-Pixel Imaging (QII-SPI) protocol.
To enhance image reconstruction quality in challenging environments with significant background and stray light.
To enable flexible conversion between active and passive SPI configurations.

Main Methods:

Utilizing a digital micro-mirror device (DMD) as both a structured light modulator and spatial light filter.
Implementing optical path reversibility to simultaneously filter stray light and modulate illumination.
Investigating the impact of relative coherence time on Hadamard-based SPI with thermal sources.

Main Results:

Achieved effective elimination of 50% of stray light.
Demonstrated a 6 dB gain in detection signal-to-noise ratio under equivalent loss conditions.
Obtained reconstruction results comparable to passive SPI, with minor detector repositioning.

Conclusions:

QII-SPI offers a robust solution for improving image quality in adverse lighting conditions.
The proposed method allows for facile switching between active and passive SPI modes without altering source-detector geometry.
This research provides novel insights into optical path design for SPI, promoting its practical application, especially in environments with stray light.