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Related Experiment Video

Updated: Jun 7, 2025

High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings

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Published on: April 16, 2017

Multi-band microbolometer in CMOS technology.

Yiming Liao, Ke Wang, Wenbin Zhou

|November 14, 2024

Summary

This summary is machine-generated.

This study presents a novel multi-band detector using complementary metal-oxide-semiconductor (CMOS) technology for infrared (IR) and terahertz (THz) detection. The device offers high sensitivity and is suitable for cost-effective, high-density imaging arrays.

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Last Updated: Jun 7, 2025

High-resolution Thermal Micro-imaging Using Europium Chelate Luminescent Coatings

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Published on: April 16, 2017

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Published on: June 23, 2018

Area of Science:

Optoelectronics
Integrated Photonics
Sensor Technology

Background:

Multi-spectral imaging provides rich information but often relies on complex, expensive, and poorly integrated components.
Existing detectors may lack sensitivity or broad spectral coverage for diverse applications.

Purpose of the Study:

To demonstrate a novel antenna-coupled microbolometric detector capable of multi-band detection from infrared (IR) to terahertz (THz) spectra.
To leverage complementary metal-oxide-semiconductor (CMOS) technology for a low-cost, integrated solution.

Main Methods:

Fabrication of a microbolometric detector using CMOS technology.
Integration of a SiO2 absorption layer and an L-shaped fractal antenna for multi-band spectral response.
Characterization of detector performance in both THz and IR bands.

Main Results:

Achieved high sensitivity detection across both THz and IR bands.
Maximum detectivity of 5 x 10^8 cm·Hz^1/2/W at 305 GHz (THz band).
Maximum detectivity of 7 x 10^8 cm·Hz^1/2/W at 8.55 µm (IR band).

Conclusions:

The developed detector enables high-sensitivity, multi-spectral detection from IR to THz.
The CMOS-compatible design facilitates easy integration for high-density, low-cost array imaging.
This technology holds promise for advanced imaging systems requiring broad spectral information.