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Updated: Jul 24, 2025
10:13
A Technical Guide for Performing Spectroscopic Measurements on Metal-Organic Frameworks
Published on: April 28, 2023
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Metalens and microtaper spectrometers on a fingertip
Peixia Zheng1, Xuan Zhang1, Hong-Chao Liu2
1Institute of Applied Physics and Materials Engineering, University of Macau, Avenida da Universidade, Taipa, Macao SAR, China.
Light, Science & Applications
|July 5, 2023
Summary
Innovative millimeter-sized devices using a multi-foci metalens and leaky-mode microtaper enable high-resolution, wideband spectroscopy. This breakthrough advances the commercialization of portable, on-fingertip spectrometers for diverse applications.
Area of Science:
- Optics and Photonics
- Spectroscopy
- Nanotechnology
Background:
- Miniaturization of spectroscopic devices is crucial for portable and on-site analysis.
- Achieving high-resolution and wideband spectral measurements in small form factors presents significant challenges.
Purpose of the Study:
- To develop innovative millimeter-sized platforms for high-resolution, wideband spectroscopy.
- To explore the potential of multi-foci metalenses and leaky-mode microtapers for advanced spectroscopic applications.
Main Methods:
- Fabrication and characterization of a multi-foci metalens.
- Integration of the metalens with a leaky-mode microtaper.
- Testing the performance of the combined device for spectral analysis.
Main Results:
- Demonstration of high-resolution spectral measurements across a wide bandwidth.
- Successful operation within a millimeter-sized device footprint.
- Validation of the multi-foci metalens and microtaper as effective spectroscopic platforms.
Conclusions:
- The developed millimeter-sized spectroscopic device offers a promising solution for on-fingertip applications.
- The combination of multi-foci metalenses and leaky-mode microtapers facilitates commercialization of portable spectrometers.
- This technology opens new avenues for advanced optical sensing and analysis.
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