Dual‐Channel Electrostatically Actuated MEMS Fabry–Perot Filtering Module for Near‐Infrared Spectroscopic Detection DOI
Siqi Liu, Wei Zhang, Jiahang Zhang

et al.

Advanced Materials Technologies, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 11, 2024

Abstract MEMS‐based Fabry–Perot filter components (MEMS‐FPC) have garnered significant attention in the field of micro‐spectrometers due to their ability perform high‐efficiency spectral analysis at microscale. However, achieving optimal peak transmission performance across a broad range remains core challenge development MEMS‐FPC modules. In this work, novel dual‐channel is presented, electrostatically actuated NIR module that overcomes limitations electrostatic tuning detection through integration an innovative structure and filtering. Fabricated using wafer‐level bulk micromachining techniques, enables continuous precise under driving voltage 0–40 V. The two channels cover ranges 814–946 nm 968–1211 nm, respectively, transmittance over 79% with full‐width half maximum (FWHM) values ranging from 7.59 43.29 setting new standard for range. results demonstrate potential as high‐performance sensor, demonstrating its future application microspectrometer when integrated commercial CCDs. With low power consumption compact size, well‐suited into portable devices such smartphones drones, offering real‐time sensing capabilities.

Language: Английский

Advances in Miniaturized Computational Spectrometers DOI Creative Commons
Qian Xue, Yang Yang,

Wenkai Ma

et al.

Advanced Science, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 30, 2024

Abstract Miniaturized computational spectrometers have emerged as a promising strategy for miniaturized spectrometers, which breaks the compromise between footprint and performance in traditional by introducing resources. They attracted widespread attention variety of materials, optical structures, photodetectors are adopted to fabricate with cooperation reconstruction algorithms. Here, comprehensive review focusing on two crucial components: spectral encoding algorithms provided. Principles, features, recent progress strategies summarized detail, including space‐modulated, time‐modulated, light‐source encoding. The classified into deep learning algorithms, they carefully analyzed based mathematical models required reconstruction. Drawing from analysis components, cooperations them considered, figures merits highlighted, optimization improving their outlined, considerations operating these systems application achieve hyperspectral imaging is also discussed. Finally, insights potential future applications developments

Language: Английский

Citations

8
Nonlinear self-calibrated spectrometer with single GeSe-InSe heterojunction device DOI Creative Commons
Rana Darweesh, Rajesh Kumar Yadav,

E.L. Adler

et al.

Science Advances, Journal Year: 2024, Volume and Issue: 10(20)

Published: May 17, 2024

Computational spectrometry is an emerging field that uses photodetection in conjunction with numerical algorithms for spectroscopic measurements. Compact single photodetectors made from layered materials are particularly attractive since they eliminate the need bulky mechanical and optical components used traditional spectrometers can easily be engineered as heterostructures to optimize device performance. However, such typically nonlinear devices, which adds complexity extracting spectra their response. Here, we train artificial neural network recover full spectral photoresponse of a GeSe-InSe p-n heterojunction device. The has range 400 1100 nm, small footprint ~25 × 25 square micrometers, mean reconstruction error 2 10 −4 power spectrum at 0.35 nanometers. Using our device, demonstrate solution metamerism, apparent matching colors different distributions, fundamental problem imaging.

Language: Английский

Citations

6
An Inversely Designed Reconstructive Spectrometer on SiN Platform DOI
Ang Li, Feixia Bao, Yifan Wu

et al.

Laser & Photonics Review, Journal Year: 2024, Volume and Issue: 18(6)

Published: March 13, 2024

Abstract Reconstructive spectrometers, which leverage the compressive sensing technique and computational algorithm, are promising solutions for high‐performance integrated spectrometers. Among various options realizing reconstructive stratified waveguide filters (SWFs) have emerged as a particularly attractive choice due to their ultra‐compact size high performance. However, previous demonstrations of SWFs on silicon substrates suffered from suboptimal non‐reproducible spectrometer performance brute‐force random design approach. In this paper, applying bio‐inspired inverse algorithm system level multiple correlated is proposed. The allows precise optimized in order higher spectral resolution each SWF lower cross‐correlations between any two SWFs, overcoming limitations methods. effectiveness approach demonstrated by implementing nitride (SiN) platform, more thermally stable can support wider optical range than silicon.

Language: Английский

Citations

4
Monolithic Integrated Multi‐Parameter Light‐Field Sensor Based on Tailored Disordered Nanostructures DOI Open Access

Yingli Ha,

Lijun Wang, Yinghui Guo

et al.

Advanced Optical Materials, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 30, 2025

Abstract Light fields carry abundant information, including intensity, spectral, and polarization, which have been widely studied in imaging, quantum technologies, communications. However, conventional cameras are typically limited to capturing intensity alone, neglecting other crucial dimensions of restricts their application scope. Disordered nanostructures significantly enhance light scattering absorption, thereby broadening the spectral response range enabling sensitive detection multi‐dimensional physical angle, wavelength, polarization state. Here, by combining disordered with silicon‐on‐insulator (SOI) waveguides, an integrated light‐field sensor that integrates is successfully realized. The sensor, a compact integration footprint 32 × µm 2 , demonstrated angle resolution 3.2° within elevation angles ranging from −20° 20°, reconstruction 3.25 nm across wavelengths 1520 1550 nm. Additionally, azimuth state functionalities further validated. This multi‐parameter, highly design enhances performance photonic circuits (PICs) shows great potential for applications LIDAR, satellite communication, optical interconnection.

Language: Английский

Citations

0
Miniaturized spectroscopy and AI-driven probes in food industry automation DOI
Rani Puthukulangara Ramachandran,

Alain Clément,

Chyngyz Erkinbaev

et al.

Food Research International, Journal Year: 2025, Volume and Issue: unknown, P. 116646 - 116646

Published: May 1, 2025

Language: Английский

Citations

0
Development of a nondestructive prediction model for nutrient content of orchid leaves using different hyperspectral sensors DOI
Shuwen Deng, Lu Chen, Qingting Li

et al.

Computers and Electronics in Agriculture, Journal Year: 2025, Volume and Issue: 237, P. 110519 - 110519

Published: May 15, 2025

Language: Английский

Citations

0
Mid-infrared photodetector spectrometer concept based on ultrathin all-dielectric metamaterial with azimuth-incidence-angle tuned perfect optical absorption: Design and analysis DOI Creative Commons
Roy Avrahamy, Moshe Zohar,

Benny Milgrom

et al.

Materials & Design, Journal Year: 2024, Volume and Issue: 245, P. 113298 - 113298

Published: Sept. 1, 2024

Language: Английский

Citations

1
Unlocking New Opportunities for Crop Management Through Hyper Spectral Image Analysis DOI
Ranjeet Kumar,

Trapty Agarwal,

Deepak Mehta

et al.

Lecture notes in electrical engineering, Journal Year: 2024, Volume and Issue: unknown, P. 195 - 201

Published: Oct. 19, 2024

Language: Английский

Citations

0
Dual‐Channel Electrostatically Actuated MEMS Fabry–Perot Filtering Module for Near‐Infrared Spectroscopic Detection DOI
Siqi Liu, Wei Zhang, Jiahang Zhang

et al.

Advanced Materials Technologies, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 11, 2024

Abstract MEMS‐based Fabry–Perot filter components (MEMS‐FPC) have garnered significant attention in the field of micro‐spectrometers due to their ability perform high‐efficiency spectral analysis at microscale. However, achieving optimal peak transmission performance across a broad range remains core challenge development MEMS‐FPC modules. In this work, novel dual‐channel is presented, electrostatically actuated NIR module that overcomes limitations electrostatic tuning detection through integration an innovative structure and filtering. Fabricated using wafer‐level bulk micromachining techniques, enables continuous precise under driving voltage 0–40 V. The two channels cover ranges 814–946 nm 968–1211 nm, respectively, transmittance over 79% with full‐width half maximum (FWHM) values ranging from 7.59 43.29 setting new standard for range. results demonstrate potential as high‐performance sensor, demonstrating its future application microspectrometer when integrated commercial CCDs. With low power consumption compact size, well‐suited into portable devices such smartphones drones, offering real‐time sensing capabilities.

Language: Английский

Citations

0