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Miniaturized spectral sensing with a tunable optoelectronic interface
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A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä
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en
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Science Advances, Volume 11, issue 4
Abstract
Reconstructive optoelectronic spectroscopy has generated substantial interest in the miniaturization of traditional spectroscopic tools, such as spectrometers. However, most state-of- the- art demonstrations face fundamental limits of rank deficiency in the photoresponse matrix. In this work, we demonstrate a miniaturized spectral sensing system using an electrically tunable compact optoelectronic interface, which generates distinguishable photoresponses from various input spectra, enabling accurate spectral identification with a device footprint of 5 micrometers by 5 micrometers. We report narrow-band spectral sensing with peak accuracies of ∼0.19 nanometers in free space and ∼2.45 nanometers on-chip. In addition, we implement broadband complex spectral sensing for material identification, applicable to organic dyes, metals, semiconductors, and dielectrics. This work advances high-performance, miniaturized optical spectroscopy for both free-space and on-chip applications, offering cost-effective solutions, broad applicability, and scalable manufacturing.
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Publisher Copyright: © 2025 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution License 4.0 (CC BY). | openaire: EC/H2020/872049/EU//IPN-Bio
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Cui, X, Nigmatulin, F, Wang, L, Reduto, I, Liapis, A C, Du, M, Uddin, M G, Mayeen, S A, Ahmed, F, Zhang, Y, Yoon, H H, Lipsanen, H, Honkanen, S, Aalto, T, Yang, Z, Hasan, T, Cai, W & Sun, Z 2025, 'Miniaturized spectral sensing with a tunable optoelectronic interface', Science Advances, vol. 11, no. 4, eads2846. https://doi.org/10.1126/sciadv.ado6886