GIST Scholar
College of Artificial Intelligence
Department of Semiconductor Engineering
1. Journal Articles
Miniaturized Spectral Sensing with a Tunable Optoelectronic Interface
- Type
- Article
- Citation
- Science Advances, v.11, no.4
- Issued Date
- 2025-01
- 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 similar to 0.19 nanometers in free space and similar to 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.
- Publisher
- AMER ASSOC ADVANCEMENT SCIENCE
- ISSN
- 2375-2548
- Appears in Collections:
- Department of Semiconductor Engineering > 1. Journal Articles
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