Miniaturized spectrometers with a tunable van der Waals junction

Hoon Hahn Yoon, Henry A. Fernandez, Fedor Nigmatulin, Weiwei Cai, Zongyin Yang, Hanxiao Cui, Faisal Ahmed, Xiaoqi Cui, Md Gius Uddin, Ethan D. Minot, Harri Lipsanen, Kwanpyo Kim, Pertti Hakonen, Tawfique Hasan, Zhipei Sun

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


Miniaturized computational spectrometers, which can obtain incident spectra using a combination of device spectral responses and reconstruction algorithms, are essential for on-chip and implantable applications. Highly sensitive spectral measurement using a single detector allows the footprints of such spectrometers to be scaled down while achieving spectral resolution approaching that of benchtop systems. We report a high-performance computational spectrometer based on a single van der Waals junction with an electrically tunable transport-mediated spectral response. We achieve high peak wavelength accuracy (~0.36 nanometers), high spectral resolution (~3 nanometers), broad operation bandwidth (from ~405 to 845 nanometers), and proof-of-concept spectral imaging. Our approach provides a route toward ultraminiaturization and offers unprecedented performance in accuracy, resolution, and operation bandwidth for single-detector computational spectrometers.

Original languageEnglish
Pages (from-to)296-299
Number of pages4
Issue number6617
Publication statusPublished - 2022 Oct 21

Bibliographical note

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© 2022 American Association for the Advancement of Science. All rights reserved.

All Science Journal Classification (ASJC) codes

  • General


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