Miniaturized spectrometers with a tunable van der Waals junction-Reference-Cited by-同舟云学术

Miniaturized spectrometers with a tunable van der Waals junction

Published:2022-10-21 Issue:6617 Volume:378 Page:296-299
ISSN:0036-8075
Container-title:Science
language:en
Short-container-title:Science

Author:

Yoon Hoon Hahn¹²^ORCID,Fernandez Henry A.¹²^ORCID,Nigmatulin Fedor¹²^ORCID,Cai Weiwei³^ORCID,Yang Zongyin⁴^ORCID,Cui Hanxiao⁵^ORCID,Ahmed Faisal¹^ORCID,Cui Xiaoqi¹²^ORCID,Uddin Md Gius¹²^ORCID,Minot Ethan D.⁶,Lipsanen Harri¹^ORCID,Kim Kwanpyo⁷^ORCID,Hakonen Pertti²^ORCID,Hasan Tawfique⁸^ORCID,Sun Zhipei¹²^ORCID

Affiliation:

1. Department of Electronics and Nanoengineering, Aalto University, Espoo 02150, Finland.

2. QTF Centre of Excellence, Department of Applied Physics, Aalto University, Aalto 00076, Finland.

3. Key Lab of Education Ministry for Power Machinery and Engineering, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China.

4. College of Information Science and Electronic Engineering and State Key Laboratory of Modern Optical Instrumentation, Zhejiang University, Hangzhou 310027, China.

5. School of Aeronautics and Astronautics, Sichuan University, Chengdu 610065, China.

6. Department of Physics, Oregon State University, Corvallis, OR 97331, USA.

7. Department of Physics, Yonsei University, Seoul 03722, Republic of Korea.

8. Cambridge Graphene Centre, University of Cambridge, Cambridge CB3 0FA, UK.

Abstract

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.

Publisher

American Association for the Advancement of Science (AAAS)

Subject

Multidisciplinary

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