journal article·2025-05

Bandgap‐Engineered Semiconductors Spectrometers

Gongyuan Zhang, Zhi Ma, Hao Cui, Pan Wang, Feng Tang, Xin Ye, Rong Xiang, Bingfeng Ju, Hui‐Liang Shen, Shurong Dong, Jikui Luo, Qi Jie Wang, Shilong Pan, Ang Li, Zongyin Yang

Advanced Optical Materials· Volume 13· Issue 14
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Abstract

Abstract Spectrometers are vital analytical tools for measuring light spectra, crucial for applications ranging from environmental monitoring to biomedical diagnostics. A significant challenge in the miniaturization of these instruments is achieving efficient light dispersion in confined spaces. Traditional dispersion elements, such as gratings and prisms, require precise geometrical arrangements, rendering them unsuitable for compact designs. This study introduces a novel approach to light dispersion utilizing a bandgap‐graded semiconductor film, synthesized through a streamlined material preparation process. The film's intrinsic transmission properties enable effective light dispersion without the limitations imposed by optical interference, making it ideal for integration into miniaturized optical devices. The practical application of this technology is demonstrated through the development of a compact spectrometer capable of large‐field and microscopic spectral imaging. The investigation into light dispersion in engineered materials sets a new paradigm and lays the foundation for the design of optical systems.
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Research context

OpenAlex topics: Gas Sensing Nanomaterials and Sensors · GaN-based semiconductor devices and materials · Nanowire Synthesis and Applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Information Science & Electronics Engineering Zhejiang University 38 Zheda Road Hangzhou Zhejiang Province 310027 P.R.China

State Key Laboratory of Extreme Photonics and Instrumentation College of Optical Science and Engineering Zhejiang University 38 Zheda Road Hangzhou Zhejiang Province 310027 P.R.China

Mianyang Sci‐Tech City Institute of Photon Technology Mianyang Sichuan Province 621025 P.R.China

State Key Laboratory of Fluid Power and Mechatronic Systems School of Mechanical Engineering Zhejiang University 866 Yuhangtang Road Zhejiang Province Hangzhou 310058 P.R.China

Centre for OptoElectronics and Biophotonics School of Electrical and Electronic Engineering Nanyang Technological University 50 Nanyang Avenue Singapore 639798 Singapore

National Key Laboratory of Microwave Photonics Nanjing University of Aeronautics and Astronautics 29 Yudao Street Nanjing Jiangsu Province 210016 P.R.China

Funding

Key Technologies Research and Development Program · National Natural Science Foundation of China · National Research Foundation Singapore · Agency for Science, Technology and Research

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