Quantum dot-enabled infrared hyperspectral imaging with single-pixel detection  

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作  者:Heyan Meng Yuan Gao Xuhong Wang Xianye Li Lili Wang Xian Zhao Baoqing Sun 

机构地区:[1]School of Information Sciences and Engineering,Shandong University,Qingdao,China [2]Center for Optics Research and Engineering(CORE),Key Laboratory of Laser&Infrared System(Shandong University),Ministry of Education,Shandong University,Qingdao,China [3]School of Mechanical,Electrical and Information Engineering,Shandong University,Weihai,China

出  处:《Light(Science & Applications)》2024年第6期1112-1121,共10页光(科学与应用)(英文版)

基  金:financially supported by the National Natural Science Foundation of China (62205180);the Natural Science Foundation of Shandong Province (ZR2022QF029);the Taishan Scholar Program of Shandong Province (Young Scientist);the Qilu Young Scientist Program of Shandong University.

摘  要:Near-infrared(NIR)hyperspectral imaging is a powerful technique that enables the capture of three-dimensional(3D)spectra-spatial information within the NIR spectral range,offering a wide array of applications.However,the high cost associated with InGaAs focal plane array(FPA)has impeded the widespread adoption of NIR hyperspectral imaging.Addressing this challenge,in this study,we adopt an alternative approach—single-pixel detection for NIR hyperspectral imaging.Our investigation reveals that single-pixel detection outperforms conventional FPA,delivering a superior signal-to-noise ratio(SNR)for both spectral and imaging reconstruction.To implement this strategy,we leverage self-assembled colloidal quantum dots(CQDs)and a digital micromirror device(DMD)for NIR spectral and spatial information multiplexing,complemented by single-pixel detection for simultaneous spectral and image reconstruction.Our experimental results demonstrate successful NIR hyperspectral imaging with a detection window about 600 nm and an average spectral resolution of 8.6 nm with a pixel resolution of 128×128.The resulting spectral and spatial data align well with reference instruments,which validates the effectiveness of our approach.By circumventing the need for expensive and bulky FPA and wavelength selection components,our solution shows promise in advancing affordable and accessible NIR hyperspectral imaging technologies,thereby expanding the range of potential applications.

关 键 词:SPECTRAL QUANTUM MIRROR 

分 类 号:TN219[电子电信—物理电子学]

 

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