| 基于量子级联激光器照明的高对比度红外内窥成像 |
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| 引用本文： | 庾韬颖,袁一方,黎云轩,韩东,祝家滢.基于量子级联激光器照明的高对比度红外内窥成像[J].光子学报,2021(3):31-39. |
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| 作者姓名： | 庾韬颖 袁一方 黎云轩 韩东 祝家滢 |
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| 作者单位： | 国防科技创新研究院太赫兹生物物理学创新工作站;西安电子科技大学物理与光电工程学院;中国运载火箭技术研究院;天津大学精密仪器与光电子工程学院 |
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| 基金项目： | 国家自然科学基金(No.11622542)。 |
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| 摘 要： | 对单丝直径为20μm,12×9阵列方形面阵的Ge-As-Te-Se组分光纤束进行了测试,并开展红外成像研究.利用5～11μm连续可调谐红外量子级联激光器作为光源,对光纤束损耗进行检测,传输损耗平均为1 dB/cm.设计并加工了基于像方远心成像的紧凑型物镜,总长13.6 mm,直径6 mm,最终实现了2 mm×2 mm视...
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| 关 键 词： | 红外光学 光纤束 量子级联激光器 像方远心成像 对比度 |
High Contrast Imaging through Infrared Chalcogenide Imaging Fiber Bundle Illuminated by Quantum Cascade Laser |
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| YU Taoying,YUAN Yifang,LI Yunxuan,HAN Dong,ZHU Jiaying.High Contrast Imaging through Infrared Chalcogenide Imaging Fiber Bundle Illuminated by Quantum Cascade Laser[J].Acta Photonica Sinica,2021(3):31-39. |
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| Authors: | YU Taoying YUAN Yifang LI Yunxuan HAN Dong ZHU Jiaying |
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| Institution: | (Innovation Laboratory of Terahertz Biophysics,National Innovation Institute of Defense Technology,Beijing 100071,China;School of Physics and Optoelectronic Engineering,Xidian University,Xi′an 710071,China;China Academy of Launch Vehicle Technology,Beijing 100076,China;School of Precision Instrument and Optoelectronic Engineering,Tianjin University,Tianjin 300072,China) |
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| Abstract: | A fiber bundle made of 12×9 individual Ge-As-Te-Se fibers with a core diameter of 20 μm has been tested for optical properties and used to carry out the imaging experiment. A 5~11 μm continuous tunable quantum cascade laser has been used to test the bundle’s attenuation property with a cut-back method. The attenuation of bundle is nearly 1 dB/cm in the spectral region. A compact distal objective lens with length of 13.6 mm and diameter of 6 mm based on telecentric system has been designed and fabricated.The MTF of the lens showed the ablitity to transmit the image with resolution of 25 μm. A infrared image with 2 mm×2 mm and 100 μm resolution with quantum cascade lasers illumination,which has high power spectrum density and narrow linewidth, has been captured. A comparison experiment about the environmental temperature has been conducted illuminated by quantum cascade laser and incoherent black body,it proved that the quantum cascade laser illumination could help build a high SNR imaging under a high environmental temperature even above human’s temperature. It would be meaningful for the next infrared endoscopy experiment in vivo way. |
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| Keywords: | Infrared optics Fiber bundles Quantum cascade lasers Telecentric system Signal noise ratio |
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