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Tu HT, Jiang AQ, Chen JK, Lu WJ, Zang KY, Tang HQ, Yoshie O, Xiang XD, Lee YP, Zhao HB, Zheng YX, Wang SY, Guo J, Zhang RJ, Li J, Yang YM, Lynch WD, Chen LY. A coma-free super-high resolution optical spectrometer using 44 high dispersion sub-gratings. Sci Rep 2021; 11:1093. [PMID: 33441851 PMCID: PMC7806747 DOI: 10.1038/s41598-020-80307-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Accepted: 12/18/2020] [Indexed: 01/02/2023] Open
Abstract
Unlike the single grating Czerny-Turner configuration spectrometers, a super-high spectral resolution optical spectrometer with zero coma aberration is first experimentally demonstrated by using a compound integrated diffraction grating module consisting of 44 high dispersion sub-gratings and a two-dimensional backside-illuminated charge-coupled device array photodetector. The demonstrated super-high resolution spectrometer gives 0.005 nm (5 pm) spectral resolution in ultra-violet range and 0.01 nm spectral resolution in the visible range, as well as a uniform efficiency of diffraction in a broad 200 nm to 1000 nm wavelength region. Our new zero-off-axis spectrometer configuration has the unique merit that enables it to be used for a wide range of spectral sensing and measurement applications.
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Affiliation(s)
- Hua-Tian Tu
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - An-Qing Jiang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
- Graduate School of IPS, Waseda University, Fukuoka, Japan
| | - Jian-Ke Chen
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Wei-Jie Lu
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Kai-Yan Zang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Hao-Qi Tang
- Department of Material Science and Engineering, SUSTC, Shenzhen, China
| | - Osamu Yoshie
- Graduate School of IPS, Waseda University, Fukuoka, Japan
| | - Xiao-Dong Xiang
- Department of Material Science and Engineering, SUSTC, Shenzhen, China
| | - Young-Pak Lee
- Department of Physics, Hanyang University, Seoul, Korea
| | - Hai-Bin Zhao
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Yu-Xiang Zheng
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Song-You Wang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Junpeng Guo
- Department of Electrical and Computer Engineering, University of Alabama in Huntsville, Huntsville, AL, 35899, USA
| | - Rong-Jun Zhang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Jing Li
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Yue-Mei Yang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - W D Lynch
- Department of Physics, Iowa State University, Ames, IA, USA
| | - Liang-Yao Chen
- Department of Optical Science and Engineering, Fudan University, Shanghai, China.
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Zhu Y, Wu XX, Jiang AQ, Li XF, Yang HL, Jiang WM. Single door laminoplasty plus posterior fusion for posterior atlantoaxial dislocation with congenital malformation: A case report and review of literature. World J Clin Cases 2020. [DOI: 10.12998/wjcc.v8.i23.6129] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
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Zhu Y, Wu XX, Jiang AQ, Li XF, Yang HL, Jiang WM. Single door laminoplasty plus posterior fusion for posterior atlantoaxial dislocation with congenital malformation: A case report and review of literature. World J Clin Cases 2020; 8:6136-6143. [PMID: 33344615 PMCID: PMC7723728 DOI: 10.12998/wjcc.v8.i23.6136] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 10/05/2020] [Accepted: 10/20/2020] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND Posterior atlantoaxial dislocation (PAD) is a rare type of upper cervical spine disease. We sought to describe a unreported case of old PAD with os odontoideum (OO) and atlas hypoplasia (AH) and our unique treatment approach consisting of C1 single door laminoplasty with C1-3 posterior fixation and fusion.
CASE SUMMARY A 70-year-old male patient who suffered from progressive aggravating numbness and limb weakness for 4 years without trauma, was diagnosed with old PAD with OO and AH. The patient underwent closed reduction and C1 single door laminoplasty with C1-3 posterior fixation and fusion instead of C1 laminectomy with occipitocervical fusion. During the 3-year follow-up, he was able to walk by himself instead of using a wheelchair and with a ± 25° range of head rotation as well as a ± 10° range of flexion-extension. Three-year follow-up images showed satisfactory reduction and fusion.
CONCLUSION C1 single door laminoplasty with cervical fusion in PAD combined with spinal cord compression could be a suitable and effective surgical option. Compared with laminectomy and occipitocervical fusion, it retains more cervical range of motion, has a smaller incision and provides an adequate bone grafting space for atlantoaxial fusion.
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Affiliation(s)
- Yi Zhu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu Province, China
| | - Xie-Xing Wu
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu Province, China
| | - An-Qing Jiang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu Province, China
| | - Xue-Feng Li
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu Province, China
| | - Hui-Lin Yang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu Province, China
| | - Wei-Min Jiang
- Department of Orthopaedic Surgery, The First Affiliated Hospital of Soochow University, Suzhou 215000, Jiangsu Province, China
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Jiang AQ, Zang KY, Tu HT, Chen JK, Lu WJ, Yoshie O, Wang XP, Xiang XD, Lee YP, Chen B, Zheng YX, Wang SY, Zhao HB, Yang YM, Chen LY. Ultrahigh-resolution spectrometer based on 19 integrated gratings. Sci Rep 2019; 9:10211. [PMID: 31308474 PMCID: PMC6629848 DOI: 10.1038/s41598-019-46792-7] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 07/05/2019] [Indexed: 11/17/2022] Open
Abstract
Optical spectrometers play a key role in acquiring rich photonic information in both scientific research and a wide variety of applications. In this work, we present a new spectrometer with an ultrahigh resolution of better than 0.012 nm/pixel in the 170–600 nm spectral region using a grating-integrated module that consists of 19 subgratings without any moving parts. By using two-dimensional (2D) backsideilluminated complementary metal-oxide-semiconductor (BSI-CMOS) array detector technology with 2048 × 2048 pixels, a high data acquisition speed of approximately 25 spectra per second is achieved. The physical photon-sensing size of the detector along the one-dimensional wavelength direction is enhanced by a factor of 19 to approximately 428 mm, or 38912 pixels, to satisfy the requirement of seamless connection between two neighboring subspectral regions without any missing wavelengths throughout the entire spectral region. As tested with a mercury lamp, the system has advanced performance capabilities characterized by the highest k parameter reported to date, being approximately 3.58 × 104, where k = (working wavelength region)/(pixel resolution). Data calibration and analysis as well as a method of reducing background noise more efficiently are also discussed. The results presented in this work will stimulate further research on precision spectrometers based on advanced BSI-CMOS array detectors in the future.
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Affiliation(s)
- An-Qing Jiang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China.,Graduate School of IPS, Waseda University, Fukuoka, Japan
| | - Kai-Yan Zang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Hua-Tian Tu
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Jian-Ke Chen
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Wei-Jie Lu
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Osamu Yoshie
- Graduate School of IPS, Waseda University, Fukuoka, Japan
| | - Xiao-Ping Wang
- Department of Material Science and Engineering, SUSTC, Shenzhen, China
| | - Xiao-Dong Xiang
- Department of Material Science and Engineering, SUSTC, Shenzhen, China
| | - Young-Pak Lee
- Department of Physics, Hanyang University, Seoul, Korea
| | | | - Yu-Xiang Zheng
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Song-You Wang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Hai-Bin Zhao
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Yue-Mei Yang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Liang-Yao Chen
- Department of Optical Science and Engineering, Fudan University, Shanghai, China.
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Zang KY, Yao Y, Hu ET, Jiang AQ, Zheng YX, Wang SY, Zhao HB, Yang YM, Yoshie O, Lee YP, Lynch DW, Chen LY. A High-Performance Spectrometer with Two Spectral Channels Sharing the Same BSI-CMOS Detector. Sci Rep 2018; 8:12660. [PMID: 30139954 PMCID: PMC6107652 DOI: 10.1038/s41598-018-31124-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2018] [Accepted: 08/13/2018] [Indexed: 11/30/2022] Open
Abstract
Optical spectrometers play an important role in modern scientific research. In this work, we present a two-channel spectrometer with a pixel resolution of better than 0.1 nm/pixel in the wavelength range of 200 to 950 nm and an acquisition speed of approximately 25 spectra per second. The spectrometer reaches a high k factor which characterizes the spectral performance of the spectrometer as k = (working wavelength region)/(pixel resolution) = 7500. Instead of using mechanical moving parts in traditional designs, the spectrometer consists of 8 integrated sub-gratings for diffracting and imaging two sets of 4-folded spectra on the upper and lower parts, respectively, of the focal plane of a two-dimensional backside-illuminated complementary metal-oxide-semiconductor (BSI-CMOS) array detector, which shows a high peak quantum efficiency of approximately 90% at 400 nm. In addition to the advantage of being cost-effective, the compact design of the spectrometer makes it advantageous for applications in which it is desirable to use the same two-dimensional array detector to simultaneously measure multiple spectra under precisely the same working conditions to reduce environmental effects. The performance of the finished spectrometer is tested and confirmed with an Hg-Ar lamp.
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Affiliation(s)
- Kai-Yan Zang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Yuan Yao
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Er-Tao Hu
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - An-Qing Jiang
- Graduate School of IPS, Waseda University, Fukuoka, Japan
| | - Yu-Xiang Zheng
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Song-You Wang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Hai-Bin Zhao
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Yue-Mei Yang
- Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - Osamu Yoshie
- Graduate School of IPS, Waseda University, Fukuoka, Japan
| | - Young-Pak Lee
- Department of Physics, Hanyang University, Seoul, Korea
| | - David W Lynch
- Department of Physics, Iowa State University, Ames, Iowa, USA
| | - Liang-Yao Chen
- Department of Optical Science and Engineering, Fudan University, Shanghai, China.
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Lu L, Jiang AQ, Yuan S, Yin LH, Huang WY, Fan WS. [The different effects of CaM inhibitors of phenothiazines on the proliferation of Saccharomyces cerevisiae and Schizosaccharomyces pombe]. Shi Yan Sheng Wu Xue Bao 2000; 33:141-9. [PMID: 12548977] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
Low concentration of phenothiazines apparently stimulated the proliferation of S. pombe, the cell density incubated for 54 hours by preincubating the cells with 20 mumol/L trifluoperazine (TFP) in the EMM-Ca medium was two times more than the control. The stimulation was more obvious with lowing the concentration of calcium in the culture medium, TFP cooperated and complemented with calcium in stimulating the proliferation of S. pombe. When the original inoculated cell density was 5 x 10(6) cells/ml or during the logarithm period of growth curve, the proliferation of S. pombe wasn't affected by the low concentration of TFP. While when the concentration of TFP was increased to 100 mumol/L, the promotion effect of TFP on proliferation of S. pombe declined obviously and the proliferation of S. pombe was inhibited completely when TFP up to 200 mumol/L. The cell proliferation also could be inhibited by CaM antagonist W7 and W7-agarose, the inhibition was increased with increasing the concentration of antagonist. On the other hand, 20 mumol/L TFP used by the same method as above arrested the cell division cycle of Saccharomyces cerevisiae at a single G2 + M nuclei stage, the cells was penetrated easily by TFP, the fluorescence in cells was very obvious when TFP was 20 mumol/L, but it was difficult to penetrat by TFP in the cells of S. pombe and the Ca2+ influx of S. pombe could be induced rapidly by 20 mumol/L TFP. In this article, the cause of different effects of TFP on cell proliferation of S. pombe and S. cerevisiae was discussed, it was due to the difference of penetration of TFP and stimulation by calcium in the two kinds of cells.
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Affiliation(s)
- L Lu
- Department of Biology, Nanjing Normal University, Nanjing 210097
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