SPECTROMETRY

作品数：461被引量：896H指数：12
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Standing-wave spectrometry in silicon nano-waveguides using reflection-based near-field scanning optical microscopy
《Chinese Physics B》2019年第1期306-312,共7页Yi-Zhi Sun Wei Ding Bin-Bin Wang Rafael Salas-Montiel Sylvain Blaize Renaud Bachelot Zhong-Wei Fan Li-Shuang Feng 
Project supported by National Key R&D Program of China(Grant No.2017YFA0303800);National Natural Science Foundation of China(Grant No.61575218);Defense Industrial Technology Development Program,China(Grant No.JCKY201601C006)
Utilizing reflection-based near-field scanning optical microscopy(NSOM) to image and analyze standing-wave patterns, we present a characterization technique potentially suitable for complex photonic integrated circuit...
关键词：NEAR-FIELD scanning optical MICROSCOPES integrated optics interferometry 
Determination of ethanol content in ethanol-gasoline based on derivative absorption spectrometry and information fusion
《Optoelectronics Letters》2018年第6期442-446,共5页ZHOU Kun-peng BAI Xu-fang BI Wei-hong 
supported by the National Key Research and Development Plan of China(No.2017YFC1403800);the Key Research and Development Plan of Hebei Province(No.18273302D);the Doctoral Research Fund of Inner Mongolia University for the Nationalities(No.BS432);the Research Project of Inner Mongolia University for Nationalities(No.NMDYB17162);the University Science Research Project of Inner Mongolia Autonomous Region
The ethanol content in ethanol-gasoline is respectively detected by the first-order derivative UV/vis absorption spectrum, the first-order derivative near infrared(NIR) absorption spectrum and the information fusion m...
关键词：DERIVATIVE ABSORPTION SPECTROMETRY information fusion ethanol-gasoline 
Development of a Novel Kilowatt Microwave Plasma Torch Source for Atomic Emission Spectrometry被引量：1
《Chemical Research in Chinese Universities》2017年第5期709-713,共5页ZHU Dan JIN Wei YU Bingwen YING Yangwei YU Haixiang SHAN Jin YAN Yuwei XU Chen WANG Baolai JIN Qinhan 
Traditional low power-microwave plasma torch（MPT） excitation source of atomic emission spectrometry was shown to be good for the introduction of dry aerosols, but poor for wet sample aerosols. In this work, some sig...
关键词：Kilowatt microwave plasma torch Coupling structure Direct sample aerosol introduction Atomic emis- sion spectrometry 
Correlation between types of defects/vacancies of Bi2S3 nanostructures and their transient photocurrent
《Nano Research》2017年第7期2405-2414,共10页Mingyang Liu Luqing Wang Pei Dong Liangliang Dong Xifan Wang Jarin Joyner Xiangjian Wan Boris I. Yakobson Robert Vajtai Pulickel Ajayan PolSpanos 
Crystalline nanostructures possess defects/vacancies that affect their physical and chemical properties. In this regard, the electronic structure of materials can be effectively regulated through defect engineering; t...
关键词：Bi2S3 microspheres nanorod assembly defects/vacancies positron annihilationspectrometry transient photocurrent 
A digitally generated ultrafine optical frequency comb for spectral measurements with 0.01-pm resolution and 0.7-μs response time被引量：6
《Light(Science & Applications)》2015年第1期306-312,共7页Yuan Bao Xingwen Yi Zhaohui Li Qingming Chen Jianping Li Xudong Fan Xuming Zhang 
Zhaohui Li acknowledges the support of the National Basic Research Programme of China(973)(Project No.2012CB315603);National High Technology 863 Research and Development Program of China(Nos.2013AA013300 and 2013AA013403);the Research Fund for the Doctoral Program of Higher Education of China(20124401110003);National Natural Science Foundation of China(NSFC)(Grant No.61435006);the Program for New Century Excellent Talents in University(NCET-12-0679)in China;Xuming Zhang acknowledges the NSFC(Grant No.61377068);the Hong Kong Research Grant Council(Grant Nos.PolyU 5327/11E and N_PolyU505/13);the Hong Kong Polytechnic University(Grant Nos.G-YN07,4-BCAL and G-YBBE).
Optical spectral measurements are crucial for optical sensors and many other applications,but the prevailing methods,such as optical spectrum analysis and tunable laser spectroscopy,often have to make compromises amon...
关键词：coherent detection digital signal process optical frequency combs optical sensors optical spectrometry 
Investigation of GaN-based dual-wavelength light-emitting diodes with p-type barriers and vertically stacked quantum wells
《Chinese Optics Letters》2012年第6期67-71,共5页陈峻 范广涵 庞玮 郑树文 张运炎 
supported by the National Natural Science Foundation of China (No. 61176043);the Fundfor Strategic and Emerging Industries of Guangdong Province (No. 2010A081002005);the Project of Combination of Production and Research by Guangdong Province and Ministry of Education of China (No.2010B090400192)
Designs of p-doped in quantum well （QW） barriers and specific number of vertically stacked QWs are proposed to improve the optical performance of GaN-based dual-wavelength light-emitting diodes （LEDs）. Emission sp...
关键词：Emission spectroscopy Gallium alloys Gallium nitride Phosphorus Semiconductor quantum wells SPECTROMETRY 
Quantum cascade laser-based spectrometer for high sensitive measurements of trace gases in air
《Chinese Optics Letters》2012年第4期33-35,共3页汤媛媛 刘文清 阚瑞峰 张玉钧 陈东 张帅 阮俊 
supported by the Main Direction Program of Knowledge Innovation of the Chinese Academy of Sciences(No.KGCX2-YW-121);the Strategic Priority Research Program of the Chinese Academy of Sciences(No.XDA05040102);the National"973"Program of China(No.2010CB234607)
A quantum cascade（QC）laser-based spectrometer is developed to measure trace gases in air.The proposed spectrometer is tested for N2O,and the results presented in this letter.This system takes advantage of recent tec...
关键词：GASES Quantum cascade lasers SPECTROMETRY 
Detection of the X-ray spectra of imploding neon Z-pinch with elliptically bent mica crystal spectrometer被引量：1
《Chinese Optics Letters》2008年第8期622-624,共3页施军 肖沙里 王洪建 黄显宾 杨礼兵 刘慎业 
the National Natural Science Foundation of China under Grant No.10576041.
A wide variety of X-ray and extreme ultraviolet diagnostics are being developed to study on Yang accelerator. An elliptically bent crystal spectrometer is designed with a focal length of 1350 mm. A mica crystal with a...
关键词：Helium Inert gases MICA NEON Particle accelerators Pinch effect Silicate minerals SPECTROMETERS SPECTROMETRY X ray spectrometers 
Laser mass spectrometry for high sensitive and multi-component analysis of exhaust gas from vehicles被引量：2
《Chinese Science Bulletin》2001年第1期86-88,共3页Liandi Zhang Jie Wei Haiyang Zheng Ziyao Li Zhuhong Xia Xuejun Gu Bin Zhang 
Laser mass spectrometry is a newly developed method for pollutant detection. It combines resonance-enhanced multiphoton ionization (REMPI) and time-of-flight mass spectro- metry (TOF-MS). It may detect pollutants with...
关键词：laser MASS SPECTROMETRY REMPI TOF-MS aromatics. 
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