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Advances in Optoelectronics and Micro/nano-optics最新文献

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The apodized index-thickness-modulated Bragg grating waveguide 折射率-厚度调制布拉格光栅波导
Advances in Optoelectronics and Micro/nano-optics Pub Date : 2010-12-01 DOI: 10.1109/AOM.2010.5713554
B. Jafarian, N. Nozhat, N. Granpayeh
{"title":"The apodized index-thickness-modulated Bragg grating waveguide","authors":"B. Jafarian, N. Nozhat, N. Granpayeh","doi":"10.1109/AOM.2010.5713554","DOIUrl":"https://doi.org/10.1109/AOM.2010.5713554","url":null,"abstract":"Different configurations of Bragg grating waveguides have been investigated in this paper by the finite-difference time-domain (FDTD) method. By changing the configuration of the gratings, various photonic band-gap widths can be achieved. Moreover the apodized plasmonic metal-insulator-metal (MIM) Bragg grating waveguides whose bandgaps are smoother than the same kind of simple ones are proposed, in order to suppress the side lobs.","PeriodicalId":222199,"journal":{"name":"Advances in Optoelectronics and Micro/nano-optics","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132138591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Theoretical investigation on influence of semiconductor substrate on transmission performance of epitaxially grown Fabry-Pérot filter 半导体衬底对外延生长法布里-普氏滤波器传输性能影响的理论研究
Advances in Optoelectronics and Micro/nano-optics Pub Date : 2010-12-01 DOI: 10.1109/AOM.2010.5713535
Wei Wang, Yongqing Huang, X. Duan, Jing-Wei Guo, Hui Huang, X. Ren, Shiwei Cai
{"title":"Theoretical investigation on influence of semiconductor substrate on transmission performance of epitaxially grown Fabry-Pérot filter","authors":"Wei Wang, Yongqing Huang, X. Duan, Jing-Wei Guo, Hui Huang, X. Ren, Shiwei Cai","doi":"10.1109/AOM.2010.5713535","DOIUrl":"https://doi.org/10.1109/AOM.2010.5713535","url":null,"abstract":"This paper investigates the influence of the GaAs substrate on the transmission performance of quarter-wave-stacks' Distributed Brag Reflector (DBR)-based Fabry-Pérot (F-P) filter formed by heteroepitaxial growth, using Transfer Matrix Method (TMM) theoretically. According to our simulation, the designed resonant transmission peak of the filter deteriorates by splitting up with the substrate thickness increasing; furthermore, a rapid oscillation of the Peak-Transmittivity (P-T) of the filter along with the alteration of the substrate thickness is also gained. Finally, a conclusion is achieved that a relatively acceptable transmission spectrum of the filter of this kind can be obtained by thinning the substrate down to a suitable thickness range through well-controlled grinding and polishing.","PeriodicalId":222199,"journal":{"name":"Advances in Optoelectronics and Micro/nano-optics","volume":"471 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115922788","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Correlations between green luminescence efficiency, intrinsic defects and co-doping Cl and S in ZnO phosphors ZnO荧光粉中Cl和S共掺杂与绿色发光效率、本征缺陷的关系
Advances in Optoelectronics and Micro/nano-optics Pub Date : 2010-12-01 DOI: 10.1109/AOM.2010.5713523
Yongneng Xiao, Huiqing Sun, Yi Xu, Shi-Tao Han
{"title":"Correlations between green luminescence efficiency, intrinsic defects and co-doping Cl and S in ZnO phosphors","authors":"Yongneng Xiao, Huiqing Sun, Yi Xu, Shi-Tao Han","doi":"10.1109/AOM.2010.5713523","DOIUrl":"https://doi.org/10.1109/AOM.2010.5713523","url":null,"abstract":"First-principles pseudo-potential approach on complete zinc oxide (ZnO), vacant O (ZnO∶V<inf>o</inf>), vacant Zn (ZnO∶V<inf>Zn</inf>), interstitial Zn (ZnO∶Zn<inf>i</inf>), chloride (Cl) and sulfur (S) co-doped defective ZnO (ZnO∶ClSV<inf>Zn</inf>, ZnO∶ClSZn<inf>i</inf>) reveal that V<inf>o</inf> is a shallow donor dopant which has nothing to do with green emission. V<inf>Zn</inf> and Zn<inf>i</inf> both induce green emission recombination levels in the gap. When Cl and S co-dope in defective ZnO, they will enhance the green emission luminescence intensity, because they can promote the formations of V<inf>Zn</inf> and Zn<inf>i</inf> defects.","PeriodicalId":222199,"journal":{"name":"Advances in Optoelectronics and Micro/nano-optics","volume":"102 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123585365","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Machining parameters selecting and optimization for fast tool servo considering the FTS dynamics 考虑FTS动力学的快速刀具伺服加工参数选择与优化
Advances in Optoelectronics and Micro/nano-optics Pub Date : 2010-12-01 DOI: 10.1109/AOM.2010.5713582
Fan Yang, Yi-fan Dai
{"title":"Machining parameters selecting and optimization for fast tool servo considering the FTS dynamics","authors":"Fan Yang, Yi-fan Dai","doi":"10.1109/AOM.2010.5713582","DOIUrl":"https://doi.org/10.1109/AOM.2010.5713582","url":null,"abstract":"Ultra-precision diamond turning with a fast tool servo (FTS) is one of the leading methodologies for the fabrication of optical surfaces. The selecting and optimization of machining parameters is one of the main factors that could influence the machining accuracy. A simple and feasible method to select and optimize the FTS machining parameters is presented in this paper. The primary meaning of this idea is that the machining parameters should match the FTS dynamics, that is, to select the parameters for higher fabricating efficiency but within the dynamical performance limits of the FTS. From a systemic viewpoint, a virtual machining Simulink model is built in which the designed surface data is used as the system input and the FTS dynamics as the control block, the responded output then can be considered as the virtual machining data. Though the simulation, the quantitative results to the designed shapes and machining shapes are achieved which are helpful to optimize the machining parameters. The surface data generation method for designed shape is discussed and the dynamical identification model of FTS actuator is given. An virtual machining example is also given in the end. The quantitative results indicate that the proposed method is feasible and effective, which can provide effective reference for the future real fabrication.","PeriodicalId":222199,"journal":{"name":"Advances in Optoelectronics and Micro/nano-optics","volume":"136 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123589398","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Infrared imaging system for reduction of defocus 用于减少离焦的红外成像系统
Advances in Optoelectronics and Micro/nano-optics Pub Date : 2010-12-01 DOI: 10.1109/AOM.2010.5713570
H. Bin, L. Jingzhen, W. Qingyang
{"title":"Infrared imaging system for reduction of defocus","authors":"H. Bin, L. Jingzhen, W. Qingyang","doi":"10.1109/AOM.2010.5713570","DOIUrl":"https://doi.org/10.1109/AOM.2010.5713570","url":null,"abstract":"Infrared imaging system with high resolution and large depth of focus play an important role in optical remote sensors. In this paper we design a phase mask infrared imaging system with ZEMAX optical software. The phase mask reduces the sensitivity of the infrared imaging system to the change of defocus. The infrared imaging system combines optical coding and image restoration to provide improved imaging performance and large depth of focus.","PeriodicalId":222199,"journal":{"name":"Advances in Optoelectronics and Micro/nano-optics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129393563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Influence of duty cycle on near-field diffraction of high-density gratings 占空比对高密度光栅近场衍射的影响
Advances in Optoelectronics and Micro/nano-optics Pub Date : 2010-12-01 DOI: 10.1109/AOM.2010.5713563
Anduo Hu, Changhe Zhou, Shaoqing Wang, Jianyong Ma, Wei Jia
{"title":"Influence of duty cycle on near-field diffraction of high-density gratings","authors":"Anduo Hu, Changhe Zhou, Shaoqing Wang, Jianyong Ma, Wei Jia","doi":"10.1109/AOM.2010.5713563","DOIUrl":"https://doi.org/10.1109/AOM.2010.5713563","url":null,"abstract":"Near-field intensity distributions of high-density amplitude gratings with period d=2.3λ and different duty cycles illuminated by TE and TM polarized waves are simulated by using the finite-difference time-domain method. Numerical results show that intensity distributions of in the grooves change differently when duty cycle varies for TE and TM polarizations. As duty cycle increases, peak intensity in the middle of the first bright stripes and its locations change obviously. The main reason of location variation of the first bright stripes is the variation of the phase difference between the ±2nd orders and the 0th order, which is verified by using rigorous coupled-wave analysis. The investigation of influence of duty cycle on near-field diffraction of high-density gratings should be helpful for practical applications of high-density gratings.","PeriodicalId":222199,"journal":{"name":"Advances in Optoelectronics and Micro/nano-optics","volume":"128 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128205706","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Light harvesting schemes for high-performance polymer solar cells 高性能聚合物太阳能电池的光收集方案
Advances in Optoelectronics and Micro/nano-optics Pub Date : 2010-12-01 DOI: 10.1109/AOM.2010.5713603
Fang‐Chung Chen, Yi Hung, Juh-Lih Wu
{"title":"Light harvesting schemes for high-performance polymer solar cells","authors":"Fang‐Chung Chen, Yi Hung, Juh-Lih Wu","doi":"10.1109/AOM.2010.5713603","DOIUrl":"https://doi.org/10.1109/AOM.2010.5713603","url":null,"abstract":"In this paper, we will present approaches for light harvesting for enhancing the performance of polymer solar cells. We have employed indium tin oxide (ITO) as an optical spacer in inverted structures. We have found that the optical interference effect led to spatial redistribution of the optical field in the devices, resulting in favorable distribution of photogenerated excitons. Therefore, the introduction of the ITO optical spacer at an appropriate thickness increased the short-circuit current density and the overall power conversion efficiency.","PeriodicalId":222199,"journal":{"name":"Advances in Optoelectronics and Micro/nano-optics","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129547370","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Thermal and optical properties of power LEDs 功率led的热学和光学特性
Advances in Optoelectronics and Micro/nano-optics Pub Date : 2010-12-01 DOI: 10.1109/AOM.2010.5713519
Fei Yin, W. Guo, Tianping Ding, Weiwei Yan, Desheng Cui
{"title":"Thermal and optical properties of power LEDs","authors":"Fei Yin, W. Guo, Tianping Ding, Weiwei Yan, Desheng Cui","doi":"10.1109/AOM.2010.5713519","DOIUrl":"https://doi.org/10.1109/AOM.2010.5713519","url":null,"abstract":"With the increased efficiency of high power LED, the thermal design of the device used LEDs become more important. In this paper, four kinds of white power LEDs were selected, and the aim of this study was to compare the thermal and optical properties of the white power LEDs from different LED vendors, and to find LEDs with the optimal properties. Moreover, each group of LEDs was made into bulbs of different watts, respectively. The characteristics of these bulbs are also tested, and the relationship between the temperature and the luminous efficiency is obtained.","PeriodicalId":222199,"journal":{"name":"Advances in Optoelectronics and Micro/nano-optics","volume":"95 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130616019","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Dislocation and temperature effects on zero-bias resistance-area product of InGaSb PIN photodiodes 位错和温度对InGaSb PIN光电二极管零偏置电阻面积积的影响
Advances in Optoelectronics and Micro/nano-optics Pub Date : 2010-12-01 DOI: 10.1109/AOM.2010.5713509
M. Tanzid, F. M. Mohammedy
{"title":"Dislocation and temperature effects on zero-bias resistance-area product of InGaSb PIN photodiodes","authors":"M. Tanzid, F. M. Mohammedy","doi":"10.1109/AOM.2010.5713509","DOIUrl":"https://doi.org/10.1109/AOM.2010.5713509","url":null,"abstract":"The effects of dislocation and temperature on zero-bias resistance-area product (R0A) of InGaSb PIN photodiodes are analyzed using a model which takes into account the dislocation and temperature dependence of minority carrier lifetime and the effect of space charge density around the dislocation core. Dislocation tends to decrease the zero-bias resistance-area product by adding shunt impedance paths for dark current flow as well as by reducing the minority carrier lifetime. Through the dislocation and temperature dependant modeling, maximum R0A is found to be 1.85 Ω cm2 at 139 K for InGaSb PIN photodiodes. Theoretical results are fitted with experimental data obtained at 300 K and 363 K.","PeriodicalId":222199,"journal":{"name":"Advances in Optoelectronics and Micro/nano-optics","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130977602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Detection of water pollution by sonoluminescence technology 声致发光技术在水污染检测中的应用
Advances in Optoelectronics and Micro/nano-optics Pub Date : 2010-12-01 DOI: 10.1109/AOM.2010.5713546
Ying Shen, Chunsheng Yan
{"title":"Detection of water pollution by sonoluminescence technology","authors":"Ying Shen, Chunsheng Yan","doi":"10.1109/AOM.2010.5713546","DOIUrl":"https://doi.org/10.1109/AOM.2010.5713546","url":null,"abstract":"In recent years, water pollution detection has been global issues, especially for metal and organic pollution. And the phenomenon of ultrasonic cavitation has been widely used in the decades. In this paper, a method of detector water pollution by using sonoluminescence is introduced and some results are showed and analyzed.","PeriodicalId":222199,"journal":{"name":"Advances in Optoelectronics and Micro/nano-optics","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126791670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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