Pub Date : 2019-04-01DOI: 10.1109/IranianCEE.2019.8786391
Negar Chitgar, H. Jazayeriy, M. Rabiei
The incredible rise of virtualization technology in cloud environments results the fostering workload which needs services provided by cloud resources. Task scheduling and Load balancing amongst the VMs and minimizing the makespan of the tasks are stimulating research concerns. In this paper, a method was introduced for scheduling workload based on VM grouping in cloud environments. The aim of the proposed method is improving cloud computing performance by reducing makespan and response time, and also through increasing VMs utilization. We evaluated the proposed algorithm with existing methods using various performance metrics. Evaluation results show that our proposed algorithm outperforms similar methods.
{"title":"Improving Cloud Computing Performance Using Task Scheduling Method Based on VMs Grouping","authors":"Negar Chitgar, H. Jazayeriy, M. Rabiei","doi":"10.1109/IranianCEE.2019.8786391","DOIUrl":"https://doi.org/10.1109/IranianCEE.2019.8786391","url":null,"abstract":"The incredible rise of virtualization technology in cloud environments results the fostering workload which needs services provided by cloud resources. Task scheduling and Load balancing amongst the VMs and minimizing the makespan of the tasks are stimulating research concerns. In this paper, a method was introduced for scheduling workload based on VM grouping in cloud environments. The aim of the proposed method is improving cloud computing performance by reducing makespan and response time, and also through increasing VMs utilization. We evaluated the proposed algorithm with existing methods using various performance metrics. Evaluation results show that our proposed algorithm outperforms similar methods.","PeriodicalId":6683,"journal":{"name":"2019 27th Iranian Conference on Electrical Engineering (ICEE)","volume":"54 1","pages":"2095-2099"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88411072","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}
Pub Date : 2019-04-01DOI: 10.1109/IranianCEE.2019.8786749
Mojtaba Hadi Barhaghtalab, Saleh Mobayen, Farshad Merrikh-Bavat
In this research, an LMI-based global sliding mode controller law with a novel switching function for the sliding surface using hyperbolic functions is presented and is used for stabilization and robustness of three-dimensional nonlinear systems with uncertainty. The asymptotic stability of the system's state variables is guaranteed by Linear Matrix Inequality (LMI) and furthermore, considering the uncertainty and nonlinear terms, the reaching phase of the sliding surface is deleted. Finally, the proposed control technique is implemented on Genesio-Tesi chaotic system and the results of the simulation are analyzed.
{"title":"Design of a Global Sliding Mode Controller Using Hyperbolic Functions for Nonlinear Systems and Application in Chaotic Systems","authors":"Mojtaba Hadi Barhaghtalab, Saleh Mobayen, Farshad Merrikh-Bavat","doi":"10.1109/IranianCEE.2019.8786749","DOIUrl":"https://doi.org/10.1109/IranianCEE.2019.8786749","url":null,"abstract":"In this research, an LMI-based global sliding mode controller law with a novel switching function for the sliding surface using hyperbolic functions is presented and is used for stabilization and robustness of three-dimensional nonlinear systems with uncertainty. The asymptotic stability of the system's state variables is guaranteed by Linear Matrix Inequality (LMI) and furthermore, considering the uncertainty and nonlinear terms, the reaching phase of the sliding surface is deleted. Finally, the proposed control technique is implemented on Genesio-Tesi chaotic system and the results of the simulation are analyzed.","PeriodicalId":6683,"journal":{"name":"2019 27th Iranian Conference on Electrical Engineering (ICEE)","volume":"1614 1","pages":"1030-1034"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86510277","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}
Pub Date : 2019-04-01DOI: 10.1109/IranianCEE.2019.8786587
Negar Mashhadi Seyyed Abadi, M. Banihashemi, A. Kashaninia
In perovskite solar cells, (FAPbI3)0.85(MAPbBr3)0.15as absorber layer has resulted in high stability over 1000 h under real outdoor conditions. In this paper, we used solar cell capacitance simulator (SCAPS-1D) to study the effect of various bandgaps and electron affinities of hole/electron transport material layers (HTM/ETM) on Voc, Jsc, fill factor (FF), and power conversion efficiency (PCE). This study defines the proper values of HTM/ETM bandgaps and electron affinities to have high PCE.
{"title":"Simulation and Analysis of a Perovskite Solar Cell with (FAPbI3)0.85(MAPbBr3)0.15 as Absorber Layer","authors":"Negar Mashhadi Seyyed Abadi, M. Banihashemi, A. Kashaninia","doi":"10.1109/IranianCEE.2019.8786587","DOIUrl":"https://doi.org/10.1109/IranianCEE.2019.8786587","url":null,"abstract":"In perovskite solar cells, (FAPbI<inf>3</inf>)<inf>0.85</inf>(MAPbBr<inf>3</inf>)<inf>0.15</inf>as absorber layer has resulted in high stability over 1000 h under real outdoor conditions. In this paper, we used solar cell capacitance simulator (SCAPS-1D) to study the effect of various bandgaps and electron affinities of hole/electron transport material layers (HTM/ETM) on V<inf>oc</inf>, J<inf>sc</inf>, fill factor (FF), and power conversion efficiency (PCE). This study defines the proper values of HTM/ETM bandgaps and electron affinities to have high PCE.","PeriodicalId":6683,"journal":{"name":"2019 27th Iranian Conference on Electrical Engineering (ICEE)","volume":"27 1","pages":"173-177"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87648021","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}
Pub Date : 2019-04-01DOI: 10.1109/IranianCEE.2019.8786721
Shaghayegh Mesforush, A. Jahanshahi, Mohesen Khajeh Zadeh
Polymerase chain reaction (PCR) is a method or device which is widely used in biology labs. Its main job is copying DNA segments. Micro-PCR is the term referring to the small-scale version of this device. It has several advantages including the minute reagent consumption and faster response times. One of the challenges in micro-PCR technology is creating uniform-temperature regions. Thin film heaters have been used in literature to create the needed temperature zones. In this work, printed circuit board (PCB) technology has been used to create meander-shaped micro heaters on FR-4 substrate. Two separate temperature zones have been designed on the substrate. In order to improve temperature uniformity in these areas, a uniform copper layer has been designed on the back of the substrate. Thanks to the double-sided PCB technology, having a uniform copper layer on the back of the substrate is trivial. To study the effect of the copper layer on temperature uniformity, a steady state thermal model has been developed using Ansys®Workbench. Based on the simulation results, the created model can successfully predict temperature distribution in these heat generation areas. Besides, it is shown that the copper layer will lead to more uniformity in temperature distribution.
{"title":"Finite element simulation of isothermal regions in serpentine shaped PCB electrodes of a micro-PCR device","authors":"Shaghayegh Mesforush, A. Jahanshahi, Mohesen Khajeh Zadeh","doi":"10.1109/IranianCEE.2019.8786721","DOIUrl":"https://doi.org/10.1109/IranianCEE.2019.8786721","url":null,"abstract":"Polymerase chain reaction (PCR) is a method or device which is widely used in biology labs. Its main job is copying DNA segments. Micro-PCR is the term referring to the small-scale version of this device. It has several advantages including the minute reagent consumption and faster response times. One of the challenges in micro-PCR technology is creating uniform-temperature regions. Thin film heaters have been used in literature to create the needed temperature zones. In this work, printed circuit board (PCB) technology has been used to create meander-shaped micro heaters on FR-4 substrate. Two separate temperature zones have been designed on the substrate. In order to improve temperature uniformity in these areas, a uniform copper layer has been designed on the back of the substrate. Thanks to the double-sided PCB technology, having a uniform copper layer on the back of the substrate is trivial. To study the effect of the copper layer on temperature uniformity, a steady state thermal model has been developed using Ansys®Workbench. Based on the simulation results, the created model can successfully predict temperature distribution in these heat generation areas. Besides, it is shown that the copper layer will lead to more uniformity in temperature distribution.","PeriodicalId":6683,"journal":{"name":"2019 27th Iranian Conference on Electrical Engineering (ICEE)","volume":"31 1","pages":"280-284"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75886603","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}
Pub Date : 2019-04-01DOI: 10.1109/IranianCEE.2019.8786670
Soorena Zohoori, Tahereh Shafiei, M. Dolatshahi
In this paper, a transimpedance amplifier (TIA) for 5Gbps applications in 90nm CMOS technology is proposed. The proposed TIA is based on a regulated cascade (RGC) structure. This TIA is designed fully with transistor, which occupies small area on chip, and operates at 5Gbps by consuming only 274µW. Simulation results in HSPICE using 90nm CMOS technology parameters shows 40.9dBΩ transimpedance gain, 4GHz bandwidth and 835nArms (13.2pA/√Hz) input referred noise using 1v supply voltage. Analysis and simulations indicate that the proposed TIA is suitable to work as a low-power building block in analog front ends.
{"title":"A 274µW, Inductor-less, Active RGC-Based Transimpedance Amplifier Operating at 5Gbps","authors":"Soorena Zohoori, Tahereh Shafiei, M. Dolatshahi","doi":"10.1109/IranianCEE.2019.8786670","DOIUrl":"https://doi.org/10.1109/IranianCEE.2019.8786670","url":null,"abstract":"In this paper, a transimpedance amplifier (TIA) for 5Gbps applications in 90nm CMOS technology is proposed. The proposed TIA is based on a regulated cascade (RGC) structure. This TIA is designed fully with transistor, which occupies small area on chip, and operates at 5Gbps by consuming only 274µW. Simulation results in HSPICE using 90nm CMOS technology parameters shows 40.9dBΩ transimpedance gain, 4GHz bandwidth and 835nArms (13.2pA/√Hz) input referred noise using 1v supply voltage. Analysis and simulations indicate that the proposed TIA is suitable to work as a low-power building block in analog front ends.","PeriodicalId":6683,"journal":{"name":"2019 27th Iranian Conference on Electrical Engineering (ICEE)","volume":"6 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82257720","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}
Pub Date : 2019-04-01DOI: 10.1109/IranianCEE.2019.8786688
Maryam Masoumi Estahbanati, G. Mirjalily
One of the most important tasks of the wireless terminals in heterogeneous wireless environments is selecting the best available network based on the quality of services. Considering the fact that multimedia applications are known to be high energy consumers and since the battery lifetime is an important factor for mobile users, multimedia wireless communication is the most challenging issue in the network selection. Enhanced power-friendly access network selection (E-POFANS) has been introduced to maintain an acceptable user perceived quality by selecting the network that consumes minimum energy. In this paper, to improve E-POFANS, the networks' behavior in the past is considered as a metric for network selection. Also, a mechanism to monitor the energy consumption of the mobile device is devised to guarantee that the multimedia stream is played the whole lot before the battery lifetime is finished. This solution achieves about 29% energy saving in comparison with E-POFANS. Through different simulations, we show that the proposed solutions improve the energy consumption and user's throughput, considerably.
{"title":"History-based Network Selection in Heterogeneous Wireless Multimedia Networks","authors":"Maryam Masoumi Estahbanati, G. Mirjalily","doi":"10.1109/IranianCEE.2019.8786688","DOIUrl":"https://doi.org/10.1109/IranianCEE.2019.8786688","url":null,"abstract":"One of the most important tasks of the wireless terminals in heterogeneous wireless environments is selecting the best available network based on the quality of services. Considering the fact that multimedia applications are known to be high energy consumers and since the battery lifetime is an important factor for mobile users, multimedia wireless communication is the most challenging issue in the network selection. Enhanced power-friendly access network selection (E-POFANS) has been introduced to maintain an acceptable user perceived quality by selecting the network that consumes minimum energy. In this paper, to improve E-POFANS, the networks' behavior in the past is considered as a metric for network selection. Also, a mechanism to monitor the energy consumption of the mobile device is devised to guarantee that the multimedia stream is played the whole lot before the battery lifetime is finished. This solution achieves about 29% energy saving in comparison with E-POFANS. Through different simulations, we show that the proposed solutions improve the energy consumption and user's throughput, considerably.","PeriodicalId":6683,"journal":{"name":"2019 27th Iranian Conference on Electrical Engineering (ICEE)","volume":"1 1","pages":"1408-1412"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80206477","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}
Pub Date : 2019-04-01DOI: 10.1109/IranianCEE.2019.8786405
S. Hamedi, A. Gharavi
In this paper, polymer-based channel waveguides on azo chromophores with direct-laser writing technique is presented. The waveguides were written with a low power continuous-wave 532 nm laser in the absorption spectrum of the polymer. The optical properties of the waveguide were analyzed. The experimental results showed that the written waveguides have Gaussian refractive index profile in the lateral direction. It was shown that the refractive index of the waveguide have linear relation to the writing laser power. From the ATR spectrum we measured a difference of about 0.009 in the index between waveguide and slab which is given by slight angle shift in the coupled modes.
{"title":"Polymer-Based Channel Waveguides with Direct-Laser Writing Technique","authors":"S. Hamedi, A. Gharavi","doi":"10.1109/IranianCEE.2019.8786405","DOIUrl":"https://doi.org/10.1109/IranianCEE.2019.8786405","url":null,"abstract":"In this paper, polymer-based channel waveguides on azo chromophores with direct-laser writing technique is presented. The waveguides were written with a low power continuous-wave 532 nm laser in the absorption spectrum of the polymer. The optical properties of the waveguide were analyzed. The experimental results showed that the written waveguides have Gaussian refractive index profile in the lateral direction. It was shown that the refractive index of the waveguide have linear relation to the writing laser power. From the ATR spectrum we measured a difference of about 0.009 in the index between waveguide and slab which is given by slight angle shift in the coupled modes.","PeriodicalId":6683,"journal":{"name":"2019 27th Iranian Conference on Electrical Engineering (ICEE)","volume":"26 1","pages":"15-17"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81686064","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}
Pub Date : 2019-04-01DOI: 10.1109/IranianCEE.2019.8786722
Mahmoud Tayebi, A. Dastranj, A. Alighanbari
In this paper, a tapered triangular corrugated edge antipodal vivaldi antenna (TTCE-AVA) is presented. The total size of the antenna is 49.5 × 57 mm2and it operates in a bandwidth of almost five octaves, from 1.3GHz to 44GHz. The introduced technique will result in ultra-wide bandwidth while having a small size compare to other works. To achieve this, first, a minimum-size conventional antipodal vivaldi antenna (CAVA) is designed, with respect to the tradeoff between the lowest operating frequency and the substrate dielectric constant. Then, the low end operating frequency is extended and the gain over the entire frequency bandwidth was enhanced, by adding two circular-shape loads (CL) to the CAVA. The reflection coefficient of the resulting CL-AVA is then improved, by applying a tapered triangular corrugation at the edges (TTCE) of the circular sections. The resulting TTCE-AVA is manufactured and tested. The simulation and experimental results demonstrate excellent performance in an ultra-wide frequency band from 1.3 to 44 GHz.
{"title":"Ultra Wide Band Antipodal Vivaldi Antenna with Tapered Triangular Corrugated Edges","authors":"Mahmoud Tayebi, A. Dastranj, A. Alighanbari","doi":"10.1109/IranianCEE.2019.8786722","DOIUrl":"https://doi.org/10.1109/IranianCEE.2019.8786722","url":null,"abstract":"In this paper, a tapered triangular corrugated edge antipodal vivaldi antenna (TTCE-AVA) is presented. The total size of the antenna is 49.5 × 57 mm2and it operates in a bandwidth of almost five octaves, from 1.3GHz to 44GHz. The introduced technique will result in ultra-wide bandwidth while having a small size compare to other works. To achieve this, first, a minimum-size conventional antipodal vivaldi antenna (CAVA) is designed, with respect to the tradeoff between the lowest operating frequency and the substrate dielectric constant. Then, the low end operating frequency is extended and the gain over the entire frequency bandwidth was enhanced, by adding two circular-shape loads (CL) to the CAVA. The reflection coefficient of the resulting CL-AVA is then improved, by applying a tapered triangular corrugation at the edges (TTCE) of the circular sections. The resulting TTCE-AVA is manufactured and tested. The simulation and experimental results demonstrate excellent performance in an ultra-wide frequency band from 1.3 to 44 GHz.","PeriodicalId":6683,"journal":{"name":"2019 27th Iranian Conference on Electrical Engineering (ICEE)","volume":"109 1","pages":"1637-1642"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80528522","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}
Pub Date : 2019-04-01DOI: 10.1109/IranianCEE.2019.8786690
S. Masoudian, V. Derhami, S. Zarifzadeh
Hierarchical text categorization is used in many real-world applications, such as webpage topic classification and product categorization. Large quantities of labeled training data are needed to build an accurate hierarchical classification model. However, labeled samples are difficult and very time-consuming to obtain. On the other hand, due to the expansion of the Internet, plenty of unlabeled documents are available. In this paper, we propose a top-down method to hierarchically categorize partially labeled documents (having labeled documents only at first few levels of the hierarchy) using “local classifier per parent node” approach. We utilize a classification algorithm for the parent nodes with training data available. We use a labeling strategy for other parent nodes that do not have labeled data to be able to train a classifier. In our knowledge, this is the first study on hierarchical Persian text categorization, and our experiments show that the proposed approach achieves an acceptable performance.
{"title":"Hierarchical Persian Text Categorization in Absence of Labeled Data","authors":"S. Masoudian, V. Derhami, S. Zarifzadeh","doi":"10.1109/IranianCEE.2019.8786690","DOIUrl":"https://doi.org/10.1109/IranianCEE.2019.8786690","url":null,"abstract":"Hierarchical text categorization is used in many real-world applications, such as webpage topic classification and product categorization. Large quantities of labeled training data are needed to build an accurate hierarchical classification model. However, labeled samples are difficult and very time-consuming to obtain. On the other hand, due to the expansion of the Internet, plenty of unlabeled documents are available. In this paper, we propose a top-down method to hierarchically categorize partially labeled documents (having labeled documents only at first few levels of the hierarchy) using “local classifier per parent node” approach. We utilize a classification algorithm for the parent nodes with training data available. We use a labeling strategy for other parent nodes that do not have labeled data to be able to train a classifier. In our knowledge, this is the first study on hierarchical Persian text categorization, and our experiments show that the proposed approach achieves an acceptable performance.","PeriodicalId":6683,"journal":{"name":"2019 27th Iranian Conference on Electrical Engineering (ICEE)","volume":"53 1","pages":"1951-1955"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89840175","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}
Pub Date : 2019-04-01DOI: 10.1109/IranianCEE.2019.8786691
Ali Poureslami, A. Salehi
The spectroscopy of several kinds of single-wall carbon nanotubes containing pure, functionalized with OH, COOH, and NH2 thin films were studied. The effect of electric filed on the spectroscopy using transparent and conductive Indium Tin Oxide (ITO) thin film was also investigated. We have found that the spectroscopy analysis obtained in this study can be used in fiber optic applications. The attenuation measurements have been done in the wavelength range of 1260-1640 nm for non- amplification, and 1520–1580 nm for optical amplification. The results of a configuration without optical amplification with +10 dBm power of broadband source showed that pure SWNT had 10 dB attenuation and the graph is flat in full band. The electrical filed applied to the SWNT did not have any effect on the spectroscopy. Other types of functionalized SWNT have tilt in attenuation behavior over a wavelength range. When the effect of optical amplification such as Erbium-Doped Fiber Amplifier (EDFA) with applied a power of +23 dBm was used, an attenuation with linear in amplification band and nonlinear behavior in boundaries of amplification band was observed.
{"title":"Spectroscopy Study of Single-Wall Carbon Nano-Tubes","authors":"Ali Poureslami, A. Salehi","doi":"10.1109/IranianCEE.2019.8786691","DOIUrl":"https://doi.org/10.1109/IranianCEE.2019.8786691","url":null,"abstract":"The spectroscopy of several kinds of single-wall carbon nanotubes containing pure, functionalized with OH, COOH, and NH2 thin films were studied. The effect of electric filed on the spectroscopy using transparent and conductive Indium Tin Oxide (ITO) thin film was also investigated. We have found that the spectroscopy analysis obtained in this study can be used in fiber optic applications. The attenuation measurements have been done in the wavelength range of 1260-1640 nm for non- amplification, and 1520–1580 nm for optical amplification. The results of a configuration without optical amplification with +10 dBm power of broadband source showed that pure SWNT had 10 dB attenuation and the graph is flat in full band. The electrical filed applied to the SWNT did not have any effect on the spectroscopy. Other types of functionalized SWNT have tilt in attenuation behavior over a wavelength range. When the effect of optical amplification such as Erbium-Doped Fiber Amplifier (EDFA) with applied a power of +23 dBm was used, an attenuation with linear in amplification band and nonlinear behavior in boundaries of amplification band was observed.","PeriodicalId":6683,"journal":{"name":"2019 27th Iranian Conference on Electrical Engineering (ICEE)","volume":"54 1","pages":"1392-1396"},"PeriodicalIF":0.0,"publicationDate":"2019-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90847845","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}
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