Pub Date : 2016-08-18DOI: 10.1109/NUSOD.2016.7547088
Y. Nishidate, J. Kholopova, A. Kovalchuk, B. Shevchenko, I. Khmyrova, S. Shapoval
Light-emitting diode (LED) with nonuniform current injection caused by the mesh-like design of top metal electrode is studied numerically. Three-dimensional Laplace equation for electric potential is solved by finite element method. The numerical model incorporates mapped infinite element to account for potential decay far away from the LED structure and finite element model developed for boundary condition at semiconductor-air interface in the mesh opening. Simulation results demonstrate the effect of the mesh geometrical parameters on the total output power.
{"title":"Modeling of light-emitting diode with nonuniform current injection","authors":"Y. Nishidate, J. Kholopova, A. Kovalchuk, B. Shevchenko, I. Khmyrova, S. Shapoval","doi":"10.1109/NUSOD.2016.7547088","DOIUrl":"https://doi.org/10.1109/NUSOD.2016.7547088","url":null,"abstract":"Light-emitting diode (LED) with nonuniform current injection caused by the mesh-like design of top metal electrode is studied numerically. Three-dimensional Laplace equation for electric potential is solved by finite element method. The numerical model incorporates mapped infinite element to account for potential decay far away from the LED structure and finite element model developed for boundary condition at semiconductor-air interface in the mesh opening. Simulation results demonstrate the effect of the mesh geometrical parameters on the total output power.","PeriodicalId":425705,"journal":{"name":"2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)","volume":"71 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129655154","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 : 2016-08-18DOI: 10.1109/NUSOD.2016.7547013
G. J. Lee, Y. M. Song
In medical applications, a serpentine shaped metal electrode is widely used as the electrode of flexible and stretchable devices. Also, terahertz (THz) technology has been intense attraction for the medical applications due to the harmlessness to human body. Although the serpentine shaped metal electrode is used for bio-application electronic devices, it can also gain the electromagnetic characteristics through the resonance of geometrical inductance and capacitance. We therefore conducted a computational study of a serpentine shaped metamaterial (SSM) to investigate the electromagnetic response in THz using by commercial software (CST Microwave Studio). The detailed results will be discussed.
{"title":"Electromagnetic characteristics of serpentine shaped metamaterial in terahertz region","authors":"G. J. Lee, Y. M. Song","doi":"10.1109/NUSOD.2016.7547013","DOIUrl":"https://doi.org/10.1109/NUSOD.2016.7547013","url":null,"abstract":"In medical applications, a serpentine shaped metal electrode is widely used as the electrode of flexible and stretchable devices. Also, terahertz (THz) technology has been intense attraction for the medical applications due to the harmlessness to human body. Although the serpentine shaped metal electrode is used for bio-application electronic devices, it can also gain the electromagnetic characteristics through the resonance of geometrical inductance and capacitance. We therefore conducted a computational study of a serpentine shaped metamaterial (SSM) to investigate the electromagnetic response in THz using by commercial software (CST Microwave Studio). The detailed results will be discussed.","PeriodicalId":425705,"journal":{"name":"2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134499110","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 : 2016-08-18DOI: 10.1109/NUSOD.2016.7547098
S. Pickartz, U. Bandelow, S. Amiranashvili
A possibility to control an optical soliton by a much weaker second pulse that is scattered on the soliton attracted considerable attention recently. An important problem here is to quantify the small range of parameters at which the interaction takes place. This has been achived by using adiabatic ODEs for the soliton characteristics, which is much faster than a scan of the full propagation equations for all parameters in question.
{"title":"Numerical optimization of all-optical switching","authors":"S. Pickartz, U. Bandelow, S. Amiranashvili","doi":"10.1109/NUSOD.2016.7547098","DOIUrl":"https://doi.org/10.1109/NUSOD.2016.7547098","url":null,"abstract":"A possibility to control an optical soliton by a much weaker second pulse that is scattered on the soliton attracted considerable attention recently. An important problem here is to quantify the small range of parameters at which the interaction takes place. This has been achived by using adiabatic ODEs for the soliton characteristics, which is much faster than a scan of the full propagation equations for all parameters in question.","PeriodicalId":425705,"journal":{"name":"2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122156813","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 : 2016-08-18DOI: 10.1109/NUSOD.2016.7547082
W. Wang, F. Guo
The paper establishes a low temperature model based on the least square method. The Matlab software is used to fit the I-V curves. Some I-V response can be got through the model without low temperature test. Testing data have been validated by using the model and the fitting degree is rather highly.
{"title":"Low-temperature modeling of the quantum effect photodetectors","authors":"W. Wang, F. Guo","doi":"10.1109/NUSOD.2016.7547082","DOIUrl":"https://doi.org/10.1109/NUSOD.2016.7547082","url":null,"abstract":"The paper establishes a low temperature model based on the least square method. The Matlab software is used to fit the I-V curves. Some I-V response can be got through the model without low temperature test. Testing data have been validated by using the model and the fitting degree is rather highly.","PeriodicalId":425705,"journal":{"name":"2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125126963","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 : 2016-08-18DOI: 10.1109/NUSOD.2016.7547037
D. Kane, J. Toomey, C. McMahon, D. Little
We introduce an open-access online database containing high density datasets from various nonlinear laser systems as a resource for facilitating comparisons between theory and experiment, and for answering new research questions. The database is also useful in data science and machine learning.
{"title":"Open database from experimental laser systems — Resource for photonics simulations","authors":"D. Kane, J. Toomey, C. McMahon, D. Little","doi":"10.1109/NUSOD.2016.7547037","DOIUrl":"https://doi.org/10.1109/NUSOD.2016.7547037","url":null,"abstract":"We introduce an open-access online database containing high density datasets from various nonlinear laser systems as a resource for facilitating comparisons between theory and experiment, and for answering new research questions. The database is also useful in data science and machine learning.","PeriodicalId":425705,"journal":{"name":"2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)","volume":"105 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127655056","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 : 2016-08-18DOI: 10.1109/NUSOD.2016.7547036
D. Ray, A. Prabhakar
We investigated the transmittivity of a bull's eye grating using the plane wave expansion method. The parameters of the grating were optimized at 1550 nm. The grating has annular grooves with alternating layers of aluminum and air. The dispersion relation was obtained by expressing Maxwell's equations in cylindrical co-ordinates and solving the eigenvalue problem. We observe flat bands for frequencies below plasma frequency (ωp). COMSOL simulations were used to validate the eigenfrequencies at k → 0 in the band diagram.
{"title":"Plane wave analysis of bull's eye gratings","authors":"D. Ray, A. Prabhakar","doi":"10.1109/NUSOD.2016.7547036","DOIUrl":"https://doi.org/10.1109/NUSOD.2016.7547036","url":null,"abstract":"We investigated the transmittivity of a bull's eye grating using the plane wave expansion method. The parameters of the grating were optimized at 1550 nm. The grating has annular grooves with alternating layers of aluminum and air. The dispersion relation was obtained by expressing Maxwell's equations in cylindrical co-ordinates and solving the eigenvalue problem. We observe flat bands for frequencies below plasma frequency (ωp). COMSOL simulations were used to validate the eigenfrequencies at k → 0 in the band diagram.","PeriodicalId":425705,"journal":{"name":"2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116747317","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 : 2016-08-18DOI: 10.1109/NUSOD.2016.7547068
L. Piskorski, M. Marciniak, J. Walczak
We present the simulation results of threshold operation of mid-infrared GaSb-based vertical-cavity surface-emitting lasers obtained with the use of comprehensive fully self-consistent optical-electrical-thermal-recombination numerical model. The results show that by a proper design of the active region it is possible to achieve the stable single-fundamental-mode low-threshold operation with emission wavelengths longer than those reported so far for similar devices.
{"title":"Simulation and optimization of 2.6–2.8 μm GaSb-based vertical-cavity surface-emitting lasers","authors":"L. Piskorski, M. Marciniak, J. Walczak","doi":"10.1109/NUSOD.2016.7547068","DOIUrl":"https://doi.org/10.1109/NUSOD.2016.7547068","url":null,"abstract":"We present the simulation results of threshold operation of mid-infrared GaSb-based vertical-cavity surface-emitting lasers obtained with the use of comprehensive fully self-consistent optical-electrical-thermal-recombination numerical model. The results show that by a proper design of the active region it is possible to achieve the stable single-fundamental-mode low-threshold operation with emission wavelengths longer than those reported so far for similar devices.","PeriodicalId":425705,"journal":{"name":"2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132384996","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 : 2016-08-18DOI: 10.1109/NUSOD.2016.7547031
J. Shibayama, H. Kawai, J. Yamauchi, H. Nakano
A three-dimensional (3D) stub-type plasmonic filter is analyzed using the FDTD method based on the trapezoidal recursive convolution technique. The peak transmissivity of the 3D filter is calculated to be ≃50%, while the two-dimensional filter yields more than 90% transmissivity. To improve the transmissivity of the 3D filter, we insert a dielectric material into the stub section. It is found that the transmissivity is increased to more than 80% with the stub section being filled with SiC.
{"title":"Numerical investigation of a three-dimensional stub-type plasmonic filter","authors":"J. Shibayama, H. Kawai, J. Yamauchi, H. Nakano","doi":"10.1109/NUSOD.2016.7547031","DOIUrl":"https://doi.org/10.1109/NUSOD.2016.7547031","url":null,"abstract":"A three-dimensional (3D) stub-type plasmonic filter is analyzed using the FDTD method based on the trapezoidal recursive convolution technique. The peak transmissivity of the 3D filter is calculated to be ≃50%, while the two-dimensional filter yields more than 90% transmissivity. To improve the transmissivity of the 3D filter, we insert a dielectric material into the stub section. It is found that the transmissivity is increased to more than 80% with the stub section being filled with SiC.","PeriodicalId":425705,"journal":{"name":"2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)","volume":"16 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117077651","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 : 2016-08-18DOI: 10.1109/NUSOD.2016.7547027
J. Yamauchi, Yuta Rikihisa, H. Nakano
A polarization converter consisting of a silicon waveguide is analyzed by the imaginary-distance beam propagation method based on Yee's mesh and the finite-difference time-domain method. It is revealed at a wavelength of 1.55 μm that the polarization conversion length is 15.1 iμm with an insertion loss of 0.47 dB. An extinction ratio of more than 20 dB is obtained over a wavelength range of 1.53 to 1.57μm.
{"title":"A silicon-waveguide polarization converter with a metal strip on an SiO2 substrate","authors":"J. Yamauchi, Yuta Rikihisa, H. Nakano","doi":"10.1109/NUSOD.2016.7547027","DOIUrl":"https://doi.org/10.1109/NUSOD.2016.7547027","url":null,"abstract":"A polarization converter consisting of a silicon waveguide is analyzed by the imaginary-distance beam propagation method based on Yee's mesh and the finite-difference time-domain method. It is revealed at a wavelength of 1.55 μm that the polarization conversion length is 15.1 iμm with an insertion loss of 0.47 dB. An extinction ratio of more than 20 dB is obtained over a wavelength range of 1.53 to 1.57μm.","PeriodicalId":425705,"journal":{"name":"2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)","volume":"137 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122905902","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 : 2016-08-18DOI: 10.1109/NUSOD.2016.7547076
Yaw-Dong Wu, Tien-Tsorng Shih, Li-Hsiang Wang
In this paper, the electrical property of a geometric optimization with elliptical shape dimer nanoantennas has been studied. Numerical calculations are based on the method of finite-difference time-domain (FDTD). Three types of elliptical shape dimer nanoantennas with different geometrical parameters were considered, namely, horizontal dimer, parallel dimer, and parallel-horizontal dimer. We have found that plasmonic nanoantennas with the horizontal dimer embedded into a 1D double-arm grating system provide strong electric field enhancement as compared with the others.
{"title":"The study of plasmonic elliptical dimer nanoantennas with different geometry","authors":"Yaw-Dong Wu, Tien-Tsorng Shih, Li-Hsiang Wang","doi":"10.1109/NUSOD.2016.7547076","DOIUrl":"https://doi.org/10.1109/NUSOD.2016.7547076","url":null,"abstract":"In this paper, the electrical property of a geometric optimization with elliptical shape dimer nanoantennas has been studied. Numerical calculations are based on the method of finite-difference time-domain (FDTD). Three types of elliptical shape dimer nanoantennas with different geometrical parameters were considered, namely, horizontal dimer, parallel dimer, and parallel-horizontal dimer. We have found that plasmonic nanoantennas with the horizontal dimer embedded into a 1D double-arm grating system provide strong electric field enhancement as compared with the others.","PeriodicalId":425705,"journal":{"name":"2016 International Conference on Numerical Simulation of Optoelectronic Devices (NUSOD)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2016-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125275442","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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