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Analytical model for luminescence enhancement by metal nanoparticles 金属纳米颗粒增强发光的分析模型
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733452
G. Sun, J. Khurgin
{"title":"Analytical model for luminescence enhancement by metal nanoparticles","authors":"G. Sun, J. Khurgin","doi":"10.1109/ICMAP.2013.6733452","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733452","url":null,"abstract":"We report a simple yet rigorous analytical model that adequately describes the luminescence enhancement of optical emitters that are placed in the vicinity of metal nanoparticles of sub-wavelength dimensions. Using the example of Au nanospheres embedded in the GaN dielectric, we show that enhancement depends strongly on the original radiative efficiency of the emitter, the nanoparticle size, and the separation between the emitter and metal nanosphere. We demonstrate that strong enhancement favors the closely spaced emitters and metal nanospheres, but putting them too close to each other does not always produce additional enhancement. Thus our model provides analytical treatment of the luminescence quenching and can be used to optimize both nanoparticle size and its separation from the emitter to yield maximum enhancement factor.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129027029","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
Unloaded quality factor of a substrate integrated waveguide resonator and its variation with the substrate parameters 衬底集成波导谐振器的空载品质因数及其随衬底参数的变化
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733496
Arani Ali Khan, M. Mandal, S. Sanyal
{"title":"Unloaded quality factor of a substrate integrated waveguide resonator and its variation with the substrate parameters","authors":"Arani Ali Khan, M. Mandal, S. Sanyal","doi":"10.1109/ICMAP.2013.6733496","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733496","url":null,"abstract":"In this paper, the variation of unloaded Quality factor QU of a substrate integrated waveguide (SIW) resonator with the substrate parameters is presented. It is observed that the QU strongly depends on substrate thickness, dielectric constant and loss tangent values. QU of a SIW resonator is also compared with that of a conventional rectangular air filled waveguide resonator and also that of a microstrip resonator. The graphical results shown in this paper can be used as a guideline to choose a proper wave guiding structure or an appropriate substrate for SIW application especially where insertion loss is an important issue.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131258570","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: 23
Investigation of all optical pulse steering through a highly nonlinear chalcogenide twin core photonic crystal fiber 高非线性硫系双芯光子晶体光纤全光脉冲导向研究
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733549
T. Uthayakumar, R. Vasantha Jayakantha Raja, K. Nithyanandan, K. Porsezian
{"title":"Investigation of all optical pulse steering through a highly nonlinear chalcogenide twin core photonic crystal fiber","authors":"T. Uthayakumar, R. Vasantha Jayakantha Raja, K. Nithyanandan, K. Porsezian","doi":"10.1109/ICMAP.2013.6733549","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733549","url":null,"abstract":"We propose a novel highly nonlinear chalcogenide filled twin core photonic crystal fiber coupler (PCFC) for applications in all optical controlled devices. From the proposed coupler geometry, the necessary optical parameters namely, effective refractive index, dispersion, nonlinearity, coupling length and extinction coefficient are calculated by using the finite element method (FEM) at 1550 nm. The dynamical characteristics of the individual pulse parameters of an optical pulse propagation through the proposed design is analyzed numerically by employing split step Fourier method. And finally a transmission curve is arrived to explore the influence of high nonlinearity on the steering characteristics of the optical pulse through the proposed model.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131857635","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: 3
Heuristic approach for survivability in WDM optical networks with the impact of four wave mixing 考虑四波混频影响的WDM光网络生存性的启发式方法
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733558
T. Jaisingh, Amitesh Kumar, V. Priye
{"title":"Heuristic approach for survivability in WDM optical networks with the impact of four wave mixing","authors":"T. Jaisingh, Amitesh Kumar, V. Priye","doi":"10.1109/ICMAP.2013.6733558","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733558","url":null,"abstract":"Survivability in Wavelength Division Multiplexed (WDM) networks is a challenging task in modern network design against network failures. In earlier days, survivability schemes were implemented with the assumption that the physical layer conditions are ideal in nature. It is seen that in long haul WDM transmissions, four wave mixing (FWM) affects the quality of transmission in fiber. Therefore it is necessary to develop new techniques that will establish error free connections. In this paper, we have proposed an end-to end path protection algorithm that includes the impact of four wave mixing on the routing and wavelength assignment in WDM optical networks. Simulation results show that the performance of the proposed scheme is much better when compared to the existing popular schemes proposed earlier for WDM optical networks with and without considering the physical layer impairment.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"83 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124329959","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
Performances analysis of a 5 GHz rectenna for indoor applications 室内应用5ghz整流天线性能分析
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733458
R. K. Yadav, Sushrut Das, R. L. Yadava
{"title":"Performances analysis of a 5 GHz rectenna for indoor applications","authors":"R. K. Yadav, Sushrut Das, R. L. Yadava","doi":"10.1109/ICMAP.2013.6733458","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733458","url":null,"abstract":"This paper describes the design and analysis of a rectifier-antenna for indoor applications. In the proposed work, first a pentagonal patch antenna is designed at centre frequency 5 GHz and simulated using Ansoft HFSS and found that the antenna resonates at three frequency 5 GHz, 10.7 GHz and 14.2 GHz. In the next step a low pass filter cornered around 5 GHz is designed and integrated with a pentagonal patch antenna. Analysis of obtained structure shows only one resonance at 5 GHz with a return loss of around 15 dB hence eliminates two harmonics of 10.7 GHz and 14.2 GHz. Then for rectification purpose, a Schottky diode is characterized at 5 GHz as well as the proposed antenna structure is matched to the optimal complex impedance, consequently the RF-DC conversion efficiency of the rectenna is found to be 54%.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116043856","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
Compact penta-band coupled-fed printed monopole MIMO/diversity antenna for smart mobile phone 用于智能手机的紧凑型五波段耦合馈电印刷单极MIMO/分集天线
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733502
H. Singh, G. Pandey, P. K. Bharti, M. K. Meshram
{"title":"Compact penta-band coupled-fed printed monopole MIMO/diversity antenna for smart mobile phone","authors":"H. Singh, G. Pandey, P. K. Bharti, M. K. Meshram","doi":"10.1109/ICMAP.2013.6733502","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733502","url":null,"abstract":"A small size printed monopole with coupled-fed multiple input multiple output (MIMO) antenna is presented which covers the frequency bands LTE700 (747-790 MHz), GPS L1 (1485-1585 MHZ), IMT2100, WLAN, and LTE2600. Each antenna element occupies small volume i.e. 24 × 22.5 mm2 of large mobile circuit board of area 120 × 60 mm2. To maintain the small size of the antenna elements, meandered line and loop strip with end terminal short-circuited to the ground plane is chosen. A slot and a dual inverted L-shaped ground branch are added in the ground plane to decrease the mutual coupling between the antenna elements.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"394 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116670912","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: 4
Analyzing characteristics of Sagnac loop interferometric stress sensor Sagnac环干涉式应力传感器特性分析
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733548
P. Kishore, M. S. Shankar, P. Kishore, P. V. Rao, S. Roy
{"title":"Analyzing characteristics of Sagnac loop interferometric stress sensor","authors":"P. Kishore, M. S. Shankar, P. Kishore, P. V. Rao, S. Roy","doi":"10.1109/ICMAP.2013.6733548","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733548","url":null,"abstract":"Effect of transverse induced stress on fiber optic Sagnac interferometer has been studied. The Sagnac loop is designed with conventional single mode fiber. Applying transverse stress on the fiber loop, resulting interference patterns are captured by a CCD and hence analyzed to obtain the angular shift of deformations by image processing technique using MATLAB. Data are taken from the single and double fiber optic loops of the Sagnac interferometric configurations and hence a comparative study is performed to achieve better sensitivity.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"254 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114408249","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: 1
L-strip fed circularly polarised microstrip antenna with cross slots 交叉槽l带馈电圆极化微带天线
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733464
D. Singh, B. Kanaujia, S. Dwari, G. P. Pandey
{"title":"L-strip fed circularly polarised microstrip antenna with cross slots","authors":"D. Singh, B. Kanaujia, S. Dwari, G. P. Pandey","doi":"10.1109/ICMAP.2013.6733464","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733464","url":null,"abstract":"In the present paper, a wideband circularly polarized microstrip antenna is designed for application in wireless local area network(WLAN). The proposed antenna is L-strip fed proximity coupled circular microstrip antenna where the radiating patch is loaded by a cross slot of unequal arms length. The circular polarization is achieved by cutting an asymmetric slot cut on circular radiating patch to produce orthogonal modes. A small circular patch on RT-Duroid 5880 with εr = 2.2 can provide a -10dB return loss bandwidth of 51.8% and axial ratio (AR) bandwidth of 8.43% (AR<;3dB). The proposed antenna has wide bandwidth in the frequency band of WLAN.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114474204","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: 1
Self Adaptive Differential Evolution based thinning of concentric circular antenna arrays 基于自适应差分进化的同心圆天线阵列减薄
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733500
Sudipta Das, G. Ram, D. Mandal, R. Kar, S. Ghoshal
{"title":"Self Adaptive Differential Evolution based thinning of concentric circular antenna arrays","authors":"Sudipta Das, G. Ram, D. Mandal, R. Kar, S. Ghoshal","doi":"10.1109/ICMAP.2013.6733500","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733500","url":null,"abstract":"Self Adaptive Differential Evolution (SADE) is a popular variant of Differential Evolution (DE) that has the ability to tune its internal parameter online to produce acceptable results. In this work geometry of a nine ring concentric circular antenna array (CCAA) is thinned by vanishing one or more rings from the geometry and simultaneously finding suitable radii of active rings. Care has been taken to preserve the directivity of the array as far as possible.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115801489","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: 4
Analysis of longitudinal slot in a rectangular waveguide using image series and Chebyshev-Toeplitz algorithm 利用图像序列和chebyhev - toeplitz算法分析矩形波导中的纵向缝隙
2013 International Conference on Microwave and Photonics (ICMAP) Pub Date : 2013-12-01 DOI: 10.1109/ICMAP.2013.6733466
S. Kakatkar, K. P. Ray
{"title":"Analysis of longitudinal slot in a rectangular waveguide using image series and Chebyshev-Toeplitz algorithm","authors":"S. Kakatkar, K. P. Ray","doi":"10.1109/ICMAP.2013.6733466","DOIUrl":"https://doi.org/10.1109/ICMAP.2013.6733466","url":null,"abstract":"The internal admittance of a radiating longitudinal slot in the broadwall of rectangular waveguide, required in analyses such as Method of Moments, has been evaluated by considering the images of the slot in waveguide walls. The contribution from this set of infinite images has been evaluated using simple closed form expressions for mutual coupling between slot and its image. The convergence of the series is accelerated using Chebyshev-Toeplitz algorithm. The resonant length calculated using this simple and accurate analysis is shown to be in close agreement with measured results and with other theoretical results. The analysis given here can be extended to include other slot aperture distributions with edge condition in the transverse direction or for rounded end slots. This analysis is useful in the efficient design of waveguide slot arrays.","PeriodicalId":286435,"journal":{"name":"2013 International Conference on Microwave and Photonics (ICMAP)","volume":"77 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124961846","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: 3
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