Pub Date : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758301
Imran Ahmed, E. Oki, Bijoy Chand Chatterjee
Crosstalk (XT) is one of the major obstacles for resource allocation in spectrally-spatially elastic optical networks (SS-EONs). In SS-EONs, XT-aware and XT-avoided approaches are considered two main methods to deal with inter-core and inter-mode XTs. This paper addresses the question: which is the better choice for network operators between XT-aware and XT-avoided approaches to deal with inter-core and inter-mode XTs? Numerical results show that the XT-aware approach outperforms the XT-avoided approach in terms of resource utilization. On the other hand, the XT-avoided approach requires less computation time than the XT-aware approach.
{"title":"Crosstalk-Aware vs. Crosstalk-Avoided Approaches in Spectrally-Spatially Elastic Optical Networks: Which is the Better Choice?","authors":"Imran Ahmed, E. Oki, Bijoy Chand Chatterjee","doi":"10.1109/WRAP54064.2022.9758301","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758301","url":null,"abstract":"Crosstalk (XT) is one of the major obstacles for resource allocation in spectrally-spatially elastic optical networks (SS-EONs). In SS-EONs, XT-aware and XT-avoided approaches are considered two main methods to deal with inter-core and inter-mode XTs. This paper addresses the question: which is the better choice for network operators between XT-aware and XT-avoided approaches to deal with inter-core and inter-mode XTs? Numerical results show that the XT-aware approach outperforms the XT-avoided approach in terms of resource utilization. On the other hand, the XT-avoided approach requires less computation time than the XT-aware approach.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"48 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129350752","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758328
Rakesh Ashok, Shivangi Chugh, Shalabh Gupta
We present a methodology to synthesize millimeter (mm) and submillimeter range sinusoidal signals using the principle of photomixing and phase locked loops. The presented feedback control system comprising a tunable laser, electronic frequency dividers, and other loop components enables the synthesis of a wide range of frequencies. The architecture provides the flexibility of using a wide range of RF sources and lasers for the generation of mm-waves, along with the advantage of a wide frequency tuning range. Experimental results also prove the feasibility of adapting the presented architecture for an mm-wave generation. This technique is an attractive solution for high frequency carrier generation for wireless communication (5G and beyond) and high speed clock generation in near-future electronic-photonic integrated circuits based signal processors.
{"title":"Millimeter wave frequency synthesizers using integrated photonics aided phase locked loops","authors":"Rakesh Ashok, Shivangi Chugh, Shalabh Gupta","doi":"10.1109/WRAP54064.2022.9758328","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758328","url":null,"abstract":"We present a methodology to synthesize millimeter (mm) and submillimeter range sinusoidal signals using the principle of photomixing and phase locked loops. The presented feedback control system comprising a tunable laser, electronic frequency dividers, and other loop components enables the synthesis of a wide range of frequencies. The architecture provides the flexibility of using a wide range of RF sources and lasers for the generation of mm-waves, along with the advantage of a wide frequency tuning range. Experimental results also prove the feasibility of adapting the presented architecture for an mm-wave generation. This technique is an attractive solution for high frequency carrier generation for wireless communication (5G and beyond) and high speed clock generation in near-future electronic-photonic integrated circuits based signal processors.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116212151","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758206
Bharadwaj Peela, Pravallika Bandaru, S. Dutta-Gupta
Plasmonic nanostructures have been used to enhance Raman scattering by the virtue of surface plasmon resonances. This method of surface enhanced Raman spectroscopy (SERS) has paved the way for these plasmonic nanostructures to be used as potential SERS substrates in applications like bio-sensing, diagnostics and other applications. In order to optimize the SERS enhancement, the plasmon resonance of the nanostructures needs to be tuned. The usage of alloy nanoparticles has been an efficient method to achieve this. In this paper we study Ag-Cu alloy nanoparticles with Janus morphology and explore the possibility of tuning the plasmon resonance in order to utilize the nanostructures for dual wavelength SERS applications.
{"title":"Janus Nanoparticles for Dual Wavelength Surface Enhanced Raman Scattering Applications","authors":"Bharadwaj Peela, Pravallika Bandaru, S. Dutta-Gupta","doi":"10.1109/WRAP54064.2022.9758206","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758206","url":null,"abstract":"Plasmonic nanostructures have been used to enhance Raman scattering by the virtue of surface plasmon resonances. This method of surface enhanced Raman spectroscopy (SERS) has paved the way for these plasmonic nanostructures to be used as potential SERS substrates in applications like bio-sensing, diagnostics and other applications. In order to optimize the SERS enhancement, the plasmon resonance of the nanostructures needs to be tuned. The usage of alloy nanoparticles has been an efficient method to achieve this. In this paper we study Ag-Cu alloy nanoparticles with Janus morphology and explore the possibility of tuning the plasmon resonance in order to utilize the nanostructures for dual wavelength SERS applications.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126096035","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758286
Jitendra Nath Acharyya, G. Prakash, D. N. Rao, A. K. Mishra
Enhanced nonlinear optical responses and ultrafast dynamics in 1D metal-dielectric (MD) photonic structures are observed under intense femtosecond laser pulse excitation.
在强飞秒激光脉冲激励下，一维金属介电(MD)光子结构的非线性光学响应和超快动力学得到了增强。
{"title":"Femtosecond optical nonlinearities and Ultrafast dynamics in Metal-dielectric photonic structure","authors":"Jitendra Nath Acharyya, G. Prakash, D. N. Rao, A. K. Mishra","doi":"10.1109/WRAP54064.2022.9758286","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758286","url":null,"abstract":"Enhanced nonlinear optical responses and ultrafast dynamics in 1D metal-dielectric (MD) photonic structures are observed under intense femtosecond laser pulse excitation.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122341472","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758314
N. Gupta, H. Wanare, Aditi Chopra, Mukesh Kumar, S. S. Pal, A. Tiwari, S. A. Ramakrishna
We have designed, investigated, and experimentally realized a topological surface state (TSS) localized at the interface of two stratified photonic media. The manifested state is protected by the spatial inversion symmetry of the constituents, which permits the assignment of quantized topological invariants to them. The genesis of the surface state can be traced to the characteristic difference in the bulk topological behavior of the underlying stopbands. Specifically, in the present realization of TSS, we have resorted to a concatenation of topologically inequivalent first and second-order stopbands of two planar photonic crystals and established the disparity in their stopband characteristics.
{"title":"Topological Surface State by Hierarchical Concatenation of Photonic Stopbands","authors":"N. Gupta, H. Wanare, Aditi Chopra, Mukesh Kumar, S. S. Pal, A. Tiwari, S. A. Ramakrishna","doi":"10.1109/WRAP54064.2022.9758314","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758314","url":null,"abstract":"We have designed, investigated, and experimentally realized a topological surface state (TSS) localized at the interface of two stratified photonic media. The manifested state is protected by the spatial inversion symmetry of the constituents, which permits the assignment of quantized topological invariants to them. The genesis of the surface state can be traced to the characteristic difference in the bulk topological behavior of the underlying stopbands. Specifically, in the present realization of TSS, we have resorted to a concatenation of topologically inequivalent first and second-order stopbands of two planar photonic crystals and established the disparity in their stopband characteristics.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124852046","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758271
Megha Khokhar, R. V. Nair
We have investigated the all-dielectric metasurface comprising the square array of nanodisks periodically arranged in two dimensions. The studies examined by performing the simulations determine the origin of the electric and magnetic dipole resonances induced by the structure. The underlying physics of the different resonances is elucidated by tuning the diameter, height, and periodicity of the metasurface. The strong magnetic dipole resonant feature with high scattering efficiency is scrutinized by engineering the structural parameters optimized at the desired resonance wavelength for the metasurface. The studies are crucial to illustrate such metasurfaces with enhanced magnetic behavior for various magneto-optical studies.
{"title":"Engineering strong magnetic dipole resonance in all- dielectric metasurfaces","authors":"Megha Khokhar, R. V. Nair","doi":"10.1109/WRAP54064.2022.9758271","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758271","url":null,"abstract":"We have investigated the all-dielectric metasurface comprising the square array of nanodisks periodically arranged in two dimensions. The studies examined by performing the simulations determine the origin of the electric and magnetic dipole resonances induced by the structure. The underlying physics of the different resonances is elucidated by tuning the diameter, height, and periodicity of the metasurface. The strong magnetic dipole resonant feature with high scattering efficiency is scrutinized by engineering the structural parameters optimized at the desired resonance wavelength for the metasurface. The studies are crucial to illustrate such metasurfaces with enhanced magnetic behavior for various magneto-optical studies.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130109659","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758232
Ankur Gupta, Ankit Singh, R. Singh, Akhilesh Tiwari
The technique of Surface plasmon resonance (SPR) is used to measure the bimolecular interaction. Due to advantages over prism and optical fiber, Photonic crystal fiber (PCF) based SPR sensing have lot of research interest. In this study, a PCF based SPR sensor having bimetallic nanowires for multianalyte sensing is proposed. Multianalyte sensing is performed using superposition of SPRs with the use of spatially distributed multi metals nanowires. The performance characteristics of SPR peaks are also good.
{"title":"Bimetallic nanowire based multianalyte SPR biosensor with Photonic Crystal Fiber","authors":"Ankur Gupta, Ankit Singh, R. Singh, Akhilesh Tiwari","doi":"10.1109/WRAP54064.2022.9758232","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758232","url":null,"abstract":"The technique of Surface plasmon resonance (SPR) is used to measure the bimolecular interaction. Due to advantages over prism and optical fiber, Photonic crystal fiber (PCF) based SPR sensing have lot of research interest. In this study, a PCF based SPR sensor having bimetallic nanowires for multianalyte sensing is proposed. Multianalyte sensing is performed using superposition of SPRs with the use of spatially distributed multi metals nanowires. The performance characteristics of SPR peaks are also good.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126332488","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758244
Dipjyoti Sarma, Sritam Biswas, P. Nath
Surface-Enhanced Raman Scattering (SERS) is an analytical tool for rapid sensing of analytes. We here report the working of a highly sensitive and reproducible SERS substrate by effective guidance of localized plasmon resonance (LSPR) field of silver nanoparticles (AgNPs) trapped in the nano channels of Blue-ray DVD (BR-DVD). The trapped AgNPs in the channels of BR-DVD generate Guided mode resonance (GMR) field. The designed substrate is used for the trace sensing of paracetamol in aqueous medium. The minimum concentration detected is 0.1 mM.
{"title":"Blue-ray DVD as a low-cost substrate for the fast sensing of paracetamol in aqueous medium using surface-enhanced Raman spectroscopy (SERS)","authors":"Dipjyoti Sarma, Sritam Biswas, P. Nath","doi":"10.1109/WRAP54064.2022.9758244","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758244","url":null,"abstract":"Surface-Enhanced Raman Scattering (SERS) is an analytical tool for rapid sensing of analytes. We here report the working of a highly sensitive and reproducible SERS substrate by effective guidance of localized plasmon resonance (LSPR) field of silver nanoparticles (AgNPs) trapped in the nano channels of Blue-ray DVD (BR-DVD). The trapped AgNPs in the channels of BR-DVD generate Guided mode resonance (GMR) field. The designed substrate is used for the trace sensing of paracetamol in aqueous medium. The minimum concentration detected is 0.1 mM.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"113 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124364709","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758207
Soumyajyoti Mallick, D. R. Chowdhury
We demonstrate a multiple split-ring resonator based metasurface that exhibits bright mode-bright mode coupling in the Terahertz regime, leading to strong mode-hybridization assisted near-field coupling in the structure. Further, we show the emergence of antiparallel toroidal modes due to the near-field coupling amongst the constituent ‘bright’ mode resonators.
{"title":"Near-Field Coupled Toroidal Metasurfaces Based on ‘All’ Bright Resonators Framework","authors":"Soumyajyoti Mallick, D. R. Chowdhury","doi":"10.1109/WRAP54064.2022.9758207","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758207","url":null,"abstract":"We demonstrate a multiple split-ring resonator based metasurface that exhibits bright mode-bright mode coupling in the Terahertz regime, leading to strong mode-hybridization assisted near-field coupling in the structure. Further, we show the emergence of antiparallel toroidal modes due to the near-field coupling amongst the constituent ‘bright’ mode resonators.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124396708","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 : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758364
J. Dash, Shaumik Ray, Soniya S, Lenin B, Shyamsundar Mandyam, B. Pesala
In this paper, a compact, cost-effective Continuous Wave Terahertz system has been developed and deployed for biological and industrial applications. More than forty Formalin Fixed Paraffin Embedded (FFPE) breast cancer tissues with adjacent normal tissues have been imaged and compared with the histopathology results. The system has also been employed for defect detection and moisture ingression in glass fiber reinforced composites, confirming the potential of the Terahertz system.
{"title":"Development of Compact, Indigenous Terahertz Systems for Medical Diagnostics and NDT Applications","authors":"J. Dash, Shaumik Ray, Soniya S, Lenin B, Shyamsundar Mandyam, B. Pesala","doi":"10.1109/WRAP54064.2022.9758364","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758364","url":null,"abstract":"In this paper, a compact, cost-effective Continuous Wave Terahertz system has been developed and deployed for biological and industrial applications. More than forty Formalin Fixed Paraffin Embedded (FFPE) breast cancer tissues with adjacent normal tissues have been imaged and compared with the histopathology results. The system has also been employed for defect detection and moisture ingression in glass fiber reinforced composites, confirming the potential of the Terahertz system.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"1468 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123369152","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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