Pub Date : 2022-03-04DOI: 10.1109/WRAP54064.2022.9758283
B. S. Chouhan, K. Dhriti, A. Chowdhary, D. Sikdar, G. Kumar
In this article, we report a polarization-sensitive tunable metamaterial modulator, which staking of a dielectric slab of a complementary cylindrical shell, graphene nanoribbons, dielectric spacer and a metallic layer. Our design promises more than 95% absorption in the range of 1.2 THz to 1.7 THz for TM polarization. In contrast, we get negligible absorption for the TE polarization. We further investigate the tunable absorption in our proposed metamaterial configuration by changing the Fermi energy of graphene. The study could be significant to construct broadband polarization-sensitive devices in the THz regime.
{"title":"Modulating broadband terahertz in a Graphene assisted dielectric Metamaterial","authors":"B. S. Chouhan, K. Dhriti, A. Chowdhary, D. Sikdar, G. Kumar","doi":"10.1109/WRAP54064.2022.9758283","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758283","url":null,"abstract":"In this article, we report a polarization-sensitive tunable metamaterial modulator, which staking of a dielectric slab of a complementary cylindrical shell, graphene nanoribbons, dielectric spacer and a metallic layer. Our design promises more than 95% absorption in the range of 1.2 THz to 1.7 THz for TM polarization. In contrast, we get negligible absorption for the TE polarization. We further investigate the tunable absorption in our proposed metamaterial configuration by changing the Fermi energy of graphene. The study could be significant to construct broadband polarization-sensitive devices in the THz regime.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"19 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":"122027842","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/WRAP54064.2022.9758212
C. V. N. Bhaskar, M. Balasubramanian, Subhradeep Pal, P. Pattnaik
In this paper, a cascaded apodized FBG structure of varying lengths operated on C-band is proposed. The proposed structure is analyzed and simulated using MATLAB. Such a structure can be used as a passive optical device in the optical link to enhance its performance or as a narrow-band filter for communication purposes. Simulation results reveal that the proposed structure can achieve a maximum reflectivity of 96.85% and a full width at half maximum (FWHM) of 0.06 nm.
{"title":"Spectral Characteristics of Cascaded Apodized FBGs of Varying Lengths","authors":"C. V. N. Bhaskar, M. Balasubramanian, Subhradeep Pal, P. Pattnaik","doi":"10.1109/WRAP54064.2022.9758212","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758212","url":null,"abstract":"In this paper, a cascaded apodized FBG structure of varying lengths operated on C-band is proposed. The proposed structure is analyzed and simulated using MATLAB. Such a structure can be used as a passive optical device in the optical link to enhance its performance or as a narrow-band filter for communication purposes. Simulation results reveal that the proposed structure can achieve a maximum reflectivity of 96.85% and a full width at half maximum (FWHM) of 0.06 nm.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"502 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":"116197890","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/WRAP54064.2022.9758305
S. Kundal, Arpit Khandelwal
Ring resonator based biosensor is designed for cancer and hemoglobin detection and structure is optimized for better sensitivity and Q factor. The sensor has the capacity to detect various cancer cells and hemoglobin concentrations with high sensitivity of 200 nm/RIU and a Q factor of around 2000.
{"title":"Optimization of Sensitivity and Q-Factor of Ring Resonator Based Label Free Biosensor","authors":"S. Kundal, Arpit Khandelwal","doi":"10.1109/WRAP54064.2022.9758305","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758305","url":null,"abstract":"Ring resonator based biosensor is designed for cancer and hemoglobin detection and structure is optimized for better sensitivity and Q factor. The sensor has the capacity to detect various cancer cells and hemoglobin concentrations with high sensitivity of 200 nm/RIU and a Q factor of around 2000.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"13 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":"115741947","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/WRAP54064.2022.9758251
S. Chanu, R. Sonkar
This paper investigates the band structure of hexagonal lattice 2D photonic crystals with hole arrays in a dielectric slab with silica as upper and lower cladding. Slab height and radius of holes are varied with respect to the lattice constant to observe band structures for silicon and silicon-germanium dielectric media. Optimum values of the parameters are obtained for the widest bandgap considering the vertical confinement and the bandgap is optimized for C-band applications.
{"title":"Band Structure Analysis of Silica Clad Silicon-based 2D Photonic Crystal for C-band Applications","authors":"S. Chanu, R. Sonkar","doi":"10.1109/WRAP54064.2022.9758251","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758251","url":null,"abstract":"This paper investigates the band structure of hexagonal lattice 2D photonic crystals with hole arrays in a dielectric slab with silica as upper and lower cladding. Slab height and radius of holes are varied with respect to the lattice constant to observe band structures for silicon and silicon-germanium dielectric media. Optimum values of the parameters are obtained for the widest bandgap considering the vertical confinement and the bandgap is optimized for C-band applications.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"44 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":"126637582","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/WRAP54064.2022.9758213
A. Sidhique, Rashmi Kamran, Shivangi Chugh, Shalabh Gupta
We propose a power-efficient architecture for an integrated optical equalizer for high-speed PAM-4 data center interconnects. The presented equalizer mitigates the intersymbol interference resulting from the bandwidth limitation of electronic and electro-optic components along with the fiber non-idealities in a PAM-4 short-reach optical link.
{"title":"Optical Equalizer for Short-Reach PAM-4 Data Center Interconnects","authors":"A. Sidhique, Rashmi Kamran, Shivangi Chugh, Shalabh Gupta","doi":"10.1109/WRAP54064.2022.9758213","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758213","url":null,"abstract":"We propose a power-efficient architecture for an integrated optical equalizer for high-speed PAM-4 data center interconnects. The presented equalizer mitigates the intersymbol interference resulting from the bandwidth limitation of electronic and electro-optic components along with the fiber non-idealities in a PAM-4 short-reach optical link.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"44 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":"128176969","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/WRAP54064.2022.9758378
B. Ghosh, S. Mandal
A simple and effective modeling methodology for simultaneous measurement of strain and temperature using fiber Bragg grating is described. The performance of the FBG based sensor is studied utilising the optical delay line signal processing technique in Z-domain. The sensor works by detecting the shift in the resonant mode in the reflection spectrum. When the grating is subjected to temperature and strain variations, the optical path lengths change, resulting in this shift.
{"title":"Z-domain Modeling of FBG Sensors","authors":"B. Ghosh, S. Mandal","doi":"10.1109/WRAP54064.2022.9758378","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758378","url":null,"abstract":"A simple and effective modeling methodology for simultaneous measurement of strain and temperature using fiber Bragg grating is described. The performance of the FBG based sensor is studied utilising the optical delay line signal processing technique in Z-domain. The sensor works by detecting the shift in the resonant mode in the reflection spectrum. When the grating is subjected to temperature and strain variations, the optical path lengths change, resulting in this shift.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"55 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":"129541445","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/WRAP54064.2022.9758335
Nabarun Polley, C. Pacholski
Plasmonic sensors have received significant attention due to their highly sensitive, reliable, and rapid detection capabilities for different analytes. Bulky and expensive optical instrumentation of conventional plasmonic sensors often limits their applicability for point-of-need applications. Utilization of optical fibers as flexible, miniature substrates for plasmonic nanostructures has led to the development of lab-on-fiber technology. In this study, we have exploited nanohole array as the plasmonic material which was deposited on fiber tips. In order to improve the sensitivity of the sensor, we have introduced hydrogel microgel monolayers. in the sensor. All the fabrications steps are solely based on chemical methods.
{"title":"Plasmonic Lab-on-fiber Sensor: Fabrication and Subsequent Optimization","authors":"Nabarun Polley, C. Pacholski","doi":"10.1109/WRAP54064.2022.9758335","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758335","url":null,"abstract":"Plasmonic sensors have received significant attention due to their highly sensitive, reliable, and rapid detection capabilities for different analytes. Bulky and expensive optical instrumentation of conventional plasmonic sensors often limits their applicability for point-of-need applications. Utilization of optical fibers as flexible, miniature substrates for plasmonic nanostructures has led to the development of lab-on-fiber technology. In this study, we have exploited nanohole array as the plasmonic material which was deposited on fiber tips. In order to improve the sensitivity of the sensor, we have introduced hydrogel microgel monolayers. in the sensor. All the fabrications steps are solely based on chemical methods.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"6 2 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":"130908517","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/WRAP54064.2022.9758389
R. Jani, Kshitij Bhargava
The BHJ-OSCs based on non-fullerene acceptor (NFA) have shown better performance and stability as compared to its fullerene acceptor based counterpart. In this study, we have considered a blend of ITIC as NFA and PBDB-T as donor. The NFA organic solar cell having configuration ITO/NiO/IL1/PBDB-T/ITIC/IL2/ C60/Ag is simulated using SCAPS-1D with an aim to investigate nickel oxide (NiO) as potential HTL. The simulated structure shows Jsc, ‘n, FF and Voc of 13.63 mA/cm2, 12.58%, 85.75% and 1.079 V respectively. Hence, the obtained results can pave the way for improving performance of NFA organic solar cell with NiO as potential HTL.
{"title":"Numerical simulation of NFA organic solar cells with C60 and NiO as charge transport layers","authors":"R. Jani, Kshitij Bhargava","doi":"10.1109/WRAP54064.2022.9758389","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758389","url":null,"abstract":"The BHJ-OSCs based on non-fullerene acceptor (NFA) have shown better performance and stability as compared to its fullerene acceptor based counterpart. In this study, we have considered a blend of ITIC as NFA and PBDB-T as donor. The NFA organic solar cell having configuration ITO/NiO/IL1/PBDB-T/ITIC/IL2/ C60/Ag is simulated using SCAPS-1D with an aim to investigate nickel oxide (NiO) as potential HTL. The simulated structure shows Jsc, ‘n, FF and Voc of 13.63 mA/cm2, 12.58%, 85.75% and 1.079 V respectively. Hence, the obtained results can pave the way for improving performance of NFA organic solar cell with NiO as potential HTL.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"10 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":"130503288","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/WRAP54064.2022.9758208
S. Saha, Sonatan Das, A. Datta, T. Kundu
The optical reduction of graphene oxide (GO) using an Argon ion laser source of different wavelengths is presented. The laser wavelength and power dependency on reduction have been studied. The photoresponse of the reduced graphene oxide (rGO) based device has been carried out. The immobilization of the gold nanoparticles on the rGO surface has also been investigated to explore its potential as a plasmonic sensor.
{"title":"Tunable Photonic Platform Using Optically Reduced Graphene Oxide","authors":"S. Saha, Sonatan Das, A. Datta, T. Kundu","doi":"10.1109/WRAP54064.2022.9758208","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758208","url":null,"abstract":"The optical reduction of graphene oxide (GO) using an Argon ion laser source of different wavelengths is presented. The laser wavelength and power dependency on reduction have been studied. The photoresponse of the reduced graphene oxide (rGO) based device has been carried out. The immobilization of the gold nanoparticles on the rGO surface has also been investigated to explore its potential as a plasmonic sensor.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"28 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":"115474426","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/WRAP54064.2022.9758224
Angana Bhattacharya, Rakesh Sarkar, Anshul Bhardwaj, G. Kumar
The refractive index sensing is explored by exciting dual band electromagnetically induced transparency in a toroidal dipole-based terahertz metasurface. The high-sensitivity of the toroidal resonance could be significant in the design of highly sensitive multiband sensors and photonic devices.
{"title":"Sensing in a toroidal coupled dual-band EIT terahertz metadevice","authors":"Angana Bhattacharya, Rakesh Sarkar, Anshul Bhardwaj, G. Kumar","doi":"10.1109/WRAP54064.2022.9758224","DOIUrl":"https://doi.org/10.1109/WRAP54064.2022.9758224","url":null,"abstract":"The refractive index sensing is explored by exciting dual band electromagnetically induced transparency in a toroidal dipole-based terahertz metasurface. The high-sensitivity of the toroidal resonance could be significant in the design of highly sensitive multiband sensors and photonic devices.","PeriodicalId":363857,"journal":{"name":"2022 Workshop on Recent Advances in Photonics (WRAP)","volume":"986-987 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":"124515251","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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