Pub Date : 2013-12-01DOI: 10.1109/WRAP.2013.6917676
Samsheerali, K. Khare, J. Joseph
We demonstrate the feasibility of constrained optimization approach for quantitative phase profiling. A high quality phase recovery from a near on axis hologram is made possible with the method.
我们证明了约束优化方法用于定量相位分析的可行性。利用该方法可以从近轴全息图中获得高质量的相位恢复。
{"title":"Single shot digital holography for real-time phase profiling of transparent objects","authors":"Samsheerali, K. Khare, J. Joseph","doi":"10.1109/WRAP.2013.6917676","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917676","url":null,"abstract":"We demonstrate the feasibility of constrained optimization approach for quantitative phase profiling. A high quality phase recovery from a near on axis hologram is made possible with the method.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129093165","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917710
S. Kher, S. Chaubey, J. Kishore, S. M. Oak
We have experimentally studied in real time the effect of gamma radiation on the characteristics of long period fibre gratings written in different types of fibres. The grating parameters and fibre composition have been optimized. Prototype packaged sensors have been developed for field application.
{"title":"Investigation of nuclear radiation sensing potential of fibre gratings with special reference to nuclear reactors and accelerators","authors":"S. Kher, S. Chaubey, J. Kishore, S. M. Oak","doi":"10.1109/WRAP.2013.6917710","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917710","url":null,"abstract":"We have experimentally studied in real time the effect of gamma radiation on the characteristics of long period fibre gratings written in different types of fibres. The grating parameters and fibre composition have been optimized. Prototype packaged sensors have been developed for field application.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125354981","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917688
A. Pal, A. Dhar, R. Sen, M. Ams, T. Sun, K. Grattan
Radiation-resistant optical fibers have been fabricated through MCVD process. The low radiation-induced-absorption in the fiber and few picometer shifting of Bragg-wavelength of the FBG under γ-exposure indicate its potential application for sensing in radiation environment.
{"title":"Radiation resistant optical fiber for FBG based sensing","authors":"A. Pal, A. Dhar, R. Sen, M. Ams, T. Sun, K. Grattan","doi":"10.1109/WRAP.2013.6917688","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917688","url":null,"abstract":"Radiation-resistant optical fibers have been fabricated through MCVD process. The low radiation-induced-absorption in the fiber and few picometer shifting of Bragg-wavelength of the FBG under γ-exposure indicate its potential application for sensing in radiation environment.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121350134","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917658
B. Sai Venkatesh, R. Ganapathy, K. Porsezian
A Radio-over fiber communication system operating at Terahertz frequency is designed, considering the underlying physics of nanoelectronic and nanophotonic devices, and performance of non-conventional soliton based carriers is evaluated, accounting for novelty of this work.
{"title":"Design of Terahertz Radio over Fiber - Beyond 4G","authors":"B. Sai Venkatesh, R. Ganapathy, K. Porsezian","doi":"10.1109/WRAP.2013.6917658","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917658","url":null,"abstract":"A Radio-over fiber communication system operating at Terahertz frequency is designed, considering the underlying physics of nanoelectronic and nanophotonic devices, and performance of non-conventional soliton based carriers is evaluated, accounting for novelty of this work.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125065309","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917660
M. S. Aruna Gandhi, K. Senthilnathan, P. Ramesh Babu, S. Sivabalan, K. Nakkeeran
We propose a six fold solid-core photonic quasicrystal fiber for studying optical properties for wavelengths from 200 to 3000 nm and demonstrate a low dispersion and high nonlinearity at 1060 nm for few-cycle pulse generation.
{"title":"Low dispersion and high nonlinearity microstructured photonic quasicrystal fiber","authors":"M. S. Aruna Gandhi, K. Senthilnathan, P. Ramesh Babu, S. Sivabalan, K. Nakkeeran","doi":"10.1109/WRAP.2013.6917660","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917660","url":null,"abstract":"We propose a six fold solid-core photonic quasicrystal fiber for studying optical properties for wavelengths from 200 to 3000 nm and demonstrate a low dispersion and high nonlinearity at 1060 nm for few-cycle pulse generation.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132357723","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917637
Preeti Rani, Y. Kalra, R. Sinha
We propose the design for AND optical logic gate. The design has been simulated using FDTD method and has a contrast ratio of 6.130dB. The design has a bit rate of 0.664Tbit/s.
{"title":"Design and operation of photonic crystal based AND optical logic gate","authors":"Preeti Rani, Y. Kalra, R. Sinha","doi":"10.1109/WRAP.2013.6917637","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917637","url":null,"abstract":"We propose the design for AND optical logic gate. The design has been simulated using FDTD method and has a contrast ratio of 6.130dB. The design has a bit rate of 0.664Tbit/s.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115461211","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917670
Purnima Sethi, Sukhdev Roy
We present the design of a 40 Gb/s reconfigurable logic unit based on all-optical switching by two-photon absorption induced free-carrier injection in silicon add-drop microring resonators. The circuit has been theoretically analyzed using time-domain coupled-mode theory.
{"title":"All-optical ultrafast reconfigurable logic unit with silicon microring resonators","authors":"Purnima Sethi, Sukhdev Roy","doi":"10.1109/WRAP.2013.6917670","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917670","url":null,"abstract":"We present the design of a 40 Gb/s reconfigurable logic unit based on all-optical switching by two-photon absorption induced free-carrier injection in silicon add-drop microring resonators. The circuit has been theoretically analyzed using time-domain coupled-mode theory.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115498162","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917707
S. Hamad, G. Podagatlapalli, Venugopal Rao Soma
We report significant fluorescence enhancements in a Corrole molecule which are directly adsorbed on copper chloride nanoparticles. The prominent emission bands near 622 nm and 646 nm were observed to undergo significant enhancements up to ~333 times.
{"title":"Surface enhanced fluorescence of corroles using copper nanoparticles","authors":"S. Hamad, G. Podagatlapalli, Venugopal Rao Soma","doi":"10.1109/WRAP.2013.6917707","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917707","url":null,"abstract":"We report significant fluorescence enhancements in a Corrole molecule which are directly adsorbed on copper chloride nanoparticles. The prominent emission bands near 622 nm and 646 nm were observed to undergo significant enhancements up to ~333 times.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113933112","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917648
M. Tiwari, V. Janyani
We propose a lead silicate all-solid photonic crystal fiber which exhibits enhanced nonlinearity and very flat and near-zero dispersion in anomalous region and is suitable for broadband supercontinuum with 50fs-2kW pulses pumped at 1.55 micrometer.
{"title":"Supercontinuum generation in all-solid photonic crystal fiber","authors":"M. Tiwari, V. Janyani","doi":"10.1109/WRAP.2013.6917648","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917648","url":null,"abstract":"We propose a lead silicate all-solid photonic crystal fiber which exhibits enhanced nonlinearity and very flat and near-zero dispersion in anomalous region and is suitable for broadband supercontinuum with 50fs-2kW pulses pumped at 1.55 micrometer.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116752435","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 : 2013-12-01DOI: 10.1109/WRAP.2013.6917655
S. Guddala, D. Narayana Rao, G. Vijaya Prakash
Intense optical field strengths result from redistributed photon density of states in hybrid metal-dielectric photonic crystals and microcavity structures are probed through spectral domain and angle resolved Raman scattering studies.
{"title":"Experimental investigation of redistributed photon DOS in hybrid metal-dielectric photonic crystals","authors":"S. Guddala, D. Narayana Rao, G. Vijaya Prakash","doi":"10.1109/WRAP.2013.6917655","DOIUrl":"https://doi.org/10.1109/WRAP.2013.6917655","url":null,"abstract":"Intense optical field strengths result from redistributed photon density of states in hybrid metal-dielectric photonic crystals and microcavity structures are probed through spectral domain and angle resolved Raman scattering studies.","PeriodicalId":386455,"journal":{"name":"Workshop on Recent Advances in Photonics (WRAP)","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2013-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123232678","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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