Pub Date : 2016-04-06DOI: 10.4172/2469-410X.C1.001
Kazuhisa Kakurai
{"title":"Quantum beam science: A bridge between nuclear science and nuclear application","authors":"Kazuhisa Kakurai","doi":"10.4172/2469-410X.C1.001","DOIUrl":"https://doi.org/10.4172/2469-410X.C1.001","url":null,"abstract":"","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78235933","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 : 2016-04-06DOI: 10.4172/2469-410X.C1.003
Marcelino AnguianoMorales Didia P SalasPeimbert Gerardo Truj CorralMartinez, Ismael GardunoWilches
W get no light from Black-Holes because the escape velocity of the black-holes is greater than the speed of light. Going by the data, the probability of a neutrino to fall in this atomic zone (50-100 nucleus) is 10-2-10-4 /s. If a neutrino hits an atom (neutron), its frequency becomes nearly about 10-18Hz that is the frequency of γ ray). This neutron oscillates adjacent 50-100 nucleus. It is cleared from the data that a neutrino hits an atom in this atomic zone after 100 or 10000 seconds supply oscillatory energy to gluons. We know that the coefficient of restitution is ≈1, so after 100 or 10000 seconds, its velocity changes insignificantly. I also proved that mass of a photon at speed C is not equal to infinitive.
{"title":"Analysis of self-healing mechanism in asymmetric beams","authors":"Marcelino AnguianoMorales Didia P SalasPeimbert Gerardo Truj CorralMartinez, Ismael GardunoWilches","doi":"10.4172/2469-410X.C1.003","DOIUrl":"https://doi.org/10.4172/2469-410X.C1.003","url":null,"abstract":"W get no light from Black-Holes because the escape velocity of the black-holes is greater than the speed of light. Going by the data, the probability of a neutrino to fall in this atomic zone (50-100 nucleus) is 10-2-10-4 /s. If a neutrino hits an atom (neutron), its frequency becomes nearly about 10-18Hz that is the frequency of γ ray). This neutron oscillates adjacent 50-100 nucleus. It is cleared from the data that a neutrino hits an atom in this atomic zone after 100 or 10000 seconds supply oscillatory energy to gluons. We know that the coefficient of restitution is ≈1, so after 100 or 10000 seconds, its velocity changes insignificantly. I also proved that mass of a photon at speed C is not equal to infinitive.","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72901171","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 : 2016-03-01DOI: 10.4172/2469-410X.1000128
B. Deepalakshmi, G. Maruthachalam
To meet energy-efficient performance needs, the computation has positioned to parallel computer architectures, such as chip multiprocessors (CMPs), internally interconnected via networks-on-Chip (NoC) to achieve increasing communication needs. To accomplish scaling execution as center include increment to the hundreds future CMPs, all things considered, will require elite, yet vitality productive interconnects. Silicon Nano photonics is a promising swap for electronic on-chip interconnect for its high data transfer capacity and low inactivity, by the by, earlier methods have required high static force for the laser and warm ring tuning. We propose novel Nano photonic NoC (PNoC) design, upgraded for elite and force effectiveness. This paper makes three essential elements: a novel, Nano photonic engineering which isolates the system into subnets for better productivity; an exclusively photonic, inband, appropriated discretion plan; and a channel sharing schematic are using the same waveguides and wavelengths for intervention as information transmission. As a result the interconnection can be reduced latency with increased throughput.
{"title":"Photonic Approach to Optimize Energy Consumption for On-chip Clos Network","authors":"B. Deepalakshmi, G. Maruthachalam","doi":"10.4172/2469-410X.1000128","DOIUrl":"https://doi.org/10.4172/2469-410X.1000128","url":null,"abstract":"To meet energy-efficient performance needs, the computation has positioned to parallel computer architectures, such as chip multiprocessors (CMPs), internally interconnected via networks-on-Chip (NoC) to achieve increasing communication needs. To accomplish scaling execution as center include increment to the hundreds future CMPs, all things considered, will require elite, yet vitality productive interconnects. Silicon Nano photonics is a promising swap for electronic on-chip interconnect for its high data transfer capacity and low inactivity, by the by, earlier methods have required high static force for the laser and warm ring tuning. We propose novel Nano photonic NoC (PNoC) design, upgraded for elite and force effectiveness. This paper makes three essential elements: a novel, Nano photonic engineering which isolates the system into subnets for better productivity; an exclusively photonic, inband, appropriated discretion plan; and a channel sharing schematic are using the same waveguides and wavelengths for intervention as information transmission. As a result the interconnection can be reduced latency with increased throughput.","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84666841","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 : 2016-01-15DOI: 10.4172/2469-410X.1000127
Vegas Olmos Jj, I. Monroy, P. Madsen, L. Suhr, B. Cimoli, T. Johansen, Zhurbenko
Optical links using traditional modulation formats are reaching a plateau in terms of capacity, mainly due to bandwidth limitations in the devices employed at the transmitter and receivers. Advanced modulation formats, which boost the spectral efficiency, provide a smooth migration path towards effectively increase the available capacity. Advanced modulation formats however require digitalization of the signals and digital signal processing blocks to both generate and recover the data. There is therefore a trade-off in terms of efficiency gain vs complexity. Polybinary modulation, a generalized form of partial response modulation, employs simple codification and filtering at the transmitter to drastically increase the spectral efficiency. At the receiver side, polybinary modulation requires low complexity direct detection and very little digital signal processing. This paper provides an overview of the current research status of the key building blocks in polybinary systems. The results clearly show how polybinary modulation effectively reduces the bandwidth requirements on optical links while providing high spectral efficiency.
{"title":"Challenges in Polybinary Modulation for Bandwidth Limited Optical Links","authors":"Vegas Olmos Jj, I. Monroy, P. Madsen, L. Suhr, B. Cimoli, T. Johansen, Zhurbenko","doi":"10.4172/2469-410X.1000127","DOIUrl":"https://doi.org/10.4172/2469-410X.1000127","url":null,"abstract":"Optical links using traditional modulation formats are reaching a plateau in terms of capacity, mainly due to bandwidth limitations in the devices employed at the transmitter and receivers. Advanced modulation formats, which boost the spectral efficiency, provide a smooth migration path towards effectively increase the available capacity. Advanced modulation formats however require digitalization of the signals and digital signal processing blocks to both generate and recover the data. There is therefore a trade-off in terms of efficiency gain vs complexity. Polybinary modulation, a generalized form of partial response modulation, employs simple codification and filtering at the transmitter to drastically increase the spectral efficiency. At the receiver side, polybinary modulation requires low complexity direct detection and very little digital signal processing. This paper provides an overview of the current research status of the key building blocks in polybinary systems. The results clearly show how polybinary modulation effectively reduces the bandwidth requirements on optical links while providing high spectral efficiency.","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89215214","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 : 2016-01-01DOI: 10.4172/2469-410X.C1.007
V. Bougrov
{"title":"Wide band-gap semiconductor materials with low defect density for future high-power nanophotonics and electronics","authors":"V. Bougrov","doi":"10.4172/2469-410X.C1.007","DOIUrl":"https://doi.org/10.4172/2469-410X.C1.007","url":null,"abstract":"","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86304565","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 : 2016-01-01DOI: 10.4172/2469-410X.1000144
Bell, Ngcobo
In this paper, we use a digital laser to generate high-radial-order Laguerre-Gaussian, LGp,0 modes by loading digital holograms on a phase-only spatial light modulator that act as an end mirror of a diode-end-pumped laser resonator. The digital holograms were encoded with an amplitude ring mask, which contained absorption rings that match the p-zeros of the Laguerre polynomial. We demonstrate the generation of high-quality LGp,0 modes with a mode volume that is directly proportional to the mode order, p. This work demonstrates the possible of using the digital laser as a tool for simulating optical elements that will be used in pursuing high brightness lasers.
{"title":"Selective Excitation of Higher-radial-order Laguerre-Gaussian BeamsUsing a Solid-state Digital Laser","authors":"Bell, Ngcobo","doi":"10.4172/2469-410X.1000144","DOIUrl":"https://doi.org/10.4172/2469-410X.1000144","url":null,"abstract":"In this paper, we use a digital laser to generate high-radial-order Laguerre-Gaussian, LGp,0 modes by loading digital holograms on a phase-only spatial light modulator that act as an end mirror of a diode-end-pumped laser resonator. The digital holograms were encoded with an amplitude ring mask, which contained absorption rings that match the p-zeros of the Laguerre polynomial. We demonstrate the generation of high-quality LGp,0 modes with a mode volume that is directly proportional to the mode order, p. This work demonstrates the possible of using the digital laser as a tool for simulating optical elements that will be used in pursuing high brightness lasers.","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2016-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74499884","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 : 2015-12-05DOI: 10.4172/2469-410X.1000125
M. An, Shehata Wi, Phillips Ah
Mass detection of molecules using single layer graphene sheet is investigated in the present paper. A nanoelectromechanical system resonator device is proposed which is modeled as single layer graphene coupled to electronic transport through such device via two metallic leads. The conductance of such device is deduced by solving eigenvalue differential equation. The influence of both photon energy of an induced ac-field and magnetic field are taken into consideration. The present results show that both the resonant frequency shift and the quality factor are very sensitive to the mass of certain molecule. Also, the photon energy of the induced ac-field enhances the sensitivity of these parameters. The present research is very important for detecting the mass of both chemical molecules and bio-molecules. This can be achieved experimentally by measuring the quantum conductance of the present device, which is related to the resonant frequency shift and the quality factor.
{"title":"Single Layer Graphene Sheet-based Nanoelectromechanical Resonator as Mass Detection","authors":"M. An, Shehata Wi, Phillips Ah","doi":"10.4172/2469-410X.1000125","DOIUrl":"https://doi.org/10.4172/2469-410X.1000125","url":null,"abstract":"Mass detection of molecules using single layer graphene sheet is investigated in the present paper. A nanoelectromechanical system resonator device is proposed which is modeled as single layer graphene coupled to electronic transport through such device via two metallic leads. The conductance of such device is deduced by solving eigenvalue differential equation. The influence of both photon energy of an induced ac-field and magnetic field are taken into consideration. The present results show that both the resonant frequency shift and the quality factor are very sensitive to the mass of certain molecule. Also, the photon energy of the induced ac-field enhances the sensitivity of these parameters. The present research is very important for detecting the mass of both chemical molecules and bio-molecules. This can be achieved experimentally by measuring the quantum conductance of the present device, which is related to the resonant frequency shift and the quality factor.","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89566984","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 : 2015-11-25DOI: 10.4172/2469-410X.1000126
Y. Zhang, Y. Gu, Xing-you Chen, Yingjie Ma, Yuanying Cao, Li Zhou, S. Xi, B. Du, Ai-zhen Li, Hsby Li
Zhang et al. efforts on the explore of InP-based Sb-free 2-3 μm band lasers and photodetectors are introduced, including the 2-2.5 μm band type I InGaAs MQW lasers under pseudomorphic triangle well scheme, 2.5-3.0 μm band type I InAs MQW lasers under metamorphic strain compensated well scheme, as well as InGaAs photodetectors of high indium contents with cut-off wavelength large than 1.7 μm. All device structures are grown using gas source MBE method, and CW operation above room temperature have been reached for the lasers with wavelength less than 2.5 μm. Pulse operation of 2.9 μm lasers at TE temperature also have been reached The dark current of 2.6 μm InGaAs photodetectors have been decreased notably with the inserting of supperlattice electron barriers, those types of epitaxial materials have been used to the development of FPA modules for space remote sensing applications.
{"title":"InP-based Sb-free Lasers and Photodetectors in 2-3 μm Band","authors":"Y. Zhang, Y. Gu, Xing-you Chen, Yingjie Ma, Yuanying Cao, Li Zhou, S. Xi, B. Du, Ai-zhen Li, Hsby Li","doi":"10.4172/2469-410X.1000126","DOIUrl":"https://doi.org/10.4172/2469-410X.1000126","url":null,"abstract":"Zhang et al. efforts on the explore of InP-based Sb-free 2-3 μm band lasers and photodetectors are introduced, including the 2-2.5 μm band type I InGaAs MQW lasers under pseudomorphic triangle well scheme, 2.5-3.0 μm band type I InAs MQW lasers under metamorphic strain compensated well scheme, as well as InGaAs photodetectors of high indium contents with cut-off wavelength large than 1.7 μm. All device structures are grown using gas source MBE method, and CW operation above room temperature have been reached for the lasers with wavelength less than 2.5 μm. Pulse operation of 2.9 μm lasers at TE temperature also have been reached The dark current of 2.6 μm InGaAs photodetectors have been decreased notably with the inserting of supperlattice electron barriers, those types of epitaxial materials have been used to the development of FPA modules for space remote sensing applications.","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84049495","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 : 2015-11-25DOI: 10.4172/2469-410X.1000124
Lauryna Petraviciute Lotscher, L. Vámos, L. Veisz, A. Apolonski
Long-term stability of a laser system is crucially important for applications such as ultrafast laser spectroscopy. Unfortunately, this topic received little attention in novel pulse compression schemes. Through the ultra-stable beam pointing of the 50 kHz laser system, the long-term stability of nonlinear pulse compression (NPC) was measured for up to 17 hours at different peak powers in a fiber core. The required spectral broadening was achieved in largemode- area photonic-crystal-fibers with linearly and circularly polarized light. The optimal parameters of a NPC system operating close to the fundamental limit of the critical self-focusing peak power were found. A further compression to sub-10 fs pulses in a second fiber stage is also discussed.
{"title":"Long-term Stability of Nonlinear Pulse Compression using Solid-core Large-mode-area Fibers","authors":"Lauryna Petraviciute Lotscher, L. Vámos, L. Veisz, A. Apolonski","doi":"10.4172/2469-410X.1000124","DOIUrl":"https://doi.org/10.4172/2469-410X.1000124","url":null,"abstract":"Long-term stability of a laser system is crucially important for applications such as ultrafast laser spectroscopy. Unfortunately, this topic received little attention in novel pulse compression schemes. Through the ultra-stable beam pointing of the 50 kHz laser system, the long-term stability of nonlinear pulse compression (NPC) was measured for up to 17 hours at different peak powers in a fiber core. The required spectral broadening was achieved in largemode- area photonic-crystal-fibers with linearly and circularly polarized light. The optimal parameters of a NPC system operating close to the fundamental limit of the critical self-focusing peak power were found. A further compression to sub-10 fs pulses in a second fiber stage is also discussed.","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89105296","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 : 2015-10-20DOI: 10.4172/2469-410X.1000123
A. Islam
This paper presents a highly birefringent dispersion compensating microstructure modified decagonal photonic crystal fiber for broadband transmission communication system. According to simulation, negative dispersion coefficient of -610 ps/(nm.km) and a relative dispersion slope (RDS) close to that of single mode fiber of about 0.0036 nm-1 with birefringence of the order 2.1×10-2 was obtained at 1550 nm. The variation of structural parameters is also studied to evaluate the tolerance of the fabrication. Moreover, effective area, residual dispersion, effective dispersion, confinement loss, and nonlinear coefficient of the proposed modified decagonal photonic crystal fiber (M-DPCF) are also mentioned and discussed.
{"title":"Broadband Dispersion Compensation of Single Mode Fiber by using Modified Decagonal Photonic Crystal Fiber having High Birefringence","authors":"A. Islam","doi":"10.4172/2469-410X.1000123","DOIUrl":"https://doi.org/10.4172/2469-410X.1000123","url":null,"abstract":"This paper presents a highly birefringent dispersion compensating microstructure modified decagonal photonic crystal fiber for broadband transmission communication system. According to simulation, negative dispersion coefficient of -610 ps/(nm.km) and a relative dispersion slope (RDS) close to that of single mode fiber of about 0.0036 nm-1 with birefringence of the order 2.1×10-2 was obtained at 1550 nm. The variation of structural parameters is also studied to evaluate the tolerance of the fabrication. Moreover, effective area, residual dispersion, effective dispersion, confinement loss, and nonlinear coefficient of the proposed modified decagonal photonic crystal fiber (M-DPCF) are also mentioned and discussed.","PeriodicalId":92245,"journal":{"name":"Journal of lasers, optics & photonics","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2015-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85016489","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：