Pub Date : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421934
D. Miller
Future high performance information switching and processing systems face severe problems especially in interconnect density and energy We project the requirements for optoelectronic and optical devices for optics to solve such problems and suggest solutions.
{"title":"Photonics for interconnect inside machines","authors":"D. Miller","doi":"10.1109/PHOTWTM.2010.5421934","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421934","url":null,"abstract":"Future high performance information switching and processing systems face severe problems especially in interconnect density and energy We project the requirements for optoelectronic and optical devices for optics to solve such problems and suggest solutions.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"116 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122572965","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421951
Qimin Yang
QoS in switching networks requires throughput differentiation support. In Data Vortex networks, a partially unwrapped layout is proposed to create such differentiation by leaking lower priority traffic at some angles. Network performance is reported.
{"title":"Throughput differentiation in Data Vortex switch network","authors":"Qimin Yang","doi":"10.1109/PHOTWTM.2010.5421951","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421951","url":null,"abstract":"QoS in switching networks requires throughput differentiation support. In Data Vortex networks, a partially unwrapped layout is proposed to create such differentiation by leaking lower priority traffic at some angles. Network performance is reported.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126434517","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421920
K. Ding, R. B. Liu, H. Wang, M. Hill, M. Smit, C. Ning
A new plasmonic bowtie nanolaser structure is fabricated where a semiconductor gain core is enclosed by a metal shell with bowtie cross section built-in. Light emission characteristics under electrical injection will be reported.
{"title":"Semiconductor-metal core-shell plasmonic nanolasers with a bowtie antenna cross section","authors":"K. Ding, R. B. Liu, H. Wang, M. Hill, M. Smit, C. Ning","doi":"10.1109/PHOTWTM.2010.5421920","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421920","url":null,"abstract":"A new plasmonic bowtie nanolaser structure is fabricated where a semiconductor gain core is enclosed by a metal shell with bowtie cross section built-in. Light emission characteristics under electrical injection will be reported.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126763006","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421943
P. Berggren
Blood glucose homeostasis is tightly regulated by the endocrine pancreas, the islets of Langerhans, under normal conditions. This is made possible by a well-concerted secretion and action of the pancreatic hormones insulin, glucagon and somatostatin from β-cells, α-cells and δ-cells, respectively. These cells are regulated very precisely by nutrients as well as by autocrine, endocrine, paracrine and nervous signals, all being integrated at the cell level. However, since the various hormone secreting cells are part of and responsible for the formation of the architecture of the islet of Langerhans, this micro-organ is the master integrator of endocrine pancreas signaling. If signaling, at any level, is disturbed hormone release will be impaired and as a consequence diabetes develops.
{"title":"The islet of Langerhans is a master regulator of glucose homeostasis","authors":"P. Berggren","doi":"10.1109/PHOTWTM.2010.5421943","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421943","url":null,"abstract":"Blood glucose homeostasis is tightly regulated by the endocrine pancreas, the islets of Langerhans, under normal conditions. This is made possible by a well-concerted secretion and action of the pancreatic hormones insulin, glucagon and somatostatin from β-cells, α-cells and δ-cells, respectively. These cells are regulated very precisely by nutrients as well as by autocrine, endocrine, paracrine and nervous signals, all being integrated at the cell level. However, since the various hormone secreting cells are part of and responsible for the formation of the architecture of the islet of Langerhans, this micro-organ is the master integrator of endocrine pancreas signaling. If signaling, at any level, is disturbed hormone release will be impaired and as a consequence diabetes develops.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"100 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126576425","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421998
S. Koch, M. Kira
In the last few years, the interaction of terahertz (THz) radiation with many-electron systems in semiconductors, metals, graphene, or other materials has attracted significant attention worldwide. After our original suggestion to used THz radiation to identify excitonic populations in semiconductors [1], our group proceeded to developed a microscopic many-body approach [2–5] that allows us to quantitatively model and explain a large variety of experiments. This theory goes well beyond the widely used Drude model by systematically including the full quantum nature of the Fermionic electrons and their Coulombic interaction effects. The ponderomotive and the intrinsic THz contributions to the measured THz response are clearly identified and their often intricate interplay is analyzed. So far, the theory has been used to successfully describe excitonic population effects in laser excited semiconductors [6,7], the generation of THz gain via non-resonant optical pumping [8], the ultrafast response of semiconductors to single-cycle THz pulses [9], as well as the coherent THz control of optically dark excitonic populations [10]. The interaction of electron plasmas with THz radiation has been studied [11, 12] and the detection of THz radiation with diode lasers has been analyzed [13]. Recent work includes the study of Fano signatures in the intersubband THz response of optically excited quantum wells [14], the THz-detection of plasmonic resonances in quantum wells and high-mobility transistor structures, the THz response of grapheme, as well as extreme nonlinear optical effects of semiconductors and metals under intense THz irradiation.
{"title":"Modelling the interaction between terahertz radiation and semiconductors","authors":"S. Koch, M. Kira","doi":"10.1109/PHOTWTM.2010.5421998","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421998","url":null,"abstract":"In the last few years, the interaction of terahertz (THz) radiation with many-electron systems in semiconductors, metals, graphene, or other materials has attracted significant attention worldwide. After our original suggestion to used THz radiation to identify excitonic populations in semiconductors [1], our group proceeded to developed a microscopic many-body approach [2–5] that allows us to quantitatively model and explain a large variety of experiments. This theory goes well beyond the widely used Drude model by systematically including the full quantum nature of the Fermionic electrons and their Coulombic interaction effects. The ponderomotive and the intrinsic THz contributions to the measured THz response are clearly identified and their often intricate interplay is analyzed. So far, the theory has been used to successfully describe excitonic population effects in laser excited semiconductors [6,7], the generation of THz gain via non-resonant optical pumping [8], the ultrafast response of semiconductors to single-cycle THz pulses [9], as well as the coherent THz control of optically dark excitonic populations [10]. The interaction of electron plasmas with THz radiation has been studied [11, 12] and the detection of THz radiation with diode lasers has been analyzed [13]. Recent work includes the study of Fano signatures in the intersubband THz response of optically excited quantum wells [14], the THz-detection of plasmonic resonances in quantum wells and high-mobility transistor structures, the THz response of grapheme, as well as extreme nonlinear optical effects of semiconductors and metals under intense THz irradiation.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126872114","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421964
A. Curatolo, T. Hillman, B. Kennedy, D. Sampson
Angular diversity ¡s a successful speckle reduction technique in optical coherence tomography. We employ the same technique for a different purpose: discriminating between the singly backscattered and multiply scattered signal components.
{"title":"Multiple scattering detection in optical coherence tomography using speckle statistics","authors":"A. Curatolo, T. Hillman, B. Kennedy, D. Sampson","doi":"10.1109/PHOTWTM.2010.5421964","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421964","url":null,"abstract":"Angular diversity ¡s a successful speckle reduction technique in optical coherence tomography. We employ the same technique for a different purpose: discriminating between the singly backscattered and multiply scattered signal components.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"119 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134392678","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421938
M. Glick
Data intensive applications are driving up bandwidth requirements and creating new challenges in data centers. To achieve acceptance of optical switching and routing as a viable solution, technical challenges must be overcome and end-to-end solutions demonstrated.
{"title":"Optical switching and routing for the data center","authors":"M. Glick","doi":"10.1109/PHOTWTM.2010.5421938","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421938","url":null,"abstract":"Data intensive applications are driving up bandwidth requirements and creating new challenges in data centers. To achieve acceptance of optical switching and routing as a viable solution, technical challenges must be overcome and end-to-end solutions demonstrated.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123305557","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421980
S. Zarei, M. Jarrahi
We present a terahertz modulation scheme which employs reconfigurable metallic slits to achieve higher modulation depth and higher modulation bandwidth compared to the state-of-the art. The initial theoretical and experimental results promise feasibility of a terahertz modulation depth of more than 4.5 over a broad modulation bandwidth of 2THz.
{"title":"Broadband terahertz modulation based on reconfigurable metallic slits","authors":"S. Zarei, M. Jarrahi","doi":"10.1109/PHOTWTM.2010.5421980","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421980","url":null,"abstract":"We present a terahertz modulation scheme which employs reconfigurable metallic slits to achieve higher modulation depth and higher modulation bandwidth compared to the state-of-the art. The initial theoretical and experimental results promise feasibility of a terahertz modulation depth of more than 4.5 over a broad modulation bandwidth of 2THz.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123599470","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421967
Seung Jae Oh, Jihye Choi, I. Maeng, J. Suh, Yong-Min Huh, S. Haam, J. Son
We present the principle and in vivo experimental results of high sensitivity terahertz imaging technique which enables the target specific sensing of cancers and the molecular imaging of drug delivery.
{"title":"High-sensitivity terahertz imaging technique using nanoparticle probes for medical applications","authors":"Seung Jae Oh, Jihye Choi, I. Maeng, J. Suh, Yong-Min Huh, S. Haam, J. Son","doi":"10.1109/PHOTWTM.2010.5421967","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421967","url":null,"abstract":"We present the principle and in vivo experimental results of high sensitivity terahertz imaging technique which enables the target specific sensing of cancers and the molecular imaging of drug delivery.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124741250","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 : 2010-02-25DOI: 10.1109/PHOTWTM.2010.5421968
Y. Ji, Sang Hoon Kim, E. Lee, J. Son, Tae-In Jeon
We developed optical fiber-coupled terahertz (THz) endoscope system which utilized a photoconductive generator and detector driven by a mode-locked Ti:sapphire laser. For a feasibility test, the endoscopic system was used to measure reflective THz signals from the side wall of the mouth, tongue, and palm of hand as well as from water for comparison. The absorption and refractive index of the side wall of the mouth and tongue were similar to those of water but those of the palm of hand were less than water.
{"title":"Development of optical fiber-coupled terahertz endoscope","authors":"Y. Ji, Sang Hoon Kim, E. Lee, J. Son, Tae-In Jeon","doi":"10.1109/PHOTWTM.2010.5421968","DOIUrl":"https://doi.org/10.1109/PHOTWTM.2010.5421968","url":null,"abstract":"We developed optical fiber-coupled terahertz (THz) endoscope system which utilized a photoconductive generator and detector driven by a mode-locked Ti:sapphire laser. For a feasibility test, the endoscopic system was used to measure reflective THz signals from the side wall of the mouth, tongue, and palm of hand as well as from water for comparison. The absorption and refractive index of the side wall of the mouth and tongue were similar to those of water but those of the palm of hand were less than water.","PeriodicalId":367324,"journal":{"name":"2010 IEEE Photonics Society Winter Topicals Meeting Series (WTM)","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-02-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121672249","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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