{"title":"Optical EEG (OEEG): A novel technique toward plug-and-play non-invasive brain imaging and human-machine interfacing","authors":"E. Kamrani, S. Hahn, S. H. Andy Yun","doi":"10.1109/IPCON.2015.7323644","DOIUrl":"https://doi.org/10.1109/IPCON.2015.7323644","url":null,"abstract":"Summary form only given. The human brain dynamics can be studied based on the fast-neuronal and slow-hemodynamic signals. Referring to the available brain imaging techniques, the electroencephalography (EEG) and Magnetoencephalography (MEG) can only measure the fast-neuronal signal. Positron-emission tomography (PET) and Functional-magnetic-resonance-imaging (tMRI) also can measure only the slowhemodynamic signal. However, the functional-near-infrared spectroscopy (fNIRS) is the only imaging system capable of detecting both fast-neuronal and slow-hemodynamic signals. In this research we have first implemented a miniaturized low-power fNIRS front-end using standard CMOS technology for monitoring the hemodynamic signals (HbO & HbR) in continuous wave (CW) and time-correlated single photon counting (TCSPC) modes of operation. A new on-chip implemented system (called Optical EEG: OEEG) is also proposed to estimate the neural activities based on the acquired optical data using fNIRS. This is the first proposed wholly optical system capable of monitoring neuronal and hemodynamic signals and it is the first step towards introducing an optical alternative system for EEG. In order to develop a real-time system, we have proposed detecting the stable, controllable and observable hemodynamic states of the brain, based on the continuous-discrete extended-Kalman-filter and bifurcation analysis of the balloon-model. It extracts and validates the states and verifies their stability, controllability and observability. The stable, controllable and observable states are used for further processing. In contrast to the other available complex techniques, the complexity of the proposed Algorithm is moderate and its implementation requires only raw data) extracted directly from a continuous-wave fNIRS-channel. The results confirm the efficiency of the proposed technique in dealing with noise and movement-artifacts. It increases the signal-to-noise-ratio (SNR) and the speed.","PeriodicalId":375462,"journal":{"name":"2015 IEEE Photonics Conference (IPC)","volume":"134 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134579388","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}
B. Zhu, Wei Liu, Zi-hui Zhang, Swee Tiam Tan, X. W. Sun, H. Demir
{"title":"Tandem InGaN/GaN light-emitting diodes","authors":"B. Zhu, Wei Liu, Zi-hui Zhang, Swee Tiam Tan, X. W. Sun, H. Demir","doi":"10.1109/IPCON.2015.7323507","DOIUrl":"https://doi.org/10.1109/IPCON.2015.7323507","url":null,"abstract":"Tandem LEDs in which active regions are connected by tunnel junctions show extraordinary efficiency improvement when compared with traditional LEDs and this is explained by relatively reduced forward voltage and more uniform carrier distribution.","PeriodicalId":375462,"journal":{"name":"2015 IEEE Photonics Conference (IPC)","volume":"149 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131803341","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}
{"title":"Fabrication of subwavelength grating based optical nano-hairs using ALD nano-patterning","authors":"I. Srimathi, W. Delaney, E. Johnson","doi":"10.1109/IPCON.2015.7323679","DOIUrl":"https://doi.org/10.1109/IPCON.2015.7323679","url":null,"abstract":"This paper introduces a novel concept for fabrication of subwavelength grating based beam shaping elements. The optical nano-hair structures are made from high-κ dielectrics using nano-patterning techniques and an atomic layer deposition tool.","PeriodicalId":375462,"journal":{"name":"2015 IEEE Photonics Conference (IPC)","volume":"142 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132602080","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}
{"title":"Polarization modulation techniques for intensity modulated links","authors":"M. Hutchinson, V. Urick, N. Frigo","doi":"10.1109/IPCON.2015.7323483","DOIUrl":"https://doi.org/10.1109/IPCON.2015.7323483","url":null,"abstract":"The use of a polarization modulator for intensity modulation is detailed. Issues encountered are discussed such as the state of polarization drift over time for various fiber lengths and the nonlinear effects of polarization dependent loss on link fidelity.","PeriodicalId":375462,"journal":{"name":"2015 IEEE Photonics Conference (IPC)","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132842208","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}
{"title":"Transmission in space-division multiplexed systems","authors":"R. Ryf","doi":"10.1109/IPCON.2015.7323737","DOIUrl":"https://doi.org/10.1109/IPCON.2015.7323737","url":null,"abstract":"We present the latest developments in multiple-input-multile-output (MIMO) based optical coherent transmission and present recent results performed over few-mode, multimode, and multicore fibers.","PeriodicalId":375462,"journal":{"name":"2015 IEEE Photonics Conference (IPC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132993098","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}
S. Latkowski, D. D’Agostino, P. J. van Veldhoven, H. Rabbani-Haghighi, B. Docter, H. Ambrosius, M. Smit, K. Williams, E. Bente
{"title":"Monolithically integrated tunable laser source operating at 2µm for gas sensing applications","authors":"S. Latkowski, D. D’Agostino, P. J. van Veldhoven, H. Rabbani-Haghighi, B. Docter, H. Ambrosius, M. Smit, K. Williams, E. Bente","doi":"10.1109/IPCON.2015.7323471","DOIUrl":"https://doi.org/10.1109/IPCON.2015.7323471","url":null,"abstract":"A tunable laser operating from 2015 - 2040 nm realized as a monolithic InP photonic integrated circuit is presented. The laser uses an intracavity tuning mechanism based on parallel asymmetric Mach-Zehnder interferometers with electro-refractive modulators. The device is intended for a single line gas spectroscopy and was designed and fabricated using a generic integration technology platform.","PeriodicalId":375462,"journal":{"name":"2015 IEEE Photonics Conference (IPC)","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132184825","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}
Y. Al-Qazwini, A. Noor, M. Yaacob, M. Mahdi, S. Harun
{"title":"Influence of design parameters on the performance of a refractive index sensor based on SPR in plastic optical fibers","authors":"Y. Al-Qazwini, A. Noor, M. Yaacob, M. Mahdi, S. Harun","doi":"10.1109/IPCON.2015.7323448","DOIUrl":"https://doi.org/10.1109/IPCON.2015.7323448","url":null,"abstract":"We report a refractive-index sensor based on surface plasmon resonance in etched plastic optical-fibers. Impact of fiber residual thickness and sensing length on the sensor's sensitivity is experimentally investigated.","PeriodicalId":375462,"journal":{"name":"2015 IEEE Photonics Conference (IPC)","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132647337","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}
R. Thomas, M. Holton, A. Sobiesierski, S. Gillgrass, H. Summers, D. Barrow, P. Smowton
{"title":"Integrated III–V semiconductor flow cytometer with capillary fill micro-fluidics","authors":"R. Thomas, M. Holton, A. Sobiesierski, S. Gillgrass, H. Summers, D. Barrow, P. Smowton","doi":"10.1109/IPCON.2015.7323580","DOIUrl":"https://doi.org/10.1109/IPCON.2015.7323580","url":null,"abstract":"The potential of the device is demonstrated through the results of a micro-bead counting experiment. A 0.5 μl sample volume containing 10 μm polystyrene micro-beads in Dl water is deposited into an on-chip inlet reservoir from where it flows, under capillary action, through a buried flow cell. A laser on one side of the cell is forward biased and the opposing laser is operated as a photodiode. Both are pulsed to provide sub-μs time-resolution of bead transit `events' with a 30 mV noise floor that affords a large dynamic range of over 1.2 V. After passing through the flow cell the sample fluid is drawn into a spiral patterned exit reservoir that provides sufficient pull through to sustain a continuous flow for over 30 s with flow rate of > 4mm/s.","PeriodicalId":375462,"journal":{"name":"2015 IEEE Photonics Conference (IPC)","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124124935","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}
Xun Wang, Il-Pyeong Hwang, Seung-Hyeon Ahn, Changhee Lee
{"title":"Coexistence of a quantum channel and classical channels in passive optical networks","authors":"Xun Wang, Il-Pyeong Hwang, Seung-Hyeon Ahn, Changhee Lee","doi":"10.1109/IPCON.2015.7323632","DOIUrl":"https://doi.org/10.1109/IPCON.2015.7323632","url":null,"abstract":"We investigate feasibility of coexistence of a quantum channel and classical channels in a single fiber for passive optical networks (PONs) based on time division multiplexing (TDM) or wavelength division multiplexing (WDM) technologies.","PeriodicalId":375462,"journal":{"name":"2015 IEEE Photonics Conference (IPC)","volume":"14 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124323098","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}
Y. Yoo, D. Kuk, E. Rosenthal, N. Jhajj, H. Milchberg, Ki-Yong Kim
{"title":"Terahertz generation from cylindircally focused two-color laser pulses in air","authors":"Y. Yoo, D. Kuk, E. Rosenthal, N. Jhajj, H. Milchberg, Ki-Yong Kim","doi":"10.1109/IPCON.2015.7323604","DOIUrl":"https://doi.org/10.1109/IPCON.2015.7323604","url":null,"abstract":"We have demonstrated scalable terahertz generation by cylindrically focusing two-color terawatt laser pulses in air. Cylindrical focusing forms a 2-dimensional plasma sheet, simultaneously emitting terahertz radiation in two parallel lobes. We have also refocused the radiation and characterized its profile with an uncooled microbolometer camera.","PeriodicalId":375462,"journal":{"name":"2015 IEEE Photonics Conference (IPC)","volume":"412 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2015-11-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124406974","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}