2014
2014
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Record 49 of
Title:Toward a biometric-aware cloud service engine for multi-screen video applications
Author(s):Hu, Han(1); Jin, Yichao(2); Wen, Yonggang(2); Chua, Tat-Seng(1); Li, Xuelong(3)Source: SIGCOMM 2014 - Proceedings of the 2014 ACM Conference on Special Interest Group on Data Communication Volume: Issue: DOI: 10.1145/2619239.2631430 Published: 2014Abstract:The emergence of portable devices and online social networks (OSNs) has changed the traditional video consumption paradigm by simultaneously providing multi-screen video watching, social networking engagement, etc. One challenge is to design a unified solution to support ever-growing features while guarantee system performance. In this demo, we design and implement a multi-screen technology to provide multi-screen interactions over wide area network (WAN). Furthermore, we incorporate face-detection technology into our system to identify users' bio-features and employ a machine learning based traffic scheduling mechanism to improve the system performance. ? 2014 Authors.Accession Number: 20143718155909 -
Record 50 of
Title:Design of optical system for SG-III near backscatter diagnosis
Author(s):Yan, Ya-Dong(1); He, Jun-Hua(1); Wang, Feng(2); Zhang, Min(1); Li, Shi-Bo(1,3)Source: Guangxue Jingmi Gongcheng/Optics and Precision Engineering Volume: 22 Issue: 6 DOI: 10.3788/OPE.20142206.1469 Published: June 2014Abstract:After analysis the collecting methods of near backscatter light in laser fusion, a metal ellipsoidal mirror was proposed to collect the near backscatter light of SG-III laser facility. Then, the method to determine the parameters of ellipsoidal mirror was discussed. The mirror is composed of four pieces, which makes it entering into the target chamber easily. The mirror is made of super hard aluminum, and a triangular weight reducing slot is designed on the back of the mirror to reduce its weight and improve its mechanical stability. The overall structure of the optical system was introduced, and the light gathering performance was simulated using optical software. The key issues in ellipsoidal mirror design, including material selection and structure selection, were analyzed. In order to avoid rework, a semiconductor laser array was developed specially to test the surface in design processing. The stray lights in the system were analyzed, physical isolation, optical absorbing and optical filters were used to control them. The ring ellipsoidal mirror with a weight of 48 kg has an outside diameter of 1200 mm, an inside diameter of 400 mm, the maximum off-axis magnitude of 1411 mm, and the maximum thickness of 67 mm. The image spot size is about 1.2 mm within a field of view 5 mm. This system mentioned above can offer a reference for near backscatter diagnostic in inertial confinement fusion research.Accession Number: 20142817936037 -
Record 51 of
Title:Functionalized polyaniline based membranes for water purification
Author(s):Min, Yong(1,2); Yu, Youhai(1); Wang, Dewei(1); Fan, Tianju(2); Kinstedt, Katie(3); Walker, Harold W.(3); Liu, Yidong(2,4)Source: Separations Division 2014 - Core Programming Area at the 2014 AIChE Annual Meeting Volume: 2 Issue: DOI: Published: 2014Abstract:nullAccession Number: 20160301805815 -
Record 52 of
Title:Road vehicle information collection system based on distributed fiber optics sensor
Author(s):Feng, Li Li(1); Wang, Yun Tao(1); Ruan, Chi(1); Tao, Sheng(2)Source: Advanced Materials Research Volume: 1030-1032 Issue: DOI: 10.4028/www.scientific.net/AMR.1030-1032.2105 Published: 2014Abstract:A novel distributed fiber optics sensor used for road vehicle information collection system was proposed. Optical fiber was fixed on the road surface to be used as the sensing media. The vehicle information such as speed, vehicle type, vehicle weight and traffic flow can be obtained. To increase the sensitivity of such sensor, an optical Fabry-Perot (F-P) fiber interference was used. Sensing optical fiber was designed to be with a metal coating for fiber protection and high performance. Experiment results show that such distributed fiber optics sensor may be with a high performance in transportation area without digging when it is installed on the road surface. ? (2014) Trans Tech Publications, Switzerland.Accession Number: 20144900291930 -
Record 53 of
Title:Direct generation of orthogonally polarized photon pairs via spontaneous non-degenerate FWM on a chip
Author(s):Reimer, Christian(1); Caspani, Lucia(1); Jestin, Yoann(1); Clerici, Matteo(1,2); Ferrera, Marcello(1,2); Peccianti, Marco(1,3); Pasquazi, Alessia(1,3); Litte, Brent E.(4); Chu, Sai T.(5); Moss, David J.(1,6); Morandotti, Roberto(1)Source: Frontiers in Optics, FiO 2014 Volume: Issue: DOI: 10.1364/fio.2014.ftu2a.2 Published: October 14, 2014Abstract:Orthogonally polarized photon pairs are directly generated on a CMOS-compatible chip via spontaneous non-degenerate four-wave-mixing between orthogonally polarized pumps, enabled by suppressing stimulated processes. Photon coincidences and optical parametric oscillation are measured. ? OSA 2014.Accession Number: 20145200370141 -
Record 54 of
Title:CMOS compatible nonlinear optics based on Hydex
Author(s):Caspani, Lucia(1); Pasquazi, Alessia(1,2); Peccianti, Marco(1,2); Reimer, Christian(1); Clerici, Matteo(1,3); Ferrera, Marcello(1,3); Razzari, Luca(1); Duchesne, David(1); Little, Brent E.(4); Chu, Sai T.(5); Moss, David J.(1,6); Morandotti, R.(1)Source: 2014 OptoElectronics and Communication Conference, OECC 2014 and Australian Conference on Optical Fibre Technology, ACOFT 2014 Volume: Issue: DOI: Published: 2014Abstract:We review our work on ultrafast laser sources and frequency generation in high-index doped silica (Hydex?) integrated structures. ? 2014 Engineers Australia.Accession Number: 20143918176766 -
Record 55 of
Title:Integrated source of multiplexed heralded photons
Author(s):Reimer, Christian(1); Caspani, Lucia(1); Clerici, Matteo(1,2); Ferrera, Marcello(1,2); Kues, Michael(1); Peccianti, Marco(1,3); Pasquazi, Alessia(1,3); Razzari, Luca(1); Little, Brent E.(4); Chu, Sai T.(5); Moss, David J.(1,6); Morandotti, Roberto(1)Source: Proceedings - 2014 Summer Topicals Meeting Series, SUM 2014 Volume: Issue: DOI: 10.1109/SUM.2014.80 Published: September 18, 2014Abstract:We report an integrated, CMOS-compatible source of multiplexed heralded photons, distributed over several wavelengths at standard communication channels and compatible with quantum memories. Our system operates in a self-locked mode without an external pump laser. ? 2014 IEEE.Accession Number: 20144600188388 -
Record 56 of
Title:CMOS compatible integrated all-optical radio frequency spectrum analyzer
Author(s):Ferrera, Marcello(1,2); Reimer, Christian(1); Pasquazi, Alessia(3); Peccianti, Marco(3); Clerici, Matteo(1,2); Caspani, Lucia(1); Chu, Sai T.(4); Little, Brent E.(5); Morandotti, Roberto(1); Moss, David J.(1,6)Source: Optics Express Volume: 22 Issue: 18 DOI: 10.1364/OE.22.021488 Published: September 8, 2014Abstract:We report an integrated all-optical radio frequency spectrum analyzer based on a ～4cm long doped silica glass waveguide, with a bandwidth greater than 2.5 THz. We use this device to characterize the intensity power spectrum of ultrahigh repetition rate mode-locked lasers at repetition rates up to 400 GHz, and observe dynamic noise related behavior not observable with other techniques. ?2014 Optical Society of America.Accession Number: 20144000079601 -
Record 57 of
Title:Direct generation of orthogonally polarized photon pairs on a chip via spontaneous non-degenerate FWM
Author(s):Reimer, Christian(1); Caspani, Lucia(1); Jestin, Yoann(1); Clerici, Matteo(1,2); Ferrera, Marcello(1,2); Razzari, Luca(1); Peccianti, Marco(1,3); Pasquazi, Alessia(1,3); Litte, Brent E.(4); Chu, Sai T.(5); Moss, David J.(1,6); Morandotti, Roberto(1)Source: Nonlinear Photonics, NP 2014 Volume: Issue: DOI: 10.1364/np.2014.ntu4a.2 Published: July 21, 2014Abstract:By suppressing stimulated processes, we demonstrate the direct generation of orthogonally polarized photon pairs via spontaneous non-degenerate four-wave-mixing (FWM) between orthogonally polarized pumps in a CMOS-compatible micro-ring. Photon coincidences and optical parametric oscillation are measured. ? 2014 OSA.Accession Number: 20145200382644 -
Record 58 of
Title:Integrated frequency comb source of heralded single photons
Author(s):Reimer, Christian(1); Caspani, Lucia(1); Clerici, Matteo(1,2); Ferrera, Marcello(1,2); Kues, Michael(1); Peccianti, Marco(1,3); Pasquazi, Alessia(1,3); Razzari, Luca(1); Little, Brent E.(4); Chu, Sai T.(5); Moss, David J.(1,6); Morandotti, Roberto(1)Source: Optics Express Volume: 22 Issue: 6 DOI: 10.1364/OE.22.006535 Published: 41722Abstract:We report an integrated photon pair source based on a CMOScompatible microring resonator that generates multiple, simultaneous, and independent photon pairs at different wavelengths in a frequency comb compatible with fiber communication wavelength division multiplexing channels (200 GHz channel separation) and with a linewidth that is compatible with quantum memories (110 MHz). It operates in a self-locked pump configuration, avoiding the need for active stabilization, making it extremely robust even at very low power levels. ? 2014 Optical Society of America.Accession Number: 20141417539861 -
Record 59 of
Title:Simulation study on slant-to-vertical deviation in two dimensional TEC mapping over the ionosphere equatorial anomaly
Author(s):Yu, Tao(1,2); Mao, Tian(2); Wang, Yungang(2); Zeng, Zhongcao(2); Xia, Chunliang(1); Wu, Fenglei(3); Wang, Le(4)Source: Advances in Space Research Volume: 54 Issue: 4 DOI: 10.1016/j.asr.2014.04.015 Published: August 15, 2014Abstract:With the rapid increase of GPS/GNSS receivers being deployed and operated in China, real-time GPS data from nearly a thousand sites are available at the National Center for Space Weather, China Meteorology Administration. However, it is challenging to generate a high-quality regional total electron content (TEC) map with the traditional two-dimensional (2-D) retrieval scheme because a large horizontal gradient has been reported over east-south Asia due to the northern equatorial ionization anomaly. We developed an Ionosphere Data Assimilation Analysis System (IDAAS), which is described in this study, using an International Reference Ionosphere (IRI) model as the background and applying a Kalman filter for updated observations. The IDAAS can reconstruct a three-dimensional ionosphere with the GPS slant TEC. The inverse slant TEC correlates well with observations both for GPS sites involved in the reconstruction and sites that are not involved. Based on the IDAAS, simulations were performed to investigate the deviation relative to the slant-to-vertical conversion (STV). The results indicate that the relative deviation induced by slant-to-vertical conversion may be significant in certain instances, and the deviation varies from 0% to 40% when the elevation decreases from 90° to 15°, while the relative IDAAS deviation is much smaller and varies from -5% to 15% without an elevation dependence. Compared with 'true TEC' map derived from the model, there is large difference in STV TEC map but no obvious discrepancy in IDAAS map. Generally, the IDAAS TEC map is much closer to the "true TEC" than is STV TEC map is. It is suggested that three-dimensional inversion technique is necessary for GPS observations of low elevation at an equatorial anomaly region, wherein the high horizontal electron density gradient may produce significant slant-to-vertical deviations using the two-dimensional STV inversion method. ? 2014 COSPAR. Published by Elsevier Ltd. All rights reserved.Accession Number: 20142917941464 -
Record 60 of
Title:Burst-mode operation of a 650GHz mode locked laser based on a high order microring resonator
Author(s):Jin, Lin(1); Pasquazi, Alessia(2); Tsang, K.S.(3); Ho, Victor(1); Peccianti, Marco(2); Caspani, Lucia(4); Ferrera, Marcello(5); Pun, E.Y.B.(6); Wei, P.K.A.(3); Little, Brent E.(7); Moss, David J.(8); Morandotti, Roberto(4); Chu, Sai T.(1)Source: 2014 OptoElectronics and Communication Conference, OECC 2014 and Australian Conference on Optical Fibre Technology, ACOFT 2014 Volume: Issue: DOI: Published: 2014Abstract:We demonstrated a new regime of operation for ultrafast mode-locked lasers that we termed "burst-mode" modelocking. By exploiting an integrated 11th order micro-ring resonator, our scheme achieves stable operation resulting in a mode-locked train of pulses at 650 GHz with a burst mode envelope of 40 ps at 7.12 MHz. ? 2014 Engineers Australia.Accession Number: 20143918176644