Recent Submissions

  • Magneto-photoconductivity of three dimensional topological insulator bismuth telluride 

    Cao, Bingchen; Eginligil, Mustafa; Yu, Ting (2018)
    Magnetic field dependence of the photocurrent in a 3D topological insulator is studied. Among the 3D topological insulators bismuth telluride has unique hexagonal warping and spin texture which has been studied by ...
  • Ultra-fast spinor switching in polariton condensates 

    Askitopoulos, Alexis; Ohadi, Hamid; Liew, Timothy Chi Hin; Hatzopoulos, Zaharias; Savvidis, Pavlos G.; Kavokin, Alexey V.; Lagoudakis, Pavlos G. (2014)
    We demonstrate a linear to circular polarization conversion mechanism of a confined polariton condensate created by an optical potential trap. This system features a high degree of circular polarization under linear ...
  • Quantum information with semiconductor nanostructures 

    Adrados, C.; Hivet, R.; Karr, J. P.; Romanelli, M.; Amo, A.; Liew, Timothy Chi Hin; Houdré, R.; Kavokin, A. V.; Pigeon, S.; Ciuti, C.; Carusotto, I.; Bramati, A.; Giacobino, Elisabeth (2011)
    Integrated optoelectronic devices based on exciton-polaritons are very promising for quantum information, since they allow quantum optical effects as well as spin control and spin switching. Moreover the quantum fluid ...
  • Photon and Polariton Condensates in Microcavities 

    Kammann, Elena; Ohadi, Hamid; Maragkou, Maria; Lagoudakis, Konstantinos G.; Liew, Timothy Chi Hin; Kavokin, Alexey V.; Lagoudakis, Pavlos G. (2012)
    We study thermalisation coherence and spin dynamics of photon and polariton Bose-Einstein condensates (BECs). We observe a Bose Einstein distribution, buildup of long-range order and spontaneous symmetry breaking.
  • Different carrier recombination processes in CsPbBr3 quantum dots and microcrystals 

    Qian, Cheng; Yin, Tingting; Yan, Jiaxu; Shen, Ze Xiang (2017)
    Good understanding of carrier generation and recombination is crucial for applications in LEDs, lasers, single photon sources and so on. In this work, we studied and compared charge generation and recombination processes ...
  • Laser Profiling for the Back-Side Fault Attacks: With a Practical Laser Skip Instruction Attack on AES 

    Breier, Jakub; Jap, Dirmanto; Chen, Chien-Ning (2015)
    Laser fault injection is one of the strongest fault injection techniques. It offers a precise area positioning and a precise timing, allowing a high repeatability of experiments. In our paper we examine possibilities of ...
  • Anomalous Spectral Characteristics of Ultrathin sub-nm Colloidal CdSe Nanoplatelets 

    Bose, Sumanta; Delikanli, Savas; Yeltik, Aydan; Sharma, Manoj; Erdem, Onur; Dang, Cuong; Fan, Weijun; Zhang, Dao Hua; Demir, Hilmi Volkan (2017)
    We demonstrate high quantum yield broad photoluminescence emission of ultrathin sub-nanometer CdSe nanoplatelets (two-monolayer). They also exhibit polarization-characterized lateral size dependent anomalous heavy hole and ...
  • Supervised and unsupervised machine learning for side-channel based Trojan detection 

    Jap, Dirmanto; He, Wei; Bhasin, Shivam (2016)
    Hardware Trojan (HT) has recently drawn much attention in both industry and academia due to the global outsourcing trend in semiconductor manufacturing, where a malicious logic can be inserted into the security critical ...
  • On LCD Codes and Lattices 

    Hou, Xiaolu; Oggier, Frédérique (2016)
    LCD (linear complimentary dual) codes are linear codes that trivially intersect their duals. We address the question of an equivalent concept for lattices. We observe basic properties of the intersection of a lattice with ...
  • The Other Side of The Coin: Analyzing Software Encoding Schemes Against Fault Injection Attacks 

    Breier, Jakub; Jap, Dirmanto; Bhasin, Shivam (2016)
    The versatility and cost of embedded systems have made it ubiquitous. Such wide-application exposes an embedded system to a variety of physical threats like side-channel attacks (SCA) and fault attacks (FA). Recently, a ...
  • Testing Feasibility of Back-Side Laser Fault Injection on a Microcontroller 

    Breier, Jakub; Jap, Dirmanto (2015)
    Laser fault attack platform constitutes a powerful tool for a precise injection of faults into the device, allowing an attacker to carefully adjust timing and position on the chip. On the other hand, the cost of such ...
  • 100 THz broadband optical switching with plasmonic metamaterial 

    Nalla, Venkatram; Vezzoli, Stefano; Valente, João; Soci, Cesare; Sun, Handong; Zheludev, Nikolay (2015)
    The development of coherent optical networks and processing are catalysing increasing attention as solutions to accelerate the data transfer speed and data processing. Conventional technology in coherent optical networks ...
  • 100 THz bandwidth plasmonic metamaterial switch 

    Nalla, Venkatram; Valente, João; Vezzoli, Stefano; Soci, Cesare; Handong, Sun; Zheludev, Nikolay (2015)
    The development of coherent optical networks and processing are catalysing increasing attention as solutions to accelerate the data transfer speed and data processing. Conventional technology in coherent optical networks ...
  • On Algebraic Manipulation Detection Codes from Linear Codes and their Application to Storage Systems 

    Harshan, Jagadeesh; Oggier, Frederique (2015-10-11)
    Algebraic Manipulation Detection (AMD) codes form a cryptographic primitive designed to detect data corruption of the form of an additive operation in an Abelian group. In this paper, we discuss the applicability of AMD ...
  • Hitting Sets for Low-Degree Polynomials with Optimal Density 

    Guruswami, Venkatesan; Xing, Chaoping (2014-06)
    We give a length-efficient puncturing of Reed-Muller codes which preserves its distance properties. Formally, for the Reed-Muller code encoding n-variate degree-d polynomials over Fq with q ≳ d/δ, we present an explicit ...
  • TAMeBS: A sensitive bisulfite-sequencing read mapping tool for DNA methylation analysis 

    Sun, Ruimin; Tian, Ye; Chen, Xin (2014-11)
    Cytosine methylation plays an important role in many biological regulation processes. The current gold-standard method for analyzing cytosine methylation is based on sodium bisulfite treatment and high-throughput sequencing ...
  • 100 THz optical switching with plasmonic metamaterial 

    Venkatram, Nalla; Stefano, Vezzol; João, Valente; Sun, Handong; Nikolay, Zheludev (2015-06-21)
    Using femtosecond laser with variable pulse duration we probe the limits of switching that exploits coherent absorption in nanostructured gold films. Switching contrast ratios of 7:1 with a modulation bandwidth exceeding ...
  • Lattice Encoding of Cyclic Codes from Skew-polynomial Rings 

    Ducoat, Jérôme; Oggier, Frédérique (2015)
    We propose a construction of lattices from cyclic codes from skew-polynomial rings. This construction may be seen as a variation of Construction A of lattices from linear codes, obtained from quotients of orders in cyclic ...
  • On the Design of Storage Orbit Codes 

    Liu, Shiqiu; Oggier, Frédérique (2015)
    We propose the use of orbit codes to design storage codesthat is, subspace codes obtained from orbits of the action of subgroups of GLn(Fq) on m-dimensional subspaces of Fnq. We translate the storage code parameters into ...
  • Rank weight hierarchy of some classes of cyclic codes 

    Ducoat, Jérôme; Oggier, Frédérique (2014)
    We study the rank weight hierarchy, thus in particular the rank metric, of cyclic codes over the finite field Fqm, q a prime power, m ≤ 2. We establish the rank weight hierarchy for [n, n - 1] cyclic codes and characterize ...

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