- Selaus nimekkeen mukaan TUNICRIS-julkaisut

    • 0.6V threshold voltage thin film transistors with solution processable indium oxide (In2O3) Channel and Anodized High-κ Al2O3 Dielectric 

      Bhalerao,Sagar R.; Lupo,Donald; Zangiabadi,Amirali; Kymissis,Ioannis; Leppäniemi,Jaakko; Alastalo,Ari; Berger,Paul R. (01.07.2019)
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      Low-voltage operation and low processing temperature of metal oxide transistors remain a challenge. Commonly metal oxide transistors are fabricated at very high processing temperatures (above 500°C) and their operating ...
    • 1.3 μm InAs quantum dot semiconductor disk laser 

      Blokhin,S. A.; Bobrov,M. A.; Blokhin,A. A.; Kuzmenkov,A. G.; Vasil'Ev,A. P.; Maleev,N. A.; Dudelev,V. V.; Soboleva,K. K.; Sokolovskii,G. S.; Rantamäki,A.; Okhotnikov,O.; Ustinov,V. M. (23.08.2016)
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      Vertical-external-cavity surface-emitting lasers (VECSEL), or semiconductor disk lasers (SDL), are attractive laser source for a wide range of applications owing to unique possibility to combine high output power with an ...
    • 1.4 µm continuous-wave diamond Raman laser 

      Casula,Riccardo; Penttinen,Jussi-Pekka; Kemp,Alan J.; Guina,Mircea; Hastie,Jennifer E. (11.12.2017)
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      The longest wavelength (~1.4 µm) emitted by a diamond Raman laser pumped by a semiconductor disk laser (SDL) is reported. The output power of the intracavity-pumped Raman laser reached a maximum of 2.3 W with an optical ...
    • A 1.5-1.9-GHz all-digital tri-phasing transmitter with an integrated multilevel class-D power amplifier achieving 100-MHz RF bandwidth 

      Lemberg,Jerry; Martelius,Mikko; Roverato,Enrico; Antonov,Yury; Nieminen,Tero; Stadius,Kari; Anttila,Lauri; Valkama,Mikko; Kosunen,Marko; Ryynanen,Jussi (01.06.2019)
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      We present a prototype RF transmitter with an integrated multilevel class-D power amplifier (PA), implemented in 28-nm CMOS. The transmitter utilizes tri-phasing modulation, which combines three constant-envelope phase-modulated ...
    • 1180 nm GaInNAs quantum well based high power DBR laser diodes 

      Viheriälä,Jukka; Aho,Antti; Virtanen,Heikki; Koskinen,Mervi; Dumitrescu,Mihail; Guina,Mircea; Zediker,Mark S. (SPIE, 24.02.2017)
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      We report state-of-the-art results for 1180nm (narrow linewidth) laser diodes based on GaInNAs quantum wells and show results for ridge waveguide DBR laser diode including its reliability tests. Manuscript demonstrates 500 ...
    • A 122Mb/s Turbo decoder using a mid-range GPU 

      Xianjun,Jiao; Canfeng,Chen; Jääskeläinen,Pekka; Guzma,Vladimir; Berg,Heikki
      International Wireless Communications and Mobile Computing Conference (Institute of Electrical and Electronics Engineers IEEE, 2013)
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      Parallel implementations of Turbo decoding has been studied extensively. Traditionally, the number of parallel sub-decoders is limited to maintain acceptable code block error rate performance loss caused by the edge effect ...
    • 13.5 A 0.35-to-2.6GHz multilevel outphasing transmitter with a digital interpolating phase modulator enabling up to 400MHz instantaneous bandwidth 

      Kosunen,Marko; Lemberg,Jerry; Martelius,Mikko; Roverato,Enrico; Nieminen,Tero; Englund,Mikko; Stadius,Kari; Anttila,Lauri; Pallonen,Jorma; Valkama,Mikko; Ryynänen,Jussi (IEEE, 02.03.2017)
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      Advanced wireless radio standards set stringent requirements on the bandwidth, frequency range and reconfigurability of base-station transmitters. Recently, the outphasing concept has shown promise of wide bandwidth while ...
    • 1700 nm dispersion managed mode-locked bismuth fiber laser 

      Noronen,Teppo; Firstov,Sergei; Dianov,Evgeny; Okhotnikov,Oleg G. (21.04.2016)
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      We demonstrate the first 1.7 μm bismuth-doped fiber laser generating ultrashort pulses via passive mode-locking. Pulse operation has been achieved for both anomalous and normal dispersion of the laser cavity owing to ...
    • 1917 : en reseguide till ett sargat men okuvat Finland 

      Niemi,Marjaana; Villstrand,Nils Erik; Karonen,Petri (SVENSKA LITTERATURSÄLLSKAPET I FINLAND, 2017)
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    • 1D Convolutional Neural Networks and Applications - A Survey 

      Kiranyaz,Serkan; Avci,Onur; Abdeljaber,Osama; Ince,Turker; Gabbouj,Moncef; Inman,Daniel J. (04 / 2021)
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      During the last decade, Convolutional Neural Networks (CNNs) have become the de facto standard for various Computer Vision and Machine Learning operations. CNNs are feed-forward Artificial Neural Networks (ANNs) with ...
    • A 2-5.5 GHz Beamsteering Receiver IC with 4-Element Vivaldi Antenna Array 

      Zahra,Mahwish; Kempi,Ilia; Haarla,Jaakko; Antonov,Yury; Khonsari,Zahra; Miilunpalo,Toni; Ahmed,Nouman; Inkinen,Juha; Unnikrishnan,Vishnu; Lehtovuori,Anu; Viikari,Ville; Anttila,Lauri; Valkama,Mikko; Kosunen,Marko; Stadius,Kari; Ryynänen,Jussi (01.09.2020)
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      In this article, we present a four-element Vivaldi antenna array and beamsteering receiver IC for the fifth-generation mobile network (5G) new radio (NR). The implemented receiver utilizes a delay-based local-oscillator ...
    • 2-D Predictive Filters for Polynomial Signals With Applications to Wind Profiler Data 

      Laakom,Firas (URSI, 10 / 2019)
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      Polynomial predictors are known for their ability, in the absence of noise, to exactly predict a future value of a polynomial signal of a fixed order. One-dimensional filtering is a mature field and sophisticated filter design ...
    • The 2020 report of The Lancet Countdown on health and climate change : responding to converging crises 

      Watts,Nick; Amann,Markus; Arnell,Nigel; Ayeb-Karlsson,Sonja; Beagley,Jessica; Belesova,Kristine; Boykoff,Maxwell; Byass,Peter; Cai,Wenjia; Campbell-Lendrum,Diarmid; Capstick,Stuart; Chambers,Jonathan; Coleman,Samantha; Dalin,Carole; Daly,Meaghan; Dasandi,Niheer; Dasgupta,Shouro; Davies,Michael; Di Napoli,Claudia; Dominguez-Salas,Paula; Drummond,Paul; Dubrow,Robert; Ebi,Kristie L; Eckelman,Matthew; Ekins,Paul; Escobar,Luis E; Georgeson,Lucien; Golder,Su; Grace,Delia; Graham,Hilary; Haggar,Paul; Hamilton,Ian; Hartinger,Stella; Hess,Jeremy; Hsu,Shih-Che; Hughes,Nick; Jankin Mikhaylov,Slava; Jimenez,Marcia P; Kelman,Ilan; Kennard,Harry; Kiesewetter,Gregor; Kinney,Patrick L; Kjellstrom,Tord; Kniveton,Dominic; Lampard,Pete; Lemke,Bruno; Liu,Yang; Liu,Zhao; Lott,Melissa; Lowe,Rachel; Martinez-Urtaza,Jaime; Maslin,Mark; McAllister,Lucy; McGushin,Alice; McMichael,Celia; Milner,James; Moradi-Lakeh,Maziar; Morrissey,Karyn; Munzert,Simon; Murray,Kris; Neville,Tara; Nilsson,Maria; Odhiambo Sewe,Maquins; Oreszczyn,Tadj; Otto,Matthias; Owfi,Fereidoon; Pearman,Olivia; Pencheon,David; Quinn,Ruth; Rabbaniha,Mahnaz; Robinson,Elizabeth; Rocklöv,Joacim; Romanello,Marina; Semenza,Jan; Sherman,Jodi; Shi,Liuhua; Springmann,Marco; Tabatabaei,Meisam; Taylor,Jonathon; Triñanes,Joaquin; Shumake-Guillemot,Joy; Vu,Bryan; Wilkinson,Paul; Winning,Matthew; Gong,Peng; Montgomery,Hugh; Costello,Anthony (09.01.2021)
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    • 20th Inverse Days 2014, Tampere 9th-11th December 2014 : Abstracts 

      Åkerblom,Markku; Tampere University; Department of Mathematics; Research group: MAT Inverse Problems (Tampere University of Technology, Department of Mathematics, 2014)
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      Proceedings of the Inverse Days 2014 conference organized in Tampere 9th - 11th December 2014. This document contains the schedule of the conference, the list of participants and the abstracts of the talks given at the conference.
    • A 3 DOF piezohydraulic parallel micromanipulator 

      Kallio,P.; Lind,M.; Zhou,Q.; Koivo,H.N. (1998)
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      The paper presents a new parallel micromanipulator that is composed of three piezohydraulic actuation systems. The basic elements of the actuation system are a piezoelectric actuator, a bellows and hydraulic oil. The use ...
    • 3-Year Follow-Up of Radiation-Associated Changes in Diastolic Function by Speckle Tracking Echocardiography 

      Tuohinen,Suvi Sirkku; Skyttä,Tanja; Huhtala,Heini; Poutanen,Tuija; Virtanen,Vesa; Kellokumpu-Lehtinen,Pirkko Liisa; Raatikainen,Pekka (06 / 2021)
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      Background: Radiation therapy (RT) results in myocardial changes consisting of diffuse fibrosis, which may result in changes in diastolic function. Objectives: The aim of this study was to explore RT-associated changes in ...
    • A 30-dBm class-d power amplifier with On/Off logic for an integrated tri-phasing transmitter in 28-nm CMOS 

      Martelius,Mikko; Stadius,Kari; Lemberg,Jerry; Roverato,Enrico; Nieminen,Tero; Antonov,Yury; Anttila,Lauri; Valkama,Mikko; Kosunen,Marko; Ryynanen,Jussi (IEEE, 07.08.2018)
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      This paper presents an eight-unit class-D power amplifier (PA), implemented in 28-nm CMOS. The PA is designed to utilize tri-phasing modulation, which combines coarse-amplitude polar modulation with fine-resolution outphasing ...
    • A 30-GHz Switched-Capacitor Power Amplifier for 5G SoCs 

      Saleem,Ali Raza; Stadius,Kari; Kosunen,Marko; Anttila,Lauri; Valkama,Mikko; Ryynänen,Jussi (IEEE, 01.11.2020)
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      Switched-capacitor power amplifier has gained popularity within the radio frequency integrated circuit community, since it is CMOS compatible offering high integration density and good performance particularly in terms of ...
    • 31% European InGaP/GaAs/InGaNAs Solar Cells For Space Application 

      Campesato,Roberta; Tukiainen,Antti; Aho,Arto; Gori,Gabriele; Isoaho,Riku; Greco,Erminio; Guina,Mircea (EDP Sciences, 2017)
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      We report a triple junction InGaP/GaAs/InGaNAs solar cell with efficiency of ~31% at AM0, 25 °C fabricated using a combined molecular beam epitaxy (MBE) and metal-organic chemical vapour deposition (MOCVD) processes. The ...
    • 33 W continuous output power semiconductor disk laser emitting at 1275 nm 

      Leinonen,Tomi; Iakovlev,Vladimir; Sirbu,Alexei; Kapon,Eli; Guina,Mircea (20.03.2017)
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      We demonstrate a semiconductor disk laser emitting at 1275nm, employing a wafer fused AlInGaAs/InP-AlAs/GaAs gain mirror. A built-in Au-reflector was used to reflect the pump light not absorbed in a single pass through the ...