DOCSLIB.ORG

Artemis Artemis

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Artemis Artemis LASER SCIENCE AND DEVELOPMENT Artemis Artemis Monochromatised XUV beamline 51 for ultrafast time-resolved ARPES E. Springate, C. Cacho, E. Turcu, C. Froud, The short pulses of coherent XUV S.G. Hook (CLF, STFC, Rutherford Appleton radiation produced through high Laboratory, UK) Layout of the XUV beamline including the harmonic generation have enabled the Harmonic generation chamber, the L. Poletto, P. Villoresi, F. Frassetto, S. Bonora (LUXOR, Padova, Italy) study of ultrafast electron dynamics in monochromator chamber to select the photon atomic systems and simple molecules. energy, the recombination chamber for pump- W.A. Bryan, G.R.A.J. Nemeth probe experiment and the experimental (Swansea University, UK) The Artemis facility now aims to exploit chamber for time resolved ARPES. A. Cavalleri, J. Petersen, N. Dean these XUV pulses to investigate ultrafast (University of Oxford, UK) dynamics in experiments spanning gas- S. Dhesi phase chemistry of polyatomic molecules (Diamond, UK) A specially designed monochromator and condensed-matter physics of complex allows us to select a single harmonic and C. Cacho materials. [email protected] preserve also the short pulse duration (10 - 30 fs). We have shown that the We have built an XUV beamline that beamline can achieve 250 meV energy delivers short pulses of monochromatised resolution and 30 fs temporal resolution, XUV, produced through high harmonic enabling us to carry out first measurements generation, to an end-station optimized for of angle- time- resolved photoemission photo-emission experiments on condensed with XUV pulses. matter. Spin and angle resolved photoemission with fs laser 52 source: calibration of spin detector C. Cacho (CLF, STFC, Rutherford Appleton Angle resolved photoemission is a very systems with large spin-orbit coupling Laboratory, UK) powerful technique to explore the [1-2]. The intrinsic low efficiency of the C.M. Cacho, S. Vlaic, M. Malvestuto, electronic structure of materials. Over the electron spin detection makes these B. Ressel, and F. Parmigiani (Sincrotrone Trieste, Trieste, Italy) past three decades this spectroscopic experiments very challenging. This is why, technique has well matured partly due to using a laser source with a novel electron W. Bryan, G.R.A.J. Nemeth (Swansea University, UK) the development of intense synchrotron analyzer (electron time-of-flight) is a real E.A. Seddon (Manchester University, UK) radiation and bright fs-laser sources. step forward for this type of experiment Measuring the spin as well as the emission particularly in terms of acquisition time C. Cacho [email protected] angle of the photoelectron is particularly and resolution. Furthermore by combining interesting to study the magnetic the ToF-Spin analyzer to the Artemis properties of ferromagnetic systems or facility, one can study the electron spin dynamic in the sub 10-fs time domain which is of great interest to explore the switching mechanisms in ferromagnetic systems for spintronic devices. 1 J.-H. Park et al., Nature, 392, 794 (1998). 2 K. Sakamoto et al., Phys. Rev. Lett.,102, 096805 (2009) Top view of the experimental setup in normal polarimeter where they are spin resolved. The emission geometry. The photoelectrons travel arrival time of the electrons at each detector through the drift tube up to the Mott is measured and converted to kinetic energy. CENTRAL LASER FACILITY Annual Report 2009 - 2010 33 LASER SCIENCE AND DEVELOPMENT Artemis Few-cycle carrier-envelope-phase controlled laser pulses 53 for time resolved science at the Artemis facility W.A. Bryan, G.R.A.J. Nemeth When the duration of a laser pulse reaches of the energy can be focused into a hollow (Swansea University, UK and CLF Facility, STFC the few-cycle level, the phase of the laser fibre to generate few-cycle pulses. Recent Rutherford Appleton Laboratory, UK) electric field relative to the pulse envelope improvements have reduced the R.B. King (Queen’s University Belfast, UK) (the carrier-envelope phase, CEP) can have pulselength to 7 fs, with 0.5 mJ per pulse. a significant effect on the physics of the The long-term stability of the CEP C.M. Cacho, I.C.E. Turcu and E. Springate (CLF, STFC Rutherford Appleton Laboratory, UK) interaction. Examples of this are the stabilisation is 325 mrad rms for over five generation of isolated attosecond pulses hours. E. Springate, [email protected] [1] and the control of electron localisation during molecular dissociation [2], both of 1. A. Baltuska et al, “ Attosecond control which require few-cycle pulses with stable of electronic processes by intense light CEP. fields”, Nature 421, 611 (2003). 2. M. F. Kling et al, “Control of electron The Artemis facility is constructed around a localization in molecular dissociation”, CEP stabilised laser system with an output Science 312 246 (2006). of 780 nm, 30 fs, 14 mJ pulse at 1 kHz. Part FROG measurement of 7 fs, 0.5 mJ CEP control over five hours with pulses produced in the hollow fibre 2 mJ/pulse and 325 mrad rms system showing retrieved temporal stability. Blue line: programmed intensity and phase. The FROG error target phase. Red line: measured was 0.006. phase. 34 CENTRAL LASER FACILITY Annual Report 2009 - 2010 LASER SCIENCE AND DEVELOPMENT Astra Astra Vibration in Gemini and engineering 54 modifications (interim report) S. Blake, R. Pattathil, P.S. Foster Intermittent ground borne vibration The full report details the vibration scan (CLF, STFC, Rutherford Appleton Laboratory, UK) delayed and plagued early experiments in results, changes to the hardware and initial H.Huang Astra Gemini. The vibration manifested conclusions. (Diamond, UK) itself in an elliptical or figure of eight S. Blake, movement of the spot at the interaction [email protected] point. After analysis the source was traced back to the main magnet power supply of the neighbouring ISIS facility. The main source at 50 Hz was amplified by the support structure, multi component breadboard and key optical mounts increasing the amplitude of the vibration at each stage. Large structural changes were carried out to the main optics table and associated framework, parabola chamber and the key optical mounts. The initial testing post upgrade is positive. The image The new structure and the location of on the right shows the main optics table the four sensors. (breadboard), supporting structure which spans the trench leading to ISIS and the change to the key optical mounts. Temporal and spatial overlap monitoring 55 of the dual-beam layout in Astra-Gemini TA3 N. Booth, D. R. Symes, P. S. Foster, J. Martin, The Astra-Gemini target area is now up and To monitor the spatial overlap, leakage P. P. Rajeev, D. Neely running for dual beam experimental from each of the beams is taken, then (CLF, STFC, Rutherford Appleton Laboratory, UK) operations. It is now essential to have combined, focussed, and split to a near- N. Booth, spatial and temporal overlap of the two field and a far-field camera. The near-field [email protected] beams at the target position. Two extra will be used to indicate the temporal diagnostics have been added to the target overlap of the two beams and the jitter in area to monitor these overlaps on a the spatial alignment. The far-field will shot-to-shot basis. monitor the spatial stability of the overlap of the two beams. A cross-correlator diagnostic has been installed in order to monitor the temporal overlap. Leakage is taken from each of the beams which are both split and overlapped with two BBO crystals to generate two cross correlation traces, one with a time window of ~ 6 ps and one with a > 6 ps window. Schematic diagram of the beam arrangements in Astra-Gemini TA3. Red indicates the main beamlines and pink indicates leakage beams. CENTRAL LASER FACILITY Annual Report 2009 - 2010 35 LASER SCIENCE AND DEVELOPMENT Astra Upgrade of Astra amplifier 3 and the Astra interlock system 56 C. Hooker, B. Costello, S. Hawkes, Last year a significant C. John, B. Landowski, A. Tylee upgrade was carried out to (CLF, STFC, Rutherford Appleton Laboratory, UK) the old Astra amplifier 3, C. Hooker, which has improved its [email protected] performance and removed one of the least reliable commercial lasers from the system. The old Macholite laser was replaced with four Quanta-Ray PRO-350 Nd:YAG lasers, and a new water cooling system installed. The layout of the amplifier was redesigned for better Schematic of the new layout accessibility: before the changes, the beam for Astra Amplifier 3. expansion tubes were on a raised framework above the amplifier, but now Joules at 800 nm. During the same period, everything is on the same level. The new the old PC-based interlocks were replaced layout is shown in the diagram. The with an up-to-date system based on PLC performance of the amplifier is better than technology, giving improved safety and full before, with a typical output of 1.2 to 1.3 compatibility with other areas of the CLF. Improved post-experiment data analysis at Astra Gemini 57 V. Marshall, D. Symes We have further improved the gathering traces are averaged and displayed as a (CLF, STFC, Rutherford Appleton Laboratory, UK) and analysis of diagnostic data over the Scalable Vector Graphics (SVG) images. The V .Marshall, course of an experiment. In conjunction laser operator can subsequently view this [email protected] with the Principal Investigator, we identify data and, for image data streams such as the laser parameters (singular values, trace far-field profiles and FROG traces, select images and camera images) which are key the image which represents a typical image to that experiment and make them for that day.
Load more

Recommended publications
  • 7 Upgrade to the Vulcan Laser System to Support the TAW Upgrade
    LASER SCIENCE AND DEVELOPMENT I Vulcan 7 Upgrade to the Vulcan laser system to support the TAW upgrade Contact [email protected] B. T. Parry, T. B. Winstone, P. N. Anderson, A. J. Frackiewicz, M. Galimberti, S. Hancock, C. Hernandez-Gomez, A. K. Kidd, M. M. Notley, M. Read and C. Wise Central Laser Facility, STFC, Rutherford Appleton Laboratory, HSIC, Didcot, Oxon OX11 0QX, UK Introduction chains. One of the rod amplifier beam lines is split The Vulcan laser facility has recently been upgraded to into two to form beams 7 and 8, the other is split into deliver an additional short pulse beam to Target Area beams 1-6. Beams 7 and 8 are normally used as short West (TAW) [1]. This new beamline is capable of pulse (CPA) beamlines. operating in the same mode as the previously existing Modelling showed that the extra amplification needed one, at energies up to 100 J in 1 ps. It also allows the to deliver the increased energy could be carried out at laser to reach new, previously inaccessible regimes, smaller beam diameter while still keeping the B-integral with the capability to deliver up to 500 J in pulses of below three, the limit for what was acceptable for a 10 ps or longer (100ps max). 10 ps pulse. This meant that rod amplifiers, rather than The increase in the delivered energy was made possible large, costly disk amplifiers, could be used. An by the use of dielectric gratings for this new 10 ps additional 45 mm diameter rod amplifier was installed beamline.
    [Show full text]
  • Nd Lu Caf2 for High-Energy Lasers Simone Normani
    Nd Lu CaF2 for high-energy lasers Simone Normani To cite this version: Simone Normani. Nd Lu CaF2 for high-energy lasers. Physics [physics]. Normandie Université, 2017. English. NNT : 2017NORMC230. tel-01689866 HAL Id: tel-01689866 https://tel.archives-ouvertes.fr/tel-01689866 Submitted on 22 Jan 2018 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. THESE Pour obtenir le diplôme de doctorat Physique Préparée au sein de l’Université de Caen Normandie Nd:Lu:CaF2 for High-Energy Lasers Étude de Cristaux de CaF2:Nd:Lu pour Lasers de Haute Énergie Présentée et soutenue par Simone NORMANI Thèse soutenue publiquement le 19 octobre 2017 devant le jury composé de M. Patrice CAMY Professeur, Université de Caen Normandie Directeur de thèse M. Alain BRAUD MCF HDR, Université de Caen Normandie Codirecteur de thèse M. Jean-Luc ADAM Directeur de Recherche, CNRS Rapporteur Mme. Patricia SEGONDS Professeur, Université de Grenoble Rapporteur M. Jean-Paul GOOSSENS Ingénieur, CEA Examinateur M. Maurizio FERRARI Directeur de Recherche, CNR-IFN Examinateur Thèse dirigée par Patrice CAMY et Alain BRAUD, laboratoire CIMAP Université de Caen Normandie Nd:Lu:CaF2 for High-Energy Lasers Thesis for the Ph.D.
    [Show full text]
  • Advanced Approaches to High Intensity Laser-Driven Ion Acceleration
    Advanced Approaches to High Intensity Laser-Driven Ion Acceleration Andreas Henig M¨unchen2010 Advanced Approaches to High Intensity Laser-Driven Ion Acceleration Andreas Henig Dissertation an der Fakult¨atf¨urPhysik der Ludwig{Maximilians{Universit¨at M¨unchen vorgelegt von Andreas Henig aus W¨urzburg M¨unchen, den 18. M¨arz2010 Erstgutachter: Prof. Dr. Dietrich Habs Zweitgutachter: Prof. Dr. Toshiki Tajima Tag der m¨undlichen Pr¨ufung:26. April 2010 Contents Contentsv List of Figures ix Abstract xiii Zusammenfassung xv 1 Introduction1 1.1 History and Previous Achievements...................1 1.2 Envisioned Applications.........................3 1.3 Thesis Outline...............................5 2 Theoretical Background9 2.1 Ionization.................................9 2.2 Relativistic Single Electron Dynamics.................. 14 2.2.1 Electron Trajectory in a Linearly Polarized Plane Wave.... 15 2.2.2 Electron Trajectory in a Circularly Polarized Plane Wave... 17 2.2.3 Electron Ejection from a Focussed Laser Beam......... 18 2.3 Laser Propagation in a Plasma..................... 18 2.4 Laser Absorption in Overdense Plasmas................. 20 2.4.1 Collisional Absorption...................... 20 2.4.2 Collisionless Absorption..................... 21 2.5 Ion Acceleration.............................. 22 2.5.1 Target Normal Sheath Acceleration (TNSA).......... 22 2.5.2 Shock Acceleration........................ 26 2.5.3 Radiation Pressure Acceleration / Light Sail / Laser Piston. 27 3 Experimental Methods I - High Intensity Laser Systems 33 3.1 Fundamentals of Ultrashort High Intensity Pulse Generation..... 33 vi CONTENTS 3.1.1 The Concept of Mode-Locking.................. 33 3.1.2 Time-Bandwidth Product.................... 37 3.1.3 Chirped Pulse Amplification................... 39 3.1.4 Optical Parametric Amplification (OPA)............ 40 3.2 Laser Systems Utilized for Ion Acceleration Studies.........
    [Show full text]
  • Proton Beams Generated by Ultrashort-Pulse Lasers Will Help
    S&TR December 2003 Proton-Beam Experiments 11 Proton beams ROTONS, the positively charged, Psubatomic particles discovered by Lord Rutherford nearly 100 years ago, are still surprising scientists. Lawrence generated by Livermore researchers are discovering that proton beams created by powerful, ultrashort pulses of laser light can be used to create and even diagnose plasmas, the ultrashort-pulse superhot state of matter that exists in the cores of stars and in detonating nuclear weapons. The proton-beam experiments promise new techniques for maintaining lasers will help the nationʼs nuclear arsenal and for better understanding how stars function. The proton beams used in the Laboratoryʼs experiments are produced advance our by pulses of laser light lasting only about 100 femtoseconds (a femtosecond is 10–15 seconds, or one-quadrillionth of a second) and having a brightness, or understanding of irradiance, up to 5 × 1020 watts per square centimeter. When such fleeting pulses are focused onto thin foil targets, as many as 100 billion protons are emitted, with plasmas. energies up to 25 megaelectronvolts. The protons come from a spot on the foil about 200 micrometers in diameter, and the beamʼs duration is a few times longer than the laser pulse. The highest-energy protons diverge 1 to 2 degrees from the perpendicular, while the lowest-energy protons form a cone about 20 degrees from perpendicular. Funded by the Laboratory Directed Research and Development Program, the Livermore experiments are led by physicists Pravesh Patel and Andrew Mackinnon. Patel, who works in the Laboratoryʼs Physics and Advanced Lawrence Livermore National Laboratory 12 Proton-Beam Experiments S&TR December 2003 Technologies Directorate, is researching per gram) that exist in stars.
    [Show full text]
  • The Vulcan 10 PW Project 7
    LASER SCIENCE AND DEVELOPMENT I Vulcan The Vulcan 10 PW project 7 Contact [email protected] C. Hernandez-Gomez, S. P. Blake, O. Chekhlov, R. J. Clarke, A. M. Dunne, M. Galimberti, S. Hancock, P. Holligan, A. Lyachev, P. Matousek, I. O. Musgrave, D. Neely, P. A. Norreys, I. Ross, Y. Tang, T. B. Winstone, B. E. Wyborn and J. Collier Central Laser Facility, STFC, Rutherford Appleton Laboratory, HSIC, Didcot, Oxfordshire, OX11 0QX, UK Introduction This projects aim is to upgrade the Vulcan high power laser located at the Central Laser Facility (CLF), to beyond the 10 PW power level (1016 W) and provide focused intensities of greater than 1023 Wcm-2 to its international user community [1]. The project was divided in two phases. Phase 1 of 2 year duration, started in December 2006. A proposal for phase 2 has been submitted and reviewed. The start date of phase 2 is still under discussions. We report here on the overall progress made during the first phase. There were essentially three key areas to address as part of phase 1: • A novel “front end” system has been developed for Figure 1. Area photograph of the 10 PW Front End. the overall project and its performance has been verified with respect to key indicators such as wavelength, energy, bandwidth, pulselength, develop this high (150 nm) bandwidth version and the contrast etc. overall design is now based on this approach. • There has been a significant reduction in the risk associated with several key technical elements of the The 910 nm seed currently generated with the chirped project, particularly the large aperture diffraction scheme has a bandwidth of 165 nm and energy of gratings and laser amplifiers Several outstanding 40 µJ per pulse.
    [Show full text]
  • A New Interlock System for the Vulcan Laser
    Laser Science and Development – Instrumentation A new interlock system for the Vulcan laser C J Reason, W J Lester, P Holligan, D A Pepler, R W W Wyatt Central Laser Facility, CCLRC Rutherford Appleton Laboratory, Chilton, Didcot, Oxon., OX11 0QX, UK Main contact email address: [email protected] Introduction architecture allows the rest of the system to continue providing safety functionality even when a room is ‘turned The provision of safety interlocks in the CLF has developed off’ (e.g. lost power). through stages, starting with a hardwired system, through to a computer system, ‘Cerberus’1) using Arcnet and written in Cerberus Borland Turbo Pascal V 3 running under DOS, to Layout display Door / room displays ‘Cerberus’2) – rewritten as a computer system using Ethernet and written in Borland Turbo Pascal V 7 running under DOS. This has had to be replaced for a number of reasons including Cerberus Computer Video splitter • Much of the hardware is no longer available (e.g. Ethernet network door displays, Amplicon IO cards etc). PLC system Digital signals • The computers with ISA slots are no longer easily available. Safety PLC system • DOS and Borland Turbo Pascal are no longer Laser or target area Next room supported. Argus • The limits on code and data of 64 Kbytes were preventing necessary changes to the system. Figure 1. The system architecture. Also a new international standard IEC 61508 - Functional Safety for E, E, EP (Electrical / Electronic / Electronic The Argus PLC system 3) Programmable) systems has been published. It is This was designed from the lifecycle developed from IEC recommended (but not mandatory) that safety systems should 61508.
    [Show full text]
  • Review of Laser Diagnostics at the Vulcan Laser Facility
    High Power Laser Science and Engineering, (2015), Vol. 3, e26, 10 pages. © The Author(s) 2015. The online version of this article is published within an Open Access environment subject to the conditions of the Creative Commons Attribution licence <http://creativecommons.org/licenses/by/3.0/>. doi:10.1017/hpl.2015.27 Review of laser diagnostics at the Vulcan laser facility Ian Musgrave, Marco Galimberti, Alexis Boyle, Cristina Hernandez-Gomez, Andrew Kidd, Bryn Parry, Dave Pepler, Trevor Winstone, and John Collier Central Laser Facility, Science and Technology Facilities Council, RAL, Didcot, Oxfordshire OX 11 0QX, UK (Received 1 May 2015; revised 6 July 2015; accepted 31 July 2015) Abstract In this paper we review the provision of the laser diagnostics that are installed on the Vulcan laser facility. We will present strategies for dealing with the energy of high energy systems and with ways of handling the beam sizes of the lasers. We present data captured during typical experimental campaigns to demonstrate their reliability and variation in shot to shot values. Keywords: calorimeter; high power laser; laser diagnostics; pulse energy 1. Introduction Offner¨ stretcher. Following this are three further stages of OPCPA to achieve >60 mJ of energy. These pulses are The Vulcan laser facility of the Central Laser Facility is then amplified in a mixed silicate and phosphate glass rod located in the UK. It is an open access laser facility operated amplifier chain before final amplification in a phosphate ostensibly for the UK academic community for the purposes disc chain. The pulses are finally compressed before being of studying laser–matter interactions[1–3].
    [Show full text]
  • A History of High-Power Laser Research and Development in the United Kingdom
    High Power Laser Science and Engineering, (2021), Vol. 9, e18, 86 pages. doi:10.1017/hpl.2021.5 REVIEW A history of high-power laser research and development in the United Kingdom Colin N. Danson1,2,3, Malcolm White4,5,6, John R. M. Barr7, Thomas Bett8, Peter Blyth9,10,11,12, David Bowley13, Ceri Brenner14, Robert J. Collins15, Neal Croxford16, A. E. Bucker Dangor17, Laurence Devereux18, Peter E. Dyer19, Anthony Dymoke-Bradshaw20, Christopher B. Edwards1,14, Paul Ewart21, Allister I. Ferguson22, John M. Girkin23, Denis R. Hall24, David C. Hanna25, Wayne Harris26, David I. Hillier1, Christopher J. Hooker14, Simon M. Hooker21, Nicholas Hopps1,17, Janet Hull27, David Hunt8, Dino A. Jaroszynski28, Mark Kempenaars29, Helmut Kessler30, Sir Peter L. Knight17, Steve Knight31, Adrian Knowles32, Ciaran L. S. Lewis33, Ken S. Lipton34, Abby Littlechild35, John Littlechild35, Peter Maggs36, Graeme P. A. Malcolm OBE37, Stuart P. D. Mangles17, William Martin38, Paul McKenna28, Richard O. Moore1, Clive Morrison39, Zulfikar Najmudin17, David Neely14,28, Geoff H. C. New17, Michael J. Norman8, Ted Paine31, Anthony W. Parker14, Rory R. Penman1, Geoff J. Pert40, Chris Pietraszewski41, Andrew Randewich1, Nadeem H. Rizvi42, Nigel Seddon MBE43, Zheng-Ming Sheng28,44, David Slater45, Roland A. Smith17, Christopher Spindloe14, Roy Taylor17, Gary Thomas46, John W. G. Tisch17, Justin S. Wark2,21, Colin Webb21, S. Mark Wiggins28, Dave Willford47, and Trevor Winstone14 1AWE Aldermaston, Reading, UK 2Oxford Centre for High Energy Density Science, Department of Physics,
    [Show full text]
  • Nobel Lecture, December 8, 2018 by Gérard Mourou University of Michigan, Ann Arbor, MI, USA & École Polytechnique, Palaiseau, France
    96 Extreme Light Physics and Application Nobel Lecture, December 8, 2018 by Gérard Mourou University of Michigan, Ann Arbor, MI, USA & École Polytechnique, Palaiseau, France. I. INTRODUCTION The advent of ultraintense laser pulses generated by the technique of chirped pulse amplifcation (CPA), along with the development of high-fuence laser materials has opened up entirely new felds of optics. A CPA laser exhibits stunning capabilities. It can generate the largest feld, the largest pressure, the highest temperature and accelerating feld, mak- ing it a universal source of high energy particles and radiation. CPA technology produces a wide range of intensities extending from 1014 to 1025 W/cm 2. In the lower part of this range, the intensity regimes of 1014 to 1017 have applications that include micromachining, which can be performed on material regardless of its nature, i.e. ceramic, metal, biologi- cal tissue, cornea, etc. Extremely clean cuts of minimal roughness even at the atomic scale are produced. This attractive property led us to applica- tions in ophthalmic procedures like refractive surgery, cataract surgery, corneal transplants and glaucoma treatment. Today, a million patients a year are benefting from femtosecond interventions. In science, in the same intensity level, CPA makes possible to reach the attosecond frontier, ofering a formidable tool to time resolved fundamental electronic pro- cesses. Gérard Mourou Lecture 97 For intensities >1018 W/cm 2 laser-matter interaction becomes strongly dominated by the relativistic character of the electron. In contrast to the nonrelativistic regime, the laser feld moves matter more efectively, including motion in the direction of laser propagation, nonlinear modula- tion and harmonic generation, leading to high energy particle and radia- tion production.
    [Show full text]
  • Generation of High-Contrast, Terawatt to Petawatt OPCPA Laser Pulses
    Generation of High-Contrast, Terawatt to Petawatt OPCPA Laser Pulses NICHOLASSTUART Department of Physics Quantum Optics and Laser Science Group Imperial College London Submitted in partial fulfilment of the requirements for the degree of Doctor of Philosophy of Imperial College London and for the Diploma of Imperial College. September 2016 All of physics is either impossible or trivial. It is impossible until you understand it, and then it becomes trivial. — Ernest Rutherford DECLARATION I hereby certify that the material of this thesis, which I now submit for the award of Doc- tor of Philosophy of Imperial College London, is entirely my own work unless otherwise cited or acknowledged within the body of the text. COPYRIGHT The copyright of this thesis rests with the author and is made available under a Creative Commons Attribution Non - Commercial No Derivatives licence. Researchers are free to copy, distribute or transmit the thesis on the condition that they attribute it, that they do not use it for commercial purposes and that they do not alter, transf orm or build upon it. For any reuse or redistribution, researchers must make clear to others the licence terms of this work NICHOLAS STUART Nicholas Stuart: Generation of High-Contrast, Terawatt to Petawatt OPCPA Laser Pulses, © September 2016 ABSTRACT Laser-matter experiments using >1018 W cm−2 focused light intensities from terawatt to petawatt peak-power laser systems are highly sensitive to the optical noise sources that are generated and amplified in conjunction with the primary high-power laser pulse. This limits the temporal intensity contrast, the signal to noise of the primary pulse intensity in time.
    [Show full text]
  • Basic Science Connections Between OMEGA / OMEGA EP and HIPER Risk Reduction
    Basic science connections between OMEGA / OMEGA EP and HIPER risk reduction Prof. Peter Norreys Individual Merit Fellow Science & Technology Facilities Council Rutherford Appleton Laboratory, UK Blackett Laboratory, Imperial College London [email protected] www.clf.rl.ac.uk www.hiper-laser.org The fusion era is dawning … • Demonstration of net energy production from laser fusion predicted within ~ 3 years on the US National Ignition Facility • This is a fundamental step-change in our field • Clear implications for our science and energy programmes • A strategic way forward in Europe is now established NIF European Consortium • Funding Agency involvement by 9 partners – STFC (UK) – CEA, CNRS and CRA (France) – MSMT (Czech Republic) – GSRT (Greece) – MEC and CAM (through UPM) (Spain) – ENEA and CNR (Italy) • Institutional involvement by 17 other partners – IST Lisbon (Portugal) – CNSIM (Italy) – TEI, TUC (Greece) – IOP-PALS (Czech Republic) – IPPLM (Poland) – FVB, FSU Jena, GSI, TUD (Germany) – Lebedev Physical Institute, (Russia) Institute of Applied Physics-RAS – Imperial College London, (UK) Universities of York, Oxford, Strathclyde, Queens Belfast Next step (after fusion ignition) HiPER: Top-level goals: • Fully capitalise on the science of extreme conditions • Credible path for future exploitation of laser fusion energy Defining features of HiPER: • Higher repetition rate [new technology needed] • Reduced tolerances on laser, target specifications • International, collaborative approach Signing Ceremony The HiPER Consortium
    [Show full text]
  • Insight Manufacturers, Publishers and Suppliers by Product Category
    Manufacturers, Publishers and Suppliers by Product Category 2/15/2021 10/100 Hubs & Switch ASANTE TECHNOLOGIES CHECKPOINT SYSTEMS, INC. DYNEX PRODUCTS HAWKING TECHNOLOGY MILESTONE SYSTEMS A/S ASUS CIENA EATON HEWLETT PACKARD ENTERPRISE 1VISION SOFTWARE ATEN TECHNOLOGY CISCO PRESS EDGECORE HIKVISION DIGITAL TECHNOLOGY CO. LT 3COM ATLAS SOUND CISCO SYSTEMS EDGEWATER NETWORKS INC Hirschmann 4XEM CORP. ATLONA CITRIX EDIMAX HITACHI AB DISTRIBUTING AUDIOCODES, INC. CLEAR CUBE EKTRON HITACHI DATA SYSTEMS ABLENET INC AUDIOVOX CNET TECHNOLOGY EMTEC HOWARD MEDICAL ACCELL AUTOMAP CODE GREEN NETWORKS ENDACE USA HP ACCELLION AUTOMATION INTEGRATED LLC CODI INC ENET COMPONENTS HP INC ACTI CORPORATION AVAGOTECH TECHNOLOGIES COMMAND COMMUNICATIONS ENET SOLUTIONS INC HYPERCOM ADAPTEC AVAYA COMMUNICATION DEVICES INC. ENGENIUS IBM ADC TELECOMMUNICATIONS AVOCENT‐EMERSON COMNET ENTERASYS NETWORKS IMC NETWORKS ADDERTECHNOLOGY AXIOM MEMORY COMPREHENSIVE CABLE EQUINOX SYSTEMS IMS‐DELL ADDON NETWORKS AXIS COMMUNICATIONS COMPU‐CALL, INC ETHERWAN INFOCUS ADDON STORE AZIO CORPORATION COMPUTER EXCHANGE LTD EVGA.COM INGRAM BOOKS ADESSO B & B ELECTRONICS COMPUTERLINKS EXABLAZE INGRAM MICRO ADTRAN B&H PHOTO‐VIDEO COMTROL EXACQ TECHNOLOGIES INC INNOVATIVE ELECTRONIC DESIGNS ADVANTECH AUTOMATION CORP. BASF CONNECTGEAR EXTREME NETWORKS INOGENI ADVANTECH CO LTD BELDEN CONNECTPRO EXTRON INSIGHT AEROHIVE NETWORKS BELKIN COMPONENTS COOLGEAR F5 NETWORKS INSIGNIA ALCATEL BEMATECH CP TECHNOLOGIES FIRESCOPE INTEL ALCATEL LUCENT BENFEI CRADLEPOINT, INC. FORCE10 NETWORKS, INC INTELIX
    [Show full text]