1. Theory and Advanced Computation Group School of Electronics and Physical Sciences, University of Surrey, Guildford, GU2 7XH Ultrafast Laser Dynamics Photonic Materials Overview At the beginning of the 21st century research and technology has embarked on a journey to the THz-world and into nano-space. Examples are the conception of quantum dot nano- materials, carbon-nanotubes or functional photonic crystals, the controlled manipulation of single biological molecules or harnessing of the quantum nature of electrons and photons on ultrafast timescales. The Theory and Advanced Computation (TAC) group focuses on the theory and super- computer simulation of the fundamentals and applications of materials, devices and systems in ultra-fast photonics, nano-electronics and the biomedical sciences. The research explores the complex quantum worlds of ultra- fast photonics, nano-electronic and photonic materials as well as nano-thermodynamics and bio-photonics by means of theory and advanced computer simulation techniques. The Nano-Modelling Supercomputing Lab The TAC group uses and maintains the ATI Nano-Modelling Supercomputing Lab hosting the NEC SX-6/4BVector Supercomputer and a 148 Processor High-Bandwidth AMD Opteron cluster. TAC industrial links Infineon, Merck, NEC, NL Nano- Semiconductor, Siemens, U2T, and others… TAC Head Professor Ortwin Hess Ultrafast Gain and Index Dynamics of a Femtosecond Light Pulse in a Quantum Dot Optical Amplifier Optical Modes in a Photonic Crystal Slab The theoretical and computational research goes hand-in-hand with strong efforts in the science of high-performance computing itself. Strong collaboration within the ATI, as well as with academic partners and companies in the UK, Germany, Finland, Spain and Denmark integrate the computer simulations with experimental and nano-technological efforts and link them with innovative market applications. http://www.ati.surrey.ac.uk/tac Funding £ 500k SRIF-2 fund for supercomputing- infrastrucrue. £1M research grants (BMBF, EU, EPSRC) in 2003 and 2004 £ 300k new funding in 2005. Nano-MaterialsBiophotonic Dynamics Quantum Dots Nano-Thermodynamics and Rheo-Dynamics A Double-Inverse Opal Photonic Crystal Electronic Wavefunctions in Quantum Boxes Strain Maps in a Quantum Dot The ATI Nano-Modellling Supercomputing Lab x x t t amplification redshift absorption blueshift x z A Bio-Electronic Network of Routable Molecular Interconnects Spatio-Temporal Dynamics of Rotary Molecular Motors z x A Biological Saturable Absorber Coherence Properties of Quantum Dot Nano-Materials Spatio-Temporal Phase Dynamics Spatio-Temporal Luminescence of a Disordered Quantum Dot Nano-Material Population Dynamics in a Microcavity Laser Photonic Band Structure Whispering Gallery Modes of a Microcavity Laser Optically Pumped Semiconductor Disc Laser: Snapshot of the Optical Field Quantum Theoretical Theory Reveals Limits for the Definition of Temperature on the Nano-Scale Shear-Induced Chaos in Maxwell-Model Fluids: Lyapunov-Exponet Period-Doubling and Period-Undoubling Bifurcations