OpticsInfoBase

Scientific Highlights from Operation of FLASH and New Opportunities with LCLS

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JFA1
• OSA Technical Digest (CD)
• Schneider, Jochen
• The performance of the world's first X-ray free-electron lasers FLASH at DESY in Hamburg and LCLS at SLAC in Stanford will be presented together with early scientific ...

Explosions of Clusters in Intense X-Ray Pulses

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JFA2
• OSA Technical Digest (CD)
• Hoffmann, Kay; Kandadai, N; Thomas, H; Helal, A; Keto, J; Ditmire, T; Iwan, B; Timneanu, N; Andreasson, J; Seibert, M; van der Spoel, D; Hajdu, J; Schorb, S; Gorkhover, T; Rupp, D; Adolph, M; Möller, T; Doumy, G; DiMauro, L F; Bostedt, C; Bozek, J; Hoener, M; Murphy, B; Berrah, N
• Cluster explosion in ultrashort intense X-ray laser fields have been studied in first experiments at the LCLS with time-of flight techniques. Ion charge states and kinetic energy...

X-Ray-Induced Multiple Core Vacancies in Impulsively Aligned Molecules

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JFA3
• OSA Technical Digest (CD)
• Cryan, James P; Glownia, James M; Berrah, Nora; Blaga, Cosmin; Bozek, John D; Buth, Christian; DiMauro, Louis F; Fang, Li; Guehr, Markus; Hoener, Matthias; Marangos, Jon P; March, Anne Marie; McFarland, Brian K; Trigo, Mariano; Young, Linda; Bucksbaum, Philip H; Coffee, Ryan N
• We observe a rich angular spectrum resulting from the Auger decay of a single K-shell vacancy but an apparent angle independence for the decay of a double core vacancy 'localized' to a...

Ultrafast X-Ray-Pump, Laser-Probe Spectroscopy at LCLS

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JFA4
• OSA Technical Digest (CD)
• Glownia, James M; Cryan, James; Kornilov, Oleg; Hertlein, Marcus; Gessner, Oliver; Belkacem, A; Wilcox, Russell; Huang, Gang; White, James; Petrovic, Vladimir; Raman, Chandra; Merdji, Hamed; Ray, Dipanwita; Andreasson, Jakob; Hajdu, Janos; Frisch, Josef; White, William; Bostedt, Christoph; Bucksbaum, Philip H; Coffee, Ryan
• We report the first pump-probe spectra using 1 keV pulses from LCLS to excite N²in delayed coincidence with 800 nm laser pulses. The delay between pump and probe was...

Nonlinear Processes in N2Using LCLS Short X-Ray Pulses

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JFA5
• OSA Technical Digest (CD)
• Fang, Li; Hoener, Matthias; Guehr, Markus; Blaga, Cosmin; Bostedt, Christoph; Bozek, John D; Bucksbaum, Phil; Buth, Christian; Coffee, Ryan; Cryan, James; DiMauro, Lou; Gessner, Oliver; Glownia, James; Hosler, Erik; Kanter, Elliot P; Kornilov, Oleg; Kukk, Edwin; McFarland, Brian K; Murphy, Brendan; Pratt, Steve T; Rolles, Daniel; Berrah, Nora
• We use the unprecedented LCLS peak power to study nonlinear X-ray multiphoton physics in molecules. We report on fundamental questions concerning the creation and decay of...

1 Hz Operation of a Gain-Saturated 10.9 nm Table-Top Laser

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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JFA6
• OSA Technical Digest (CD)
• Wang, Yong; Alessi, David; Martz, Dale; Berrill, Mark; Luther, Brad; Rocca, Jorge
• We report a gain-saturated 10.9nm table-top soft X-ray laser operating at 1Hz. With an average power of 1µW and pulse energy ~2µJ this laser extends a shorter ...

Laser - Ion Acceleration in the Laser Transparency Regime

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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JFB1
• OSA Technical Digest (CD)
• Steinke, Sven; Henig, Andreas; Schnuerer, Matthias; Sokollik, Thomas; Hoerlein, Rainer; Kiefer, Daniel; Jung, Daniel; Schreiber, Joerg; Hegelich, B M; Yan, X Q; Meyer-ter-Vehn, J; Tajima, T; Nickles, P V; Sandner, Wolfgang; Habs, Dietrich
• Experiments on laser-induced ion acceleration from ultra-thin (nm) foil targets reveal a dramatic increase in the conversion efficiency and the acceleration of C⁶⁺ions in a...

MeV Proton Beams Generated by 3 mJ Ultrafast Laser Pulses at 0.5 kHz

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JFB2
• OSA Technical Digest (CD)
• Hou, Bixue; Nees, John; Easter, James; He, Zhaohan; Davis, Jack; Petrov, George; Thomas, Alexander; Krushelnick, Karl
• Well-collimated proton beams are generated from bulk glass along the target normal direction by tightly focused 3mJ ultrafast laser pulses at intensities of...

Formation of Optical Bullets in Laser-Driven Plasma Bubble Accelerators

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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JFB4
• OSA Technical Digest (CD)
• Dong, P; Reed, S; Yi, S A; Kalmykov, S; Shvets, G; Matlis, N; McGuffey, C; Bulanov, S S; Chvykov, V; Kalintchenko, G; Krushelnick, K; Maksimchuk, A; Matsuoka, T; Thomas, A G; Yanovsky, V; Downer, M C
• We visualize laser-generated electron density “bubbles” by observing “bullets” of light that they trap, focus and compress from co-propagating probe pulses. We correlate these bullets...

Attosecond Electron Bunches from Laser Wakefield Accelerators

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JFB5
• OSA Technical Digest (CD)
• Luttikhof, Mark J; Khachatryan, Arsen G; van Goor, Fred A; Boller, Klaus J
• Femtosecond electron bunches with ultra-relativistic energies were recently generated by laser wakefield accelerators. Here we predict that such accelerators can generate stable...

High Quality Electron Beams from a Laser Wakefield Accelerator

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JFB6
• OSA Technical Digest (CD)
• Wiggins, Mark; Shanks, Richard; Issac, Riju; Welsh, Gregor; Anania, Maria Pia; Brunetti, Enrico; Vieux, Gregory; Cipiccia, Silvia; Ersfeld, Bernhard; Islam, Ranaul; Burgess, Ronan; Manahan, Grace; Aniculaesei, Constantin; Gillespie, Allan; MacLeod, Allan; Jaroszynski, Dino
• Very stable, high quality electron beams (current ~ 10 kA, energy spread < 1%, emittance ~ 1? mm mrad) have been generated in a laser-plasma accelerator driven by 25 TW femtosecond...

Photonic Structure Based Acceleration of Non-Relativistic Electrons - Simulations and Proof-of-Concept Experiment

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JFB7
• OSA Technical Digest (CD)
• Breuer, John; Sears, Christopher M; Plettner, Tomas; Hommelhoff, Peter
• We simulate the acceleration of 30-keV electrons passing in 30 nm distance over a grating that is illuminated by femtosecond laser pulses. Acceleration gradients of 100 MeV/m can be...

Nonequilibrium Quantum Dynamics in Optomechanical Systems

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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JMA1
• OSA Technical Digest (CD)
• Marquardt, Florian
• We discuss the dynamics of optical modes coupled to vibrating nanostructures. Examples include the shuttling of photons in a cavity containing a vibrating membrane, and a single atom...

Feasability of Measuring Radiation Pressure Quantum Back-Action in Zipper Photonic Crystal Optomechanical Cavities

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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JMA2
• OSA Technical Digest (CD)
• Hill, Jeffrey T; Camacho, Ryan; Krause, Alexander G; Painter, Oskar J
• We design, fabricate and measure high-Q mechanical modes (~ 10⁵) of optomechanical zipper cavities, as a first step to observing quantum back-action in an optomechanical...

Optical Measurement of Nanomechanical Motion with an Imprecision at the Standard Quantum Limit

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JMA3
• OSA Technical Digest (CD)
• Anetsberger, Georg; Arcizet, Olivier; Gavartin, Emanuel; Unterreithmeier, Quirin P; Weig, Eva M; Gorodetsky, Michael L; Kotthaus, Jörg P; Kippenberg, Tobias J
• Ultra-high Q optical microresonators allow measuring nanomechanical motion with unprecedented sensitivity. For the first time, we reach a measurement imprecision at the standard...

Tunable Optical Forces and Mode Beating in Coupled Nano-Mechanical Beam Waveguides

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JMA4
• OSA Technical Digest (CD)
• Pernice, Wolfram H; Li, Mo; Fong, Kingyan; Tang, Hong
• We analyze the effect of spatial mode beating on optical forces in coupled waveguide resonators. Continuous sign and amplitude change is achieved through optical phase tuning....

Efficient On-Chip Phonon-Photon Translation

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JMA5
• OSA Technical Digest (CD)
• Safavi-Naeini, Amir H; Mayer Alegre, Thiago P; Painter, Oskar J
• We propose, analyze, design, and take the first experimental steps towards the demonstration of an on-chip device capable of converting photons to phonons, and vice versa, in a nearly...

The Physics of a Dissipative Optomechanical Coupling

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JMB1
• OSA Technical Digest (CD)
• Clerk, Aashish
• We analyze theoretically a novel cavity electromechanical system where a mechanical resonator modulates the damping rate of a driven cavity. Destructive quantum noise interference can...

Near-Field Cavity Optomechanics with Nanomechanical Oscillators

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JMB2
• OSA Technical Digest (CD)
• Anetsberger, Georg; Arcizet, Olivier; Gavartin, Emanuel; Unterreithmeier, Quirin P; Weig, Eva M; Kotthaus, Jörg P; Kippenberg, Tobias J
• We use evanescent near-fields of high-Q optical microresonators to extend cavity-optomechanical coupling to nanomechanical oscillators. Pure radiation pressure coupling to SiN...

Optical Probing and Actuation of Microwave Frequency Phononic Crystal Resonators without Clamping Losses

• Abstract
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• Quantum Electronics and Laser Science Conference (QELS) 2010 paper: JMB3
• OSA Technical Digest (CD)
• Eichenfield, Matt; Chan, Jasper; Safavi-Naeini, Amir H; Painter, Oskar J
• We demonstrate microwave frequency mechanical modes of optomechanical crystals having arbitrarily small clamping losses. The optomechanical crystals are connected to the substrate via...