Author Archive
You are browsing the archives of admin.
Multiple pulse thermal damage thresholds of materials for x-ray free electron laser optics investigated with an ultraviolet laser
Stefan P. Hau-Riege, Richard A. London, Richard M. Bionta, Regina Soufli, Dmitri Ryutov et al.
Optical elements to be used for x-ray free electron lasers (XFELs) must withstand multiple high-fluence pulses. We have used an ultraviolet laser to study the damage of two candidate materials, crystalline Si and BC-coated Si, emulating the temperature profile expected to occur in optics exposed to … [Appl. Phys. Lett. 93, 201105 (2008)] published Wed Nov 19, 2008.
Previous Stories
- Strain-induced low dimensional confinement structures
- Coherent anti-Stokes Raman microspectroscopy using spectral focusing with glass dispersion
- Compensation of thermal refraction effect in high-Q toroidal microresonator by polydimethylsiloxane coating
- Converging and wave guiding of Gaussian beam by two-layer dielectric rods
- Transformable broad-band transparency and amplification in negative-index films
- Low threshold lasing of GaN-based vertical cavity surface emitting lasers with an asymmetric coupled quantum well active region
- Improved wall plug efficiency of a 1.9 THz quantum cascade laser by an automated design approach
- Observation of injection locking in an optomechanical rf oscillator
- Mysterious source of high-energy cosmic radiation discovered
- Direct characterization of focusing light by negative refraction in a photonic crystal flat lens
- Quantum-dot light-emitting diodes utilizing CdSe/ZnS nanocrystals embedded in TiO[sub 2] thin film
- Black holes are the rhythm at the heart of galaxies
- A novel nanoscale semiconductor photocatalyst for solar hydrogen production
- Vascular-focused hyperthermia using gold nanoshells enhances radiotherapy efficacy
- Design principles for particle plasmon enhanced solar cells
- Photoresponses in polycrystalline silicon phototransistors incorporating germanium quantum dots in the gate dielectrics
- New electronic read-out design for astronomical detectors
- Society of Vacuum Coaters 52nd Annual Technical Conference
- Gamma-ray evidence suggests ancient Mars had oceans
- A dual-resonant terahertz metamaterial based on single-particle electric-field-coupled resonators
- Liquid phase direct laser printing of polymers for chemical sensing applications
- Intensity detection of terahertz quantum cascade laser radiation using electro-optic sampling
- Variation of the feedback sensitivity in a 1.55 mu m InAs/InP quantum-dash Fabry–Perot semiconductor laser
- The effect of injector barrier thickness and doping level on current transport and optical transition width in a lambda ~ 8.0 mu m quantum cascade structure
- Ultrastable in reflection photonic crystal fiber modal interferometer for accurate refractive index sensing
- Broadband Raman amplification in silicon
- Joint OECD-World Bank Conference on Innovation and Sustainable Growth in a Globalised World
- XMM-Newton and Integral find clues on magnetic powerhouses
- NASA tests lunar rovers and oxygen production technology
- Fiber lasers generating radially and azimuthally polarized light
- Air-voids embedded high efficiency InGaN-light emitting diode
- Azimuthal dependent reflection anisotropy spectroscopy of Ag(110) near the plasmon resonance energy
- Efficient infrared electroabsorption with 1 V applied voltage swing using intersubband transitions
- All-optical switching of holographic gratings made of polymer-liquid-crystal-polymer slices containing azo-compounds
- Mineral kingdom has co-evolved with life
- Astronomers capture first images of newly discovered solar system
- IBEX spacecraft reaches orbit, begins instrument commissioning
- Snapshot of an exoplanet
- Dynamics of photoalignment in azo-dye-doped liquid crystals
- An improved active region concept for highly efficient GaSb-based optically in-well pumped vertical-external-cavity surface-emitting lasers
- Efficient second harmonic generation in ZnO nanorod arrays with broadband ultrashort pulses
- Maskless lithography: photons rather than electrons
- Multiple plasmonic modes with sculptured thin films
- Mysterious aurora discovered on Saturn
- Dusty shock waves generate planet ingredients
- Theoretical calculations of the carrier induced refractive index change in tensile-strained InGaAsP for use in 1550 nm semiconductor optical amplifiers
- Energy transfer between silicon–oxygen-related defects and Yb[sup 3+] in transparent glass ceramics containing Ba[sub 2]TiSi[sub 2]O[sub 8] nanocrystals
- New image reveals glowing stellar nurseries
- Phoenix finishes successful work on Mars
- Image reconstruction in segmented femtosecond laser-written waveguide arrays
- Experimental observation of narrow surface plasmon resonances in gold nanoparticle arrays
- Chandrayaan-1 now in lunar orbit
- Flexible optical waveguides based on the omnidirectional reflection of one-dimensional photonic crystals
- Electrically pumped ultraviolet ZnO diode lasers on Si
- Chaotic dynamics in semiconductor lasers subjected to polarization-rotated optical feedback
- Encouraging Student Interest in Science and Technology Studies
- ESO captured the deepest ultraviolet image of the universe
- ESO captured the deepest image of the universe
- Silicon photonic crystal nanostructures for refractive index sensing
- Dynamic surface plasmon patterns generated by reconfigurable “cogwheel-shaped” beams
- Low-loss modes in hollow metallic terahertz waveguides with dielectric coatings
- Designing high-performance spectrographs for extremely large telescopes
- Small divergence edge-emitting semiconductor lasers with two-dimensional plasmonic collimators
- Reduction of efficiency droop in InGaN light emitting diodes by coupled quantum wells
- Spontaneous luminescence polarizations of wurtzite InGaN/GaN quantum wells
- Tuning the polymer refractive index with nanosized organic dopants
- NASA’s Phoenix continues to weaken
- Chandrayaan-1 now in lunar transfer trajectory
- All-angle zero reflection at metamaterial surfaces
- Plasmonic antenna array at optical frequency made by nanoapertures
- First rocket parts of NASA’s new launch system arrive in Florida
- ‘Ghost of Mirach’ materializes in space telescope image
- Surface-emitting photonic crystal terahertz quantum cascade lasers
- Ultrashort-pulse laser calligraphy
- The focusing effect of graded index photonic crystals
- A physical model for the rapid degradation of semiconductor laser diodes
- Powering up nanoparticles: versatile carbon materials for engineering and medicine
- Powering up nanoparticles: versatile carbon materials for engineering and medicine
- Powering up nanoparticles: versatile carbon materials for engineering and medicine
- Powering up nanoparticles: versatile carbon materials for engineering and medicine
- Stark-tunable electroluminescence from cavity polariton states
- Simultaneous observation of single- and two-photon excitation photoluminescence on optically quenched wide-gap semiconductor crystals
- All-optical steering of soliton waveguides in dye-doped liquid crystals
- Autofluorescence insensitive imaging using upconverting nanocrystals in scattering media
- Optical property of beta barium borate in terahertz region
- A new material for high-performance solar cells
- Single-source clusters enable tailoring of structures and nanostructures
- Single-source clusters enable tailoring of structures and nanostructures
- Single-source clusters enable tailoring of structures and nanostructures
- Single-source clusters enable tailoring of structures and nanostructures
- NASA’s Hubble Space Telescope is back in business
- Astronomers continue the search for antimatter
- NASA delays Hubble servicing mission
- CHEP 2009 (17th International Conference on Computing in High Energy and Nuclear Physics)
- APS April Meeting 2009
- 2009 AAAS Annual Meeting
- APS March Meeting 2009
- Phoenix plays it “safe”
- Gate-field-induced phase transitions in VO[sub 2]: Monoclinic metal phase separation and switchable infrared reflections
- Surface-emitting terahertz quantum cascade laser source based on intracavity difference-frequency generation
- Semicon Europa 2009
- MRS Spring 2009
- MESSENGER reveals more of Mercury’s hidden territory
- NASA’S Phoenix mission faces survival challenges
- Label-free porous silicon membrane waveguide for DNA sensing
- Native-oxide-confined high-index-contrast lambda = 1.15 mu m strain-compensated InGaAs single quantum well ridge waveguide lasers
- Millisecond Brillouin scattering spectroscopy
- Fabrication and characterization of ultrafast carbon nanotube saturable absorbers for solid-state laser mode locking near 1 mu m
- NASA orbiter reveals details of a wetter Mars
- Aberration-free imaging for light and electrons
- Simple theoretical model for the temperature stability of InAs/GaAs self-assembled quantum dot lasers with different p-type modulation doping levels
- Superconducting single photon detectors with minimized polarization dependence