Archive for April 2008
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Astronomy magazine announces annual $2,500 award
Astronomy’s Out-of-this-world Award recognizes excellence in astronomy outreach.
Previous Stories
- Saturn’s stormy weather
- Stellar ticking time bomb explodes on cue
- Spot elusive Mercury
- High quality nitride based microdisks obtained via selective wet etching of AlInN sacrificial layers
- Zeeman splitting and confinement effects in Er[sup 3+]-doped nano-glass-ceramics in magnetic fields up to 50 T
- Enhancing the quantum efficiency of InGaN green light-emitting diodes by trimethylindium treatment
- High-speed 3D inspection for densely packed semiconductor chips
- Biologically inspired computation for intelligent autonomous exploration
- Shadows and dust
- Shawdows and dust
- Black hole expelled from its parent galaxy
- Interaction between the intrinsic second- and third-order optical fields in an Al[sub 0.53]Ga[sub 0.47]N/GaN heterostructure
- Quantitative force mapping of an optical vortex trap
- Static optical sorting in a laser interference field
- Enhanced light emission in photonic crystal nanocavities with Erbium-doped silicon nanocrystals
- GIOVE-B spacecraft in good health
- Small galaxies pack a big punch
- Small galaxies pack a pig punch
- Will meteors from Halley’s comet surge?
- Effect of pressure on the properties of phosphorus-doped p-type ZnO thin films grown by radio frequency-magnetron sputtering
- Two-photon excited luminescence spectral distribution observation in wide-gap semiconductor crystals
- Silicon light emitting diodes emitting over the 1.2–1.4 mu m wavelength region in the extended optical communication band
- GIOVE-B launch: videos and press conference
- Globular clusters still developing
- ESA’s most advanced navigation satellite launched tonight
- GIOVE-B launch update
- GIOVE-B launch timeline: what happens and when
- Intraband emission at lambda [approximate] 1.48 mu m from GaN/AlN quantum dots at room temperature
- Long-range surface plasmon polaritons on asymmetric double-electrode structures
- Low-loss terahertz transmission through curved metallic slit waveguides fabricated by spark erosion
- Exciton dynamics in current-injected single quantum dot at 1.55 mu m
- Polarized aurora
- Polarized auroras
- Ion beam figuring for precision optics
- GIOVE-B on the launch pad
- GIOVE-B on the launch pad
- Preparing to launch
- Galaxies gone wild
- GIOVE-B launch - live video streaming
- Inside blazars
- Hole confinement in quantum islands in Ga(AsSb)/GaAs/(AlGa)As heterostructures
- The influence of mobility unbalance on GaN based vertical cavity surface emitting lasers
- Metal-semiconductor-metal Ge photodetectors integrated in silicon waveguides
- In depth fiber optic trapping of low-index microscopic objects
- Schottky-quantum dot photovoltaics for efficient infrared power conversion
- Losing our Arctic ice
- GLOBE at Night 2008 results a solid step toward IYA 2009
- Bend-insensitive optical fibers simplify fiber-to-the-home installations
- Nonlinear measurement of mid-infrared absorption in AlO[sub x] waveguides
- Generation of nitrogen acceptors in ZnO using pulse thermal processing
- Single-photon level ultrafast all-optical switching
- Lasing from dye-doped photonic crystals with graded layers in dichromate gelatin emulsions
- Advances in ray-tracing techniques for multiple-aperture telescopes
- Degradation of InGaN/GaN laser diodes analyzed by microphotoluminescence and microelectroluminescence mappings
- Wideband 15 THz response using organic electro-optic polymer emitter-sensor pairs at telecommunication wavelengths
- Spectral and temporal response of liquid-crystal-on-silicon spatial light modulators
- High-speed all-optical modulation using polycrystalline silicon microring resonators
- Mission to the Moon
- Command of ISS changed
- Coupling length of silicon-on-insulator directional couplers probed by Fourier-space imaging
- Exploration of the surface director profile in a liquid crystal cell using coupling between the surface plasmon and half-leaky optical guided modes
- Enhanced near-infrared emission from Ni[sup 2+] in Cr[sup 3+]/Ni[sup 2+] codoped transparent glass ceramics
- Floating electrode optoelectronic tweezers: Light-driven dielectrophoretic droplet manipulation in electrically insulating oil medium
- Hybridized surface plasmon polaritons at an interface between a metal and a uniaxial crystal
- Black hole sheds light on galaxy
- Stellar birth in the galactic wilderness
- Portable Particle Counter
- Cassini receives extension
- Thermal emission of two-color polarized infrared waves from integrated plasmon cavities
- Highly efficient surface enhanced Raman scattering using microstructured optical fibers with enhanced plasmonic interactions
- Infrared quantum cutting in Tb[sup 3+],Yb[sup 3+] codoped transparent glass ceramics containing CaF[sub 2] nanocrystals
- Wide wavelength tuning of GaAs/Al[sub x]Ga[sub 1 - x]As bound-to-continuum quantum cascade lasers by aluminum content control
- Reduction of spacer layer thickness of InAs quantum dots using GaNAs strain compensation layer
- Quantum information processing on photonic crystal chips
- Counting single electrons with a carbon-nanotube transistor
- Diving into Jupiter’s northern lights
- Planet-harboring star drifted from the Hyades
- Milky Way’s black hole wakes up
- Bioinspired broadband antireflection coatings on GaSb
- Optical biosensor based on whispering gallery mode excitations in clusters of microparticles
- A new nova in Cygnus
- Spacecraft fine tunes course for Mars landing
- Steady state photoinduced absorption of PbS quantum dots film
- Line-narrowed, compact, and coherent source of widely tunable terahertz radiation
- Distant GRB imaged
- Improvement of light extraction from GaN-based thin-film light-emitting diodes by patterning undoped GaN using modified laser lift-off
- Wavelength tuning limitations in optically pumped type-II antimonide lasers
- Brown dwarf is coldest known stellar object
- Spitzer sees shining stellar sphere
- Brown dwarf is coldest know stellar object
- New image of Phobos
- Experimental demonstration of multiwatt continuous-wave supercontinuum tailoring in photonic crystal fibers
- CW lasing of current injection blue GaN-based vertical cavity surface emitting laser
- Low residual doping level in homoepitaxially grown ZnO layers
- Localized luminescence of zinc oxide nanostructures
- Fabricating nanowire-based solar cells on low-cost metal substrates
- New planet found in Leo
- Close encounters of three black holes
- Whispering gallery modes in hollow cylindrical microcavities containing silicon nanocrystals
- The physical picture and the essential elements of the dynamical process for dispersive cloaking structures
- 1.55 mu m ultrafast photoconductive switches based on ErAs:InGaAs
- Imaging with a 90 frames/s microbolometer focal plane array and high-power terahertz free electron laser
- A route to increase the enhancement factor of surface enhanced Raman scattering (SERS) via a high density Ag flower-like pattern
- Direct observation of three-photon resonance in water-soluble ZnS quantum dots
- Finding earthlike worlds
- Finding Earth-like worlds
- High performance bi-dimensional resonant grating filter at 850 nm under high oblique incidence of ~ 60[degree]
- Magnetic resonance hybridization and optical activity of microwaves in a chiral metamaterial
- From polystyrene beads to photonic devices for telecommunication
- Volcanoes on Venus
- Cosmic engines surprise XMM-Newton
- Volcanos on Venus
- Control of optical mode distribution through etched microstructures for improved broad area laser performance
- Continuous wave operation of a spiral-shaped microcavity laser
- Large-scale quantum dot IR focal plane array
- ATV Jules Verne docks
- Witnessing the formation of distant galaxies
- All-optical signal amplification in multiple-quantum-well resonant photonic bandgap structures
- Optical loss in silicon microphotonic waveguides induced by metallic contamination
- In-line phase-contrast imaging of a biological specimen using a compact laser-Compton scattering-based x-ray source
- Quantum memory for long-distance and multiphoton entanglement
- Mechanisms of subdiffraction free-space imaging using a transmission-line metamaterial superlens: An experimental verification
- Near-field scanning optical microscopy with monolithic silicon light emitting diode on probe tip
- Two-port vectorial terahertz electro-optic sampling system
- Spectrally smoothed supercontinuum generation by using unstably mode-locked laser pulses
- An alternative of spectroscopic ellipsometry: The double-reference method
- High-rate data buffering in silicon nanophotonic devices
- The Moon’s stellar companion
- Gamma-ray burst detected
- Source of solar wind
- Youngest forming planet discovered
- High efficiency diffractive grating couplers for interfacing a single mode optical fiber with a nanophotonic silicon-on-insulator waveguide circuit
- Femtosecond laser induced coordination transformation and migration of ions in sodium borate glasses
- Nonlinear reflection effects on Fresnel phase matching