Archive for March 2008
You are browsing the archives of 2008 March.
Two new star systems found
These new systems are the first of their kind ever discovered.
Previous Stories
- Smallest black hole found
- Phase-velocity measurement of a tightly focused Gaussian beam by use of sum frequency generation
- a-Si nanolayer induced enhancement of the 1.53 mu m photoluminescence in Er[sup 3+] doped a-Al[sub 2]O[sub 3] thin films
- Soft x-ray source for nanostructure imaging using femtosecond-laser-irradiated clusters
- Enhanced light output of GaN-based light-emitting diodes with ZnO nanorod arrays
- Temperature dependence of surface plasmon mediated emission from metal-capped ZnO films
- Optical limiting in lead magnesium niobate–lead titanate multilayers
- Looking for life
- Ares test roll along
- InAs/GaSb cascaded active region superlattice light emitting diodes for operation at 3.8 mu m
- ZnCdSe/ZnCdMgSe quantum cascade electroluminescence
- Detuning characteristics of the linewidth enhancement factor of a midinfrared quantum cascade laser
- Resonant terahertz reflection of periodic arrays of subwavelength metallic rectangles
- Shape-engineered epitaxial InGaAs quantum rods for laser applications
- Lessons for the future on asteroid’s surface
- Endeavour crew homeward bound
- Enceladus more active than thought
- Short wavelength (4 mu m) quantum cascade detector based on strain compensated InGaAs/InAlAs
- Linewidth measurement of external grating cavity quantum cascade laser using saturation spectroscopy
- Rapid response mechanism of pi cell
- [C-caron]erenkov-type phase-matched second-harmonic emission from GaAs/AlGaAs quantum-cascade lasers
- New organic molecule in space
- Epitaxially grown n-ZnO/MgO/TiN/n[sup +]-Si(111) heterostructured light-emitting diode
- Terahertz radiation from Er,O-codoped GaAs surface grown by organometallic vapor phase epitaxy
- High quantum efficiency two color type-II InAs/GaSb n-i-p-p-i-n photodiodes
- Energy harvesting for self-powered nanosystems
- Subwavelength imaging of light confinement in high-Q/small-V photonic crystal nanocavity
- 1.6 W high wall plug efficiency, continuous-wave room temperature quantum cascade laser emitting at 4.6 mu m
- Space rocks from the beginning
- Cheap nanoimprint lithography
- Circular polarization emission from an external cavity diode laser
- Surface plasmon polaritons generated by optical vortex beams
- Characterization of a-plane InGaN multiple-quantum wells grown on maskless lateral epitaxially overgrown a-plane GaN
- Quantum chemical study of the initial surface reactions of atomic layer deposition GaAs for photonic crystal fabrication
- A passive all-optical semiconductor device for level amplitude stabilization based on fast saturable absorber
- Bias-selectable tricolor tunneling quantum dot infrared photodetector for atmospheric windows
- Jules Verne reaches parking orbit
- Action replay of powerful stellar explosion
- Highly efficient laser action in femtosecond-written Nd:yttrium aluminum garnet ceramic waveguides
- Real-time spectroscopy with subgigahertz resolution using amplified dispersive Fourier transformation
- Submillisecond response nematic liquid crystal modulators using dual fringe field switching in a vertically aligned cell
- Searching for water on Titan
- New place to seek life on Mars
- GIOVE-B launch website now available
- Nonlinear long-period gratings in As[sub 2]Se[sub 3] chalcogenide fiber for all-optical switching
- Demonstration of a refractometric sensor based on optical microfiber coil resonator
- Modulated optical phase conjugation in rhodamine 110 doped boric acid glass saturable absorber thin films
- Enhanced broadband near-infrared luminescence and optical amplification in Yb–Bi codoped phosphate glasses
- Finesse enhancement in silicon-on-insulator two-ring resonator system
- Extra-terrestrial resource use is key to human expansion through the cosmos
- Methane detected on extrasolar planet
- 2008 National Dark-Sky Week
- Lightweight optical telescope structures built from plastic composites
- Water and planet formation
- High-power semiconductor disk laser based on InAs/GaAs submonolayer quantum dots
- Combined nonlinear-optical electric and magnetic field response in a cadmium manganese telluride crystal
- Second harmonic generation in ridge Bragg reflection waveguides
- Investigating the Red Planet’s volcanic past
- Nearly lattice-matched n, i, and p layers for InGaN p-i-n photodiodes in the 365–500 nm spectral range
- Back-illuminated separate absorption and multiplication GaN avalanche photodiodes
- High spatial resolution fiber-optic Fizeau interferometric strain sensor based on an in-fiber spherical microcavity
- Cassini’s daring flyby of Enceladus
- A puzzling storm
- Life soup
- A space garden?
- Time-resolved measurement of the local lattice temperature in terahertz quantum cascade lasers
- Ultraviolet spectra of KPb[sub 2]Cl[sub 5]:Er[sup 3+]
- Power law carrier dynamics in semiconductor nanocrystals at nanosecond timescales
- Monte Carlo study of GaN versus GaAs terahertz quantum cascade structures
- Control of quantum-confined Stark effect in InGaN/GaN multiple quantum well active region by p-type layer for III-nitride-based visible light emitting diodes
- Generating electrically tunable optical vortices by a liquid crystal cell with patterned electrode
- Angular spectrum tailoring in solid immersion microscopy for circuit analysis
- Demonstration of transverse-magnetic dominant gain in quantum dot semiconductor optical amplifiers
- Paving the way for carbon nanotube integrated circuits
- A plasmonic ‘bull’s-eye’ nanoresonator
- A plasmonic âbull’s-eyeâ nanoresonator
- Light emission from a zinc oxide nanowire
- Using a nano light source to investigate small-scale composite materials
- One day down, 11 more to go
- New spacecraft for NASA
- Submicron silicon waveguide optical switch driven by microelectromechanical actuator
- Experimental study of the output dynamics of intracavity frequency doubled optically pumped semiconductor disk lasers
- A Peruvian mystery
- Room temperature continuous wave operation of quantum cascade lasers with watt-level optical power
- Optical property and spectroscopy studies on the explosive 2,4,6-trinitro-1,3,5-trihydroxybenzene in the terahertz range
- Characteristics of long wavelength InGaN quantum well laser diodes
- Broadside coupling to long-range surface plasmons using an angle-cleaved optical fiber
- Improvements in a-plane GaN crystal quality by a two-step growth process
- High performance of GaN thin films grown on sapphire substrates coated with a silica-submicron-sphere monolayer film
- Passively mode-locked picosecond Nd:YVO[sub 4] self-Raman laser
- Density characterization of femtosecond laser modification in polymers
- Endeavour on its way
- The Mercury you’ve never seen
- Electrically injected InAs/GaAs quantum dot spin laser operating at 200 K
- Upconversion electroluminescence in InAs quantum dot light-emitting diodes
- Two-photon-induced excited-state absorption: Theory and experiment
- Terahertz wave reference-free phase imaging for identification of explosives
- Optically tuned resonant optical reflectance filter
- Curving monolithic silicon for nonplanar focal plane array applications
- Up close and personal with Enceladus
- Cassini to get up close and personal Enceladus
- Neighbor may harbor earthlike neighbor
- Birefringence of beta-BaB[sub 2]O[sub 4] crystal in the terahertz region for parametric device design
- Improving spatial resolution and reducing aspect ratio in multiphoton polymerization nanofabrication
- Spectrally resolved femtosecond Maker fringes technique
- Phosphor-free white light-emitting diode with laterally distributed multiple quantum wells
- Terahertz Raman laser based on silicon doped with phosphorus
- Saturn’s moon sports dusty halo
- The search for life on Mars
- Second Galileo spacecraft prepares for launch
- Mars and Venus are surprisingly similar
- First binocular light images
- Electrically driven high-Q quantum dot-micropillar cavities
- White-light light-emitting device based on surface plasmon-enhanced CdSe/ZnS nanocrystal wavelength conversion on a blue/green two-color light-emitting diode
- Continuous-wave room temperature operated 3.0 mu m type I GaSb-based lasers with quinternary AlInGaAsSb barriers
- Improving the operation temperature of semiconductor-based terahertz photodetectors: A multiphoton design
- Optical polarization characteristics of InGaN/GaN light-emitting diodes fabricated on GaN substrates oriented between (10[overline 1]0) and (10[overline 1][overline 1]) planes
- Spring is aurora season
- Direct modulation of electroluminescence from silicon nanocrystals beyond radiative recombination rates
- Pretilt angle control for single-cell-gap transflective liquid crystal cells
- Microwave guiding in air by a cylindrical filament array waveguide
- Temperature influence on the dynamics of vertically aligned liquid crystal displays
- Dispersive gain and loss in midinfrared quantum cascade laser
- Terahertz wave generation from a dc-biased multimode laser
- Near-field optical trapping with an ultrashort pulsed laser beam
- Monolithic InGaN-based white light-emitting diodes with blue, green, and amber emissions
- New materials advance gamma-ray telescopes
- Avalanches on Mars
- Investigation of Pr[sup 3+] as a sensitizer in quantum-cutting fluoride phosphors
- Raman gain from waveguides inscribed in KGd(WO[sub 4])[sub 2] by high repetition rate femtosecond laser
- Near-infrared waveguide-based nickel silicide Schottky-barrier photodetector for optical communications
- Temperature dependence of the gain profile for terahertz quantum cascade lasers
- Multi-octave spectral comb from a gas-filled hollow fiber
- Advanced fabrication of organic thin-film transistors