Archive for July 2008
You are browsing the archives of 2008 July.
Solar eclipse images
NASA brings the total solar eclipse to North America.
Previous Stories
- Water found on Mars
- A dual beam photonic crystal fiber trap for microscopic particles
- Slab waveguides and nanoscale patterning of pulsed laser-deposited Ge[sub 0.2]Se[sub 0.8] chalcogenide films
- A pure 1.5 mu m electroluminescence from metal-oxide-silicon tunneling diode using dislocation network
- Impact of resistance on cathodoluminescence and its application for layer sheet-resistance measurements
- NASA tests Moon-imaging spacecraft at Goddard
- NASA confirms liquid lake on Saturn moon
- Enhanced light extraction efficiency from AlGaInP thin-film light-emitting diodes with photonic crystals
- Simultaneous forward and backward terahertz generations in periodically poled stoichiometric LiTaO[sub 3] crystal using femtosecond pulses
- Strong terahertz conductance of graphene nanoribbons under a magnetic field
- Enhanced photoluminescence from germanium-based ring resonators
- Polarization-matched GaInN/AlGaInN multi-quantum-well light-emitting diodes with reduced efficiency droop
- Evidence of dark energy found
- Infrared emission from the substrate of GaAs-based semiconductor lasers
- Single-frequency, Yb-free, resonantly cladding-pumped large mode area Er fiber amplifier for power scaling
- Fabry–P[e-acute]rot microcavities with controllable resonant wavelengths in periodic dielectric waveguides
- A high speed, postprocessing free, quantum random number generator
- The effect of doping the M-barrier in very long-wave type-II InAs/GaSb heterodiodes
- Real-time optical reflectometry enabled by amplified dispersive Fourier transformation
- Thermally assisted magnetic recording on a bit-patterned medium by using a near-field optical head with a beaked metallic plate
- Supreme Court upholds patent exhaustion
- Barred spiral galaxies are latecomers
- Phoenix continues trying to collect soil
- Transient carrier transfer in tunnel injection structures
- Simultaneous closure of multiple high voltage parallel spark channels without switch: A parametric study
- Phoenix’s new method for collecting icy samples
- Estimating threshold reduction for spin-injected semiconductor lasers
- Effect of waveguide sidewall roughness on the threshold current density and slope efficiency of quantum cascade lasers
- The secrets of the northern lights
- The secrets of the Northern Lights
- New exoplanet found
- Micro-bonding laser chips using arrayed beams
- Phoenix’s next soil sample
- Holographic fabrication of diamondlike photonic crystal template using two-dimensional diffractive optical elements
- Emission color tunable light-emitting diodes composed of InGaN multifacet quantum wells
- “Plug and Play” single photons at 1.3 mu m approaching gigahertz operation
- Strain control of the magnetic anisotropy in (Ga,Mn) (As,P) ferromagnetic semiconductor layers
- Light extraction enhancement of InGaN light-emitting diode by roughening both undoped micropillar-structure GaN and p-GaN as well as employing an omnidirectional reflector
- Magnetic fields stronger than expected
- The quiet explosion
- The quiet explosion
- The 2008 total solar eclipse
- Phoenix works through the night
- Image shows ‘no organics’ zone around Pinwheel
- Examining the terahertz signal from a photoexcited biased semiconductor superlattice for evidence of gain
- Enhanced light extraction efficiency in flip-chip GaN light-emitting diodes with diffuse Ag reflector on nanotextured indium-tin oxide
- A novel approach to quantitative spectroscopy of atoms in a magnetic field and applications based on an atomic vapor cell with L = lambda
- Degenerate multiwave mixing using Z-scan technique
- Team uses gravitational lenses to weigh 70 galaxies
- Fourth dwarf planet named Makemake
- Electroluminescence efficiency enhancement using metal nanoparticles
- Room temperature electrical spin injection in remanence
- Method to measure spatial coherence of subangstrom electron beams
- Multiphoton microscopy based on four-wave mixing of colloidal quantum dots
- Ultraviolet electroluminescence from controlled arsenic-doped ZnO nanowire homojunctions
- The star that got away
- Photoluminescence from localized states in disordered indium nitride
- Full-field particle velocimetry with a photorefractive optical novelty filter
- Rendering a color palette by light-emitting diodes
- Manipulating optical rotation in extraordinary transmission by hybrid plasmonic excitations
- Highly sensitive coherent detection of terahertz waves at room temperature using a parametric process
- A rendezvous with Phobos
- Finding the weight of black holes
- Patent Review: Nanotechnology in Optics
- Transistor laser with emission wavelength at 1544 nm
- Uncooled infrared detectors for 3–5 mu m and beyond
- Observation of spectral drift in engineered quadratic nonlinear media
- Emission properties of high-Q silicon nitride photonic crystal heterostructure cavities
- The Red Planet’s wet past
- Brightest star in the galaxy has competition
- Room temperature continuous wave operation of quantum cascade lasers with 12.5% wall plug efficiency
- Barrier effect on hole transport and carrier distribution in InGaN/GaN multiple quantum well visible light-emitting diodes
- Gain and continuous-wave laser oscillation on the 1315 nm atomic iodine transition pumped by an air-helium electric discharge
- Dynamic properties of InAs/InP (311)B quantum dot Fabry–Perot lasers emitting at 1.52 mu m
- Morphologies and nonlinear scaling of laser damage on glass surfaces by tightly focused femtosecond pulses
- Pulsed ultrasound-modulated optical tomography using spectral-hole burning as a narrowband spectral filter
- Intense upconversion and infrared emissions in Er[sup 3+]–Yb[sup 3+] codoped Lu[sub 2]SiO[sub 5] and (Lu[sub 0.5]Gd[sub 0.5])[sub 2]SiO[sub 5] crystals
- Top grating index-coupled distributed feedback quantum cascade lasers
- Phoenix looks for ice-rich soil
- Grating-coupled surface emitting quantum cascade ring lasers
- Optical study of lateral carrier transfer in (In,Ga)As/GaAs quantum-dot chains
- Integrated optofluidic Mach–Zehnder interferometer based on liquid core waveguides
- Determination of internal parameters in blue InGaN laser diodes by the measurement of cavity-length dependent characteristics
- Carbon nanotube mechanical relays for electronics
- Ultrasmall square-lattice zero-cell photonic crystal laser
- Continuous wave operation of diode lasers at 3.36 mu m at 12 [degree]C
- Laser-induced destruction of gold nanoshells: new weapons in the cell-killing arsenal
- Novel astronomical instrumentation for the Gemini telescopes
- The underlying terahertz vibrational spectrum of explosives solids
- Twenty times lower ignition threshold for laser driven fusion using collective effects and the inhibition factor
- Photonic crystal cavity based gas sensor
- Electromagnetic response of thin metamaterial layers
- Age of mystery star cluster unknown
- Rare star-making galaxy found
- Jupiter-sized exoplanet estimate
- Phoenix’s falling heat shield
- Phoenix continues sample-collection tests
- Photonic nanojet-induced modes in chains of size-disordered microspheres with an attenuation of only 0.08 dB per sphere
- Quantum dot nanocolumn photodetectors for light detection in the infrared
- Enhanced photoluminescence from embedded PbSe colloidal quantum dots in silicon-based random photonic crystal microcavities
- Sunlight makes asteroids binary system
- A three-dimensional isotropic transmission-line metamaterial topology for free-space excitation
- Electroluminescence from monolayer ZnO nanoparticles using dry coating technique
- Monocrystalline Al[sub x]Ga[sub 1 - x]As heterostructures for high-reflectivity high-Q micromechanical resonators in the megahertz regime
- Phoenix delivers soil-chemistry sample
- Future space exploration
- Midinfrared intersubband absorption in wide band gap II-VI Zn[sub x]Cd[sub 1 - x]Se multiple quantum wells with metastable zincblende MgSe barriers
- Rosetta awakes from hibernation
- Einstein gives a thumbs-up
- Phoenix to bake ice-rich soil next week
- Longitudinal coherence in thermal ghost imaging
- On the importance of radiative and Auger losses in GaN-based quantum wells
- Enhanced characteristics of blue InGaN/GaN light-emitting diodes by using selective activation to modulate the lateral current spreading length
- Viewing-angle controllable liquid crystal display using a fringe- and vertical-field driven hybrid aligned nematic liquid crystal
- Orientation-patterned gallium arsenide: engineered materials for infrared sources
- New approach to very-high-resolution astronomical imaging
- First images of outer solar system made
- Tunable generation of Bessel beams with a fluidic axicon
- Analysis of negative refraction from anomalous phase in transmission spectrum
- Tunable surface plasmons for emission enhancement of silicon nanocrystals using Ag-poor cermet layer
- Experimental demonstration of phase locking of a two-dimensional fiber laser array using a self-imaging resonator
- Pockel’s effect and optical rectification in (111)-cut near-intrinsic silicon crystals
- Tunneling-injection of electrons and holes into quantum dots: A tool for high-power lasing
- Electric-field switching of exciton spin splitting in coupled quantum dots
- Enhanced emission efficiency of GaN/InGaN multiple quantum well light-emitting diode with an embedded photonic crystal
- Keeping Nanotech Safe
- Procurement of full Galileo system begins