asteroza + beam   78

Phys. Rev. Lett. 122, 256403 (2019) - Alloy-Free Band Gap Tuning across the Visible Spectrum
Using molecular beam epitaxy to build up thin film composites as an alternative to conventional rare metals
molecular  beam  epitaxy  thin  film  composite  materials  science  research  technology  alternative  rare  earth  metal 
july 2019 by asteroza
A test centre for neutral beam injection
SPIDER is a pretty strong for continuous neutral particle beam generator
neutral  particle  beam  accelerator  generator  ITER  negative  ion  source 
june 2019 by asteroza
Self-Guided Beamed Propulsion for Breakthrough Interstellar Missions | NASA
the neutral particle beam system is kinda interesting, laser doppler cooled supersonic alkali vapor jet
neutral  particle  beam  projector  alkali  vapor  jet  supersonic  laser  space  propulsion  research  technology  NIAC  physics  optics 
april 2019 by asteroza
Advanced Technologies – Cambridge Vacuum Engineering
Semi-portable electron beam welder that uses a local vacuum over the weld site, Cammel Laird is trialing it for shipbuilding applications...
electron  beam  welder  local  vacuum  manufacturing  technology 
april 2019 by asteroza
Lumotive
Using a silicon chip coated in nanoantennas, they effectively made a metamaterial mirror for a laser, allowing a 1D laser scanner LIDAR that is solid state. Made using methods similar to LCD manufacturing, which means the beam can be actively scanned at will, so not a fixed scanning cycle either.
LIDAR  sensor  metatmaterial  mirror  1D  scanner  beam  steering  solid  state  materials  science  research  technology 
march 2019 by asteroza
Protecting the LHC from itself | symmetry magazine
Interesting that they have to spread out the beam first before hitting the dump, and the dump is made from a block of graphite. The quench protection via electrical dump to resistor grids is also interesting. I would have thought they might try to recover the power from the dump into some other storage, but I guess the safety criticality means they don't.
particle  accelertor  safety  beam  dump  design  engineering 
march 2019 by asteroza
AGNI
Using an ion beam on a fixed target, outputting neutrons. I wonder if the core setup could be used for an ADSR, or any other neutron spallation target need?
beam  target  fusion  reactor  power  generator  startup 
june 2018 by asteroza
PROCSIMA: Diffractionless Beamed Propulsion | NASA
Hybrid beamed propulsion rig, using favorable interactions between a neutral particle beam and a colinear laser to self focus and shepard the other.I wonder how applicable this is to conventional laser beam stuff (though the minimum beam strength probably stops anything less than a propulsion laser)
NASA  NIAC  beamed  propulsion  hybrid  neutral  particle  beam  laser  diffractionless 
april 2018 by asteroza
Phys. Rev. Lett. 116, 185003 (2016) - Enhanced Multi-MeV Photon Emission by a Laser-Driven Electron Beam in a Self-Generated Magnetic Field
Laser pumped gamma ray synchrotron radiation beam emitter, firing a laser on a plastic target within a mag field, causing electron zigzag and thus gamma ray lasing within the result plasma for a terawatt level pulsed beam
laser  pumped  gamma  ray  pulsed  beam 
november 2017 by asteroza
Echodyne | Metamaterials-Based Radar Technology
Using metamaterials, they've built up sub-half wavelength antenna arrays for a phased array radar at small scale, with spacing so small that they don't need expensive/heavy/powerful phase shifters to beam steer.
small  form  factor  metamaterial  antenna  phased  array  radar  UAV  drone  sense  avoid  hardware  electronics  devices  RF  beam  steering  Delicious 
november 2016 by asteroza
Transformis Inspire
Taking a cue from RV/camping trailer designs, this houseboat has a popout space underpinned by an expanding beam setup, so the pontoons sit wider after the interior space popouts deploy.
popout  living  space  variable  beam  houseboat  pontoon  boat  ship  vessel  recreation  vehicle  transportation  marine  Delicious 
december 2015 by asteroza
[1412.7581] Superluminal Spot Pair Events in Astronomical Settings: Sweeping Beams
A photonic boom, somewhat like a sonic boom actually. Different from cherenkov radiation.
photonic  boom  sweeping  laser  beam  photon  flash  optics  astronomy  superluminal  FTL  Delicious 
january 2015 by asteroza
Adaptive Fiber Array Technology | Optonicus
DARPA Excalibur laser program using these fiber laser modules, which have neat beam steering properties
DARPA  excalibur  intelligent  fiber  array  adaptive  optics  laser  module  research  technology  beam  steering  collimator  coherent  Delicious 
january 2015 by asteroza
CSIR - Council for Scientific and Industrial Research
Interesting potential for adaptive optics by directly manipulating a laser proper, rather than the following optics train.
control  technology  optics  adaptive  former  beam  laser  research  digital  LCD  Delicious 
september 2013 by asteroza
New approach assembles big structures from small interlocking pieces
This has good pictures of the X plates that makeup up a cuboct cell, apparently made from a carbon fiber wound stock that is sliced to make the X's.
reversibly  technology  fiber  engineering  science  rpinting  cuboct  interlocking  materials  carbon  3D  fabbing  assembled  cellular  plate  truss  research  composite  recyclable  structures  beam  lightweight  square  part  octet  chainmail  Delicious 
august 2013 by asteroza
Kymeta | Connected. Anywhere.
Using digitally switched resonators and a metamaterial surface, you gain the abilities of phased array without all the associated phased array parts, and solid state to boot.
satellite  technology  surface  RF  hardware  directional  subwavelength  communication  metamaterial  state  space  research  transmission  antenna  solid  forming  steering  active  beam  resonator  devices  electronics  Delicious 
august 2013 by asteroza
Airlight SA
Interesting lightweight pneumatic air beam structures.
structure  airbeam  Tensairity  pressurized  air  beam  lightweight  Switzerland  pneumatic  Delicious 
june 2013 by asteroza
Sciaky, Inc. | Electron Beam Welding | Direct Manufacturing | Additive Manufacturing.
Using electron beam welding experience, an electron beam metal fusion deposition manufacturing technique is interesting. But it sounds an awful lot like the electron beam gun welder is on a a 4 or 5 axis CNC arm?
fabber  FDM  metal  electron  3D  beam  additive  printer  Delicious 
march 2013 by asteroza
IEEE Xplore - Investigation of the Piezoelectric Effect as a Means to Generate X-Rays
Hey, look at that, a solid state x-ray source using all sorts of neat tricks to make it compact and on-off. I wonder if this could be used as the source for the beam in that clean fusion bomb...
accelerator  electron  health  medicine  source  portable  technology  research  science  materials  physics  generator  beam  X-Ray  xray  piezoelectric  state  solid  factor  form  small  compact  Delicious 
january 2013 by asteroza
Suitable Technologies
New Beam telepresence robot avatar. Nice overall design, has a charger dock that uses inductive charging so precise alignment or hard docking clamps are not needed. Still, it doesn't seem to have screen/camera height adjustment to work with sitting people at the remote site, and it doesn't seem to have autohoming features for the robot to return for self charge as they seem to expect the pilot to drive back (no SLAM map to guide the user back to the dock?).
devices  electronics  hardware  robot  avatar  telepresence  Texai  willow  garage  beam  wireless  charger  dock  Delicious 
august 2012 by asteroza
Meta Perception: Human Interface
I sort of like this. Embedded AR video and audio projectors sense user gesture actions to determine desired activity, then project video and sound onto existing surfaces for a person to interact with. Pick up a banana and stick it by your ear and mouth, and the system will think you are trying to make a phone call (Banana Phone!), or you open an empty pizza box you are sitting in front of, and the system interprets that you need a computer terminal so a desktop and keyboard are projected. By applying the interfaces over existing objects, you reduce the need for interactive terminals, so this is a push towards sustainability, provided such a system is ubiquitous.
invoked  computing  AR  projector  parametric  narrow  beam  speaker  ubiquitous  UI  GUI  interface  sustainability  green  future  gesture  analysis  Delicious 
november 2011 by asteroza
TeraDiode - High Power Diode Laser Technology, Metal Cutting and Laser Welding
Supposedly a rather large improvement on solid state laser diodes. LaserMotive and the beamed power rocket guys will love this, as will the military. Sharks and popcorn sold separately.
TeraDiode  MIT  solid  state  laser  research  direct  diode  wave  wavelength  beam  combining  Delicious 
july 2011 by asteroza
uBeam
Basically an ultrasonic spot beam transducer setup, firing a focused beam of ultrasound towards the receiver, which I assume is just a tweaked piezoelectric microphone setup, to receive acoustic energy and convert that to electricity. Claim 8V transferable (what is the wattage?) and below OHSA sound limits. If the receiver and transmitter use active guidance, you might be able to use a phased array for the transmitter.

Just this side of crazy enough to work...
uBeam  wireless  charging  power  beam  beaming  remote  recharge  charge  recharger  charger  ultrasound  ultrasonic  transducer  spot  Delicious 
june 2011 by asteroza
Masdar/WINDSTALK | Atelier DNA
I'm having a little trouble figuring out how you get the poles to lean back and forth in a steady wind. Artificially texture the pole surface to create turbulence maybe? Is there enough natural turbulence and wind speed change to ensure the pole swings enough to generate a practical amount of energy? I wonder if this could be built in a smaller form like some sort of rooftop astroturf module for building retrofits?
windstalk  piezoelectric  cantilever  beam  pole  wind  turbulence  power  generator  green  energy  high  density  footprint  alternative  Delicious 
october 2010 by asteroza
NASA - From Nothing, Something: One Layer at a Time
This might have application for structures than can handle having specific materials properties of a continuous melt metal, and for prevention of oxide formation, as well as the mentioned advanced composite structures.
NASA  EBF3  electron  beam  3D  printer  vacuum  fabber  fabbing  metal  melt  Delicious 
october 2009 by asteroza
Spectrum-splitting solar modules and Roadmap to 50% efficient Solar Cells
Interesting continuing research into the somewhat obvious ploy of using a optical spectrum splitter to separate light frequencies and send to them frequency optimized discrete solar cells, as a way to surmount the materials science problems of making stacked multijunction multispectrum optimized solar cells. If the light from the primary concentrator is being split by frequency, I wonder if you could do the trick of sending specific light bands left/right/down by using a double prism block? There is the overriding question of whether it would be cheaper to do the beam slitting before or after the concentrator?
high  efficiency  solar  cell  power  generator  materials  optics  science  research  technology  hardware  electronics  devices  green  energy  dichroic  prism  spread  spectrum  filter  light  beam  frequency  splitter  concentrator  concentrating  parallel  array  VHESC  Delicious 
october 2009 by asteroza

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