Engineering
Additive manufacturing techniques used to produce metal alloys have gained popularity due to their ability to be fabricated in complex shapes for use in various engineering applications. Yet the majority of studies conducted ...
Oct 3, 2022
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53
Engineering
A trio of researchers from Heriot-Watt University, University Paul Sabatier and the University of Sussex has developed an AI-based device equipped with a laser that can be used to shoot and kill roaches automatically. In ...
Robotics
Cornell University researchers have installed electronic "brains" on solar-powered robots that are 100 to 250 micrometers in size—smaller than an ant's head—so that they can walk autonomously without being externally ...
Sep 21, 2022
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128
Engineering
Sandblasting—that was yesterday. Laser beams can now clean and structure surfaces more precisely and cost-effectively and in more environmentally friendly ways than conventional systems. The Fraunhofer Institute for Material ...
Sep 21, 2022
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Engineering
Lasers have become a major part of our day-to-day lives.
Sep 12, 2022
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385
Engineering
Researchers from Skoltech and MEPhI have devised a laser polishing technique that effectively removes both surface roughness and subsurface pores in intricately shaped metal parts manufactured with a 3D printer. Described ...
Sep 7, 2022
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8
Engineering
What goes on inside planets like Neptune and Uranus? To find out, an international team headed by the Helmholtz-Zentrum Dresden-Rossendorf (HZDR), the University of Rostock and France's École Polytechnique conducted a novel ...
Sep 2, 2022
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98
Engineering
Compared with general additive manufacturing (AM) methods, Multi-material additive manufacturing (MMAM) enables a higher level of design freedom, such as integrating materials, structure and function to achieve tailorable ...
Aug 30, 2022
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5
Engineering
An example of hybrid technology in its purest form has been developed and built by the Fraunhofer ILT for the DVS research project KoaxHybrid. In Aachen, the institute engineers have developed a new optical system with glass ...
Aug 30, 2022
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4
Engineering
Whether in photosynthesis or in a photovoltaic system: If you want to use light efficiently, you have to absorb it as completely as possible. However, this is difficult if the absorption is to take place in a thin layer of ...
Aug 29, 2022
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A laser is a device that emits light (electromagnetic radiation) through a process called stimulated emission. The term laser is an acronym for light amplification by stimulated emission of radiation. Laser light is usually spatially coherent, which means that the light either is emitted in a narrow, low-divergence beam, or can be converted into one with the help of optical components such as lenses. Typically, lasers are thought of as emitting light with a narrow wavelength spectrum ("monochromatic" light). This is not true of all lasers, however: some emit light with a broad spectrum, while others emit light at multiple distinct wavelengths simultaneously. The coherence of typical laser emission is distinctive. Most other light sources emit incoherent light, which has a phase that varies randomly with time and position.
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