metamaterials – Shamskm: A site to exchange knowledge and solutions

New Design Tool for Metamaterials

By Guest PostJune 3, 2015Sciencearumugam manthiram, bekaempfung von covid19, berkeley lab, bernhard schoelkopf, coronotes, goodenough lab, haim suchowski, junsuk rho, kevin obrien, krankheit covid 19, metamaterials, neue app, refractive index, xiang zhang, xiaobo yin

Berkeley Lab Study Shows How to Predict Metamaterial Nonlinear Optical Properties

Metamaterials – artificial nanostructures engineered with electromagnetic properties not found in nature – offer tantalizing future prospects such as high resolution optical microscopes and superfast optical computers. To realize the vast potential of metamaterials, however, scientists will need to hone their understanding of the fundamental physics behind them. This will require accurately predicting nonlinear optical properties – meaning that interaction with light changes a material’s properties, for example, light emerges from the material with a different frequency than when it entered. Help has arrived. (more…)

Bottling Up Sound Waves

By Guest PostNovember 1, 2014Scienceartificial nanoconstructs, astana process, berkeley lab, deep brain waves, diffraction, guarantor countries, hassan rouhani, john mcafee‏, metamaterials, news conference, ohrdrufer woelfin, old bull, peng zhang, recep tayyip erdogan, reflection, sound waves, tongcang li, xiang zhang, young bull

Acoustic Bottle Beams from Berkeley Lab Hold Promise for Imaging, Cloaking, Levitation and Other Apps

There’s a new wave of sound on the horizon carrying with it a broad scope of tantalizing potential applications, including advanced ultrasonic imaging and therapy, and acoustic cloaking, levitation and particle manipulation. Researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) have developed a technique for generating acoustic bottles in open air that can bend the paths of sound waves along prescribed convex trajectories. (more…)

‘Life as Research Scientist’: Romain Fleury, Engineer

By BlogArenaFebruary 3, 2014Education, Interview, Scienceelectromagnetic waves, matter waves, metamaterials, natural building blocks, quantum particle, romain fleury, wave physics, wireless communication

Due to deep passion for physics, Romain Fleury, after completion of his engineering diploma in France, joined the research group of Prof. Andrea Alù at the University of Texas at Austin, where he is currently pursuing a Ph.D degree. His research focuses on metamaterials, a new branch of science and technology that is making its way to maturity. (more…)

Berkeley Lab Researchers Use Metamaterials to Observe Giant Photonic Spin Hall Effect

By Guest PostApril 1, 2013Scienceantenna configurations, arm configuations, artificial nanoconstructs, berkeley lab, ccd, charge coupled device, doe, electron, future of computing, geometry parameters, gold nanoantennas, hall effect, image, junsuk rho, magnetic moment, metamaterials, optical properties, photonic spin, physical motion, physicist edwin hall, quantized angular momentum, quantum measurements, quantum mechanics, scanning electron microscopy, spin, xiang zhang, xiaobo yin, yuan wang, ziliang ye

Researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) have once again demonstrated the incredible capabilities of metamaterials – artificial nanoconstructs whose optical properties arise from their physical structure rather than their chemical composition. Engineering a unique two-dimensional sheet of gold nanoantennas, the researchers were able to obtain the strongest signal yet of the photonic spin Hall effect, an optical phenomenon of quantum mechanics that could play a prominent role in the future of computing.

“With metamaterial, we were able to greatly enhance a naturally weak effect to the point where it was directly observable with simple detection techniques,” said Xiang Zhang, a faculty scientist with Berkeley Lab’s Materials Sciences Division who led this research. “We also demonstrated that metamaterials not only allow us to control the propagation of light but also allows control of circular polarization. This could have profound consequences for information encoding and processing.” (more…)

Exeter Physicist Bends Light Waves on Surfboards

By Guest PostJuly 31, 2012Scienceaerospace industry, electromagnetic radiation, invisibility cloaks, light waves, metamaterials, pseudo atoms

A University of Exeter scientist is bringing together his passions for Physics and surfing with research that could inspire a host of new technologies. Dr Matt Lockyear is using foam from inside surfboards to make materials that can manipulate light.

Scientists across the globe are trying to develop materials that can refract light to create ‘invisibility cloaks’, which are of particular interest to the aerospace industry. ‘Invisibility cloaking’ means building properties into a material that allow the device to guide light waves around an object, making it invisible. (more…)

Tag Archives: metamaterials

New Design Tool for Metamaterials

Bottling Up Sound Waves

‘Life as Research Scientist’: Romain Fleury, Engineer

Berkeley Lab Researchers Use Metamaterials to Observe Giant Photonic Spin Hall Effect

Exeter Physicist Bends Light Waves on Surfboards