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Berkeley Lab Researchers Create Nanoscale Waveguide for Future Photonics

By Guest PostJune 3, 2011Sciencebio medical sensing, electromagnetic waves, guy bartal, hybrid plasmon polariton, microprocessors, nanoscale lasers, nanoscale photonic applications, nanoscale waveguides, near field scanning optical microscopy, next generation on chip optical communication systems, nsom, optical computing, photonic circuits, photonic devices, plasmons, quasiparticle, rupert oulton, semiconductor, silicon on insulator platform, soi, spp, surface plasmon polariton, volker sorger, xiang zhang, xiaobo yin, yuan wang, ziliang ye

The creation of a new quasiparticle called the “hybrid plasmon polariton” may throw open the doors to integrated photonic circuits and optical computing for the 21^st century. Researchers with the U.S. Department of Energy (DOE)’s Lawrence Berkeley National Laboratory (Berkeley Lab) have demonstrated the first true nanoscale waveguides for next generation on-chip optical communication systems.

“We have directly demonstrated the nanoscale waveguiding of light at visible and near infrared frequencies in a metal-insulator-semiconductor device featuring low loss and broadband operation,” says Xiang Zhang, the leader of this research. “The novel mode design of our nanoscale waveguide holds great potential for nanoscale photonic applications, such as intra-chip optical communication, signal modulation, nanoscale lasers and bio-medical sensing.” (more…)

Scientists Build the World’s First Anti-laser

More than 50 years after the invention of the laser, scientists at Yale University have built the world’s first anti-laser, in which incoming beams of light interfere with one another in such a way as to perfectly cancel each other out. The discovery could pave the way for a number of novel technologies with applications in everything from optical computing to radiology.

Conventional lasers, which were first invented in 1960, use a so-called “gain medium,” usually a semiconductor like gallium arsenide, to produce a focused beam of coherent light-light waves with the same frequency and amplitude that are in step with one another. (more…)

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Berkeley Lab Researchers Create Nanoscale Waveguide for Future Photonics

Scientists Build the World’s First Anti-laser