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The demonstration of an LED made from a single electrostatically doped carbon nanotube p–n junction with dramatically improved light-emission efficiency marks an important advance for carbon nanotube photonics.
Japan's new government has reversed its decision for research funding and angered many scientists in the process as budgets — including those for photonics research — get cut.
Researchers are proposing a new experiment that will probe fundamental aspects of the quantum vacuum by searching for highly elusive photon–photon scattering events.
The adoption of sophisticated phase-shift modulation schemes could make optical communication at 100 Gbit s−1 a reality within the next couple of years, but this is ultimately dependent on the deployment costs involved.
Micrometre-sized atomic vapour cells hosting robust entangled atomic states at room temperature offer a promising route to the realization of quantum photonic devices such as quantum gates and single-photon sources.
Optical parametric oscillators (OPOs) have now been realized in a CMOS-style process by exploiting nonlinear four-wave mixing. Such multiwavelength sources bring the prospect of ultrafast chip-to-chip optical data communications a step closer.
By combining the output from two synchronized light sources, single-cycle laser pulses at the telecommunications wavelength of 1.5 μm have been successfully generated. The achievement is set to benefit ultrafast optical spectroscopy and attosecond science.
The entanglement of squeezed light beams is critical for quantum optical applications, but has so far been achieved with only two light beams. Now, researchers have surpassed this restriction and achieved entanglement with three beams of different colours. They also report a finite loss level for disentanglement of one beam from the other two.
It has long been known that the optical resonances of ultrahigh-Q whispering gallery mode resonators can split under the influence of particle scattering. Now scientists have exploited this splitting to accurately determine particle sizes.
