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Defects in thin molybdenum sulfide layers, generated by bombardment with helium ions, can serve as nano-light sources for quantum technologies. Image: Christoph Hohmann / MCQST

Light in the nanoworld

A team of international scientists led by Alexander Holleitner and Jonathan Finley, physicists at the Technical University of Munich (TUM), has successfully placed light...
Stanford researchers are developing a nanoscale photon diode that could contribute to technologies that run on light rather than electricity. (Image credit: Getty Images)

Replacing electricity with light

Researchers are designing a nanoscale photon diode – a necessary component that could bring us closer to faster, more energy-efficient computers and communications that replace electricity with light.
Scientists develop camera to see polarised light

Scientists develop camera to see polarised light

Polarization describes the path along which light’s electric field vector oscillates. An essential quality of electromagnetic radiation, polarization is often omitted in its mathematical...
Scientists discovered new properties of light

Scientists discovered new properties of light

Recently, scientists came to know that light can be twisted. This property of light is called angular momentum. Beams with highly structured angular momentum...
Fig. Photo-induced ultrafast active ion transport through graphene oxide membranes (Image by GUO Wei)

Light could drive ions in graphene oixde membranes

Layered graphene oxide membranes (GOM) with densely packed sub-nanometer-wide lamellar channels show exceptional ionic and molecular transport properties. Mass and charge transport in existing...
Orbital angular momentum Multiplexer/Demultiplexer The multiplexing/demultiplexing module fabricated (a,d) employs a property of light called the "optical vortex" to transmit/receive multiple signals simultaneously through a shared optical medium. The required light waves with different optical vortexes are generated using a combination of a star coupler (b) and an optical-vortex generator (c).

Unlocking the untapped potential of light in optical communications

In our communication-centered era, Internet traffic has been expanding rapidly. The huge measures of information that travels through the Internet are empowered by immense...
Scientists built a machine that breaks the normal rules of light

Scientists built a machine that breaks the normal rules of light

Researchers from the National Physical Laboratory (NPL) have investigated how light can be controlled in an optical ring resonator, a tiny device that can...
Rice University researchers studying the effect of light on pinwheels (left) and single C-shaped (right) gold nanoparticles have found an unknown effect on single particles. Stimulating the particles just right produced a near-perfect modulation of the light they scatter via their plasmonic response. The discovery may become useful in the development of chips for next-generation optical components for computers and antennas. Courtesy of the Link Research Group

Light triggers gold in unexpected way

Rice scientists surprisingly made a discovery that suggests that exciting the microscopic particles just right produced a near-perfect modulation of the light they scatter. This...
Researchers shed light on a 150-year old mystery of Light

Researchers shed light on a 150-year old mystery of Light

Light is composed of photons and photons have momentum. But, how light interacts with the matter has remained a mystery for close to 150 years....

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