News tagged with photonic circuit

'Metamaterials,' quantum dots show promise for new technologies

(Phys.org) -- Researchers are edging toward the creation of new optical technologies using "nanostructured metamaterials" capable of ultra-efficient transmission of light, with potential applications including ...

Nanotechnology / Nanophysics

created May 24, 2012 | popularity 5 / 5 (7) | comments 1 | with audio podcast

Two stopped light pulses interact with each other

(Phys.org) -- For the first time, physicists have experimentally demonstrated the interaction of two motionless light pulses. Because the stopped light pulses have a long interaction time, it increases the ...

Physics / General Physics

created May 08, 2012 | popularity 4.1 / 5 (16) | comments 8 | with audio podcast feature

An optical diode made with silicon technology can be used for quantum information

(PhysOrg.com) -- Transistors, resistors, capacitors, and diodes. All of these are examples of common electrical circuit elements that can be found on a computer motherboard, for instance. Billions of transistors ...

Physics / Optics & Photonics

created Mar 23, 2012 | popularity 4.6 / 5 (5) | comments 1 | with audio podcast

First proof of single atomic layer material with zero electrical resistance

A research group at the NIMS International Center for Materials Nanoarchitectonics (MANA) has proved that the electrical resistance of a metal single atomic layer on a silicon surface becomes zero by superconductivity.

Physics / Superconductivity

created Nov 24, 2011 | popularity 5 / 5 (7) | comments 8

A passive alignment method offers an easy solution for fabricating integrated photonic circuits

The rise of computers in past decades was made possible largely thanks to the invention of the integrated circuit, a device that combines all necessary electronic components onto a single chip. In a similar ...

Physics / Optics & Photonics

created Nov 17, 2011 | popularity 5 / 5 (2) | comments 0

Switching light on and off - with photons

(PhysOrg.com) -- Cornell researchers have demonstrated that the passage of a light beam through an optical fiber can be controlled by just a few photons of another light beam.

Physics / Optics & Photonics

created Nov 09, 2011 | popularity 4.9 / 5 (7) | comments 6 | with audio podcast

Quantum computer components 'coalesce' to 'converse'

(PhysOrg.com) -- If quantum computers are ever to be realized, they likely will be made of different types of parts that will need to share information with one another, just like the memory and logic circuits ...

Physics / Quantum Physics

created Oct 26, 2011 | popularity 4.7 / 5 (6) | comments 2 | with audio podcast

Researchers pioneer novel technique to make plasmonic nanogap arrays

In the quest to exploit unique properties at the nanoscale, scientists at Stevens Institute of Technology have developed a novel technique for creating uniform arrays of metallic nanostructures. A team of faculty and students ...

Nanotechnology / Nanophysics

created Sep 06, 2011 | popularity not rated yet | comments 0 | with audio podcast

A silicon chip with integrated laser and optical grating offers new possibilities for telecommunications

(PhysOrg.com) -- Silicon is an ideal platform for integrated photonic circuits because the material is cheap and readily available. Silicon chips with an integrated laser source capable of emitting light at ...

Physics / Optics & Photonics

created Aug 09, 2011 | popularity 5 / 5 (6) | comments 1 | with audio podcast

All-optical quantum computation, step 1: A controlled-NOT photonic gate

(PhysOrg.com) -- The often counterintuitive quantum world of superposition, entanglement, and tunneling can greatly enhance applications as diverse as communication, information processing, and precision measurement. ...

Physics / Quantum Physics

created Jun 24, 2011 | popularity 4 / 5 (6) | comments 0 | with audio podcast feature

Silicon waveguide that converts polarization mode of light could speed up photonic circuits operation

Silicon is the dominant material for the fabrication of integrated circuits and is also becoming a popular material for making photonics circuits -- miniaturized circuits that use light instead of electronic ...

Physics / Optics & Photonics

created Jun 09, 2011 | popularity not rated yet | comments 0

Nanoscale waveguide for future photonics

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 21st century. Researchers with the U.S. Department ...

Physics / Optics & Photonics

created May 31, 2011 | popularity 5 / 5 (4) | comments 1 | with audio podcast

Silicon, nitride LEDs integrated onto a single chip for one-bit digital counters

Silicon-based semiconductor devices dominate the microelectronics industry and are used for the fabrication of high density integrated circuits comprising of memory and processing devices. However, silicon ...

Technology / Semiconductors

created Mar 25, 2011 | popularity 3 / 5 (1) | comments 0

Tiny 'on-chip detectors' count individual photons

A team of researchers has integrated tiny detectors capable of counting individual photons on computer chips. These detectors, called "single-photon avalanche diodes (SPAD)," act like mini Geiger counters, producing a "tick" ...

Physics / General Physics

created Mar 17, 2011 | popularity 4 / 5 (1) | comments 0

Scientists report first monolithic terahertz solid-state transceiver

Sandia National Laboratories researchers have taken the first steps toward reducing the size and enhancing the functionality of devices in the terahertz (THz) frequency spectrum.

Physics / Optics & Photonics

created Jun 29, 2010 | popularity 4.7 / 5 (18) | comments 0 | with audio podcast