The new device provides a stable, bright single photon source at room temperature; one of the fundamental elements for safe and fast calculations in optical applications.
The study was published in the journal Nature Nanotechnology; Marko Loncar, an assistant professor of electrical engineering at Harvard University, said that although the beam has luminescent defects, the physical properties of the single photon source on the diamond can be achieved by diamond nanostructured and embedded diamond nanowires. Greatly improved.
After learning how to use the electron spin and internal angular momentum associated with the gemstone nitrogen vacancy color, scientists began to study the properties of natural diamond. Quantum states can be initialized and measured by the use of light.
The color center completes "communication and communication" by transmitting and absorbing quantum. The quantum flow from the color center provides a conduit for the resulting information; this makes quantum control, acquisition, and storage important for any form of communication or computation. However, effectively gathering quantum is not an easy task because the color center is embedded in the depth of the diamond.
“The main problem before us is that if you want to connect a color center and apply it to a real-world application, you must find the part of the color center that is lost in the process of launching and acquiring quantum. The missing part is positive. It is the color core in the micro-nano world and the connection between fiber optics and light mirrors in the macro world," Loncar said.
Nano-diamond wires provide a more natural and efficient interface solution for exploring individual color centers; this device brightens the color center and enhances the sensitivity of the color center. The resulting enhanced optical properties greatly enhance the efficiency of photon collection compared to natural diamond devices.
Tom Babinec, a graduate student and project collaborator at SEAS, said: "This nanowire device is capable of directing the emitted quantum to a convenient way and state of research."
In addition, scientists have designed diamond nanowires to solve some of the problems in the "National Advanced System" project, such as fluorescent dye molecules, quantum dots and carbon nanotubes; because the device is easy to replicate and can be integrated into various nanometers. In the processing of materials, its research prospects are very broad.
Researchers use top-down nanofabrication technology to embed color centers in a variety of processing structures; by creating large device arrangements, quantum networks and quantum systems based on parallel device integration and processing will become more real-world.
According to Loncar, the device is an important advancement in research that has made nanotechnology a step closer to practical optical systems. With these synthetic nanodiamonds, we are likely to develop more advanced diamond equipment and systems in quantum and quantum technology as well as sensing and imaging technologies in the future.
The above research was supported and sponsored by the National Science Foundation NSF, the Harvard University Nanoscience Engineering Center, the US Department of Defense Advanced Research Projects Agency, and the National Defense Science and Engineering Research Scholarship. All related equipment is manufactured by CNS, Harvard University Nanosystems Center. (Compiled from Science Daily; translation: Wang Xian)
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