Doctoral student bridges gap between electronics and optics
New chip can revolutionize the current data rate for processors using microwave photonics
(Press-News.org) According to the United Nations' telecommunications agency, 93% of the global population has access to a mobile-broadband network of some kind. With data becoming more readily available to consumers, there is also an appetite for more of it, and at faster speeds.
Ramy Rady, doctoral student in the Department of Electrical and Computer Engineering at Texas A&M University, is working with Dr. Kamran Entesari, his faculty advisor and professor, and Dr. Christi Madsen, professor, to design a chip that can revolutionize the current data rate for processors and technologies such as smartphones, laptops, etc. Dr. Sam Palermo, professor, is also involved with the project.
Photons are very fast - moving at the speed of light. By contrast, electrons move much slower at about 2,200 kilometers per second, which is less than 1% of the speed of light. By integrating photonic structures onto a silicon substrate by way of optics, Rady is taking advantage of the speed that photons provide while utilizing the features of existing electronic CMOS (Complementary Metal Oxide Semiconductor) technology to make silicon photonic integrated circuits.
Silicon photonic integrated circuits consume less power and generate less heat than conventional electronic circuits, which allows for an increase in data transmission. Previous work in this area was only conducted using optical processing. Rady and his team are moving toward the use of microwave photonics, which is a branch of optics that focuses on improving the quality of microwave signals using photonic structures. The advantage to Rady's project over all previous solutions is its small size and high-speed operation, i.e. frequency and data rates.
"My prototype chip operates from 25 to 40 gigahertz, creating four channels each of a 5 gigahertz bandwidth," Rady said. "This chip operates at a higher speed with a higher data rate than the previous generation of chips which relied on optical processing. The new chip is capable of reaching nearly five times the bandwidth compared to a contemporary cell phone."
Rady explained that the motion of electrons is limited, and subsequently, the quality of energy that is sent and stored to your phone, for example, is also limited. This is where the integration of photons comes into play.
This project, which received funding from the National Science Foundation, has been featured in two papers published by Rady.
[Attachments] See images for this press release:
ELSE PRESS RELEASES FROM THIS DATE:
Since early 2019, researchers have been recording and analysing marsquakes as part of the InSight mission. This relies on a seismometer whose data acquisition and control electronics were developed at ETH Zurich. Using this data, the researchers have now measured the red planet's crust, mantle and core - data that will help determine the formation and evolution of Mars and, by extension, the entire solar system.
Mars once completely molten
We know that Earth is made up of shells: a thin crust of light, solid rock surrounds a thick mantle of heavy, viscous rock, which in turn envelopes a core consisting mainly of iron and ...
Lithium-ion batteries (LIBs), which are a renewable source of energy for electrical devices or electric vehicles, have attracted much attention as the next-generation energy solution. However, the anodes of LIBs in use today have multiple inadequacies, ranging from low ionic electronic conductivity and structural changes during the charge/discharge cycle to low specific capacity, which limits the battery's performance.
In search of a better anode material, Dr. Jun Kang of Korea Maritime and Ocean University, along with his colleagues from Pusan National University, Republic of Korea, END ...
July 22, 2021 - Early in the COVID-19 pandemic, more than 40 percent of nurses and other health care workers had risks associated with an increased likelihood of burnout, reports a survey study in the August issue of the American Journal of Nursing (AJN). The journal is published in the Lippincott portfolio by Wolters Kluwer.
The study identifies risk factors for poor well-being as well as factors associated with greater resilience - which may reduce the risk of burnout for hands-on care providers, according to the new research by Lindsay Thompson Munn, RN, PhD, and colleagues of a North Carolina healthcare system. They write, "The insights ...
The University of Surrey has built an artificial intelligence (AI) model that identifies chemical compounds that promote healthy ageing - paving the way towards pharmaceutical innovations that extend a person's lifespan.
In a paper published by Nature Communication's Scientific Reports, a team of chemists from Surrey built a machine learning model based on the information from the DrugAge database to predict whether a compound can extend the life of Caenorhabditis elegans - a translucent worm that shares a similar metabolism to humans. The worm's shorter lifespan gave the researchers the opportunity to see the impact of the chemical compounds.
The AI singled ...
Houston Methodist Neurological Institute researchers from the department of neurosurgery shrunk a deadly glioblastoma tumor by more than a third using a helmet generating a noninvasive oscillating magnetic field that the patient wore on his head while administering the therapy in his own home. The 53-year-old patient died from an unrelated injury about a month into the treatment, but during that short time, 31% of the tumor mass disappeared. The autopsy of his brain confirmed the rapid response to the treatment.
"Thanks to the courage of this patient and his family, we were able to test and verify the potential effectiveness of the first noninvasive therapy ...
As a fourth-generation cattle farmer, Jared Decker knows that cattle suffer from health and productivity issues when they are taken from one environment -- which the herd has spent generations adapting to -- to a place with a different climate, a different elevation or even different grass. But as a researcher at the University of Missouri, Decker also sees an opportunity to use science to solve this problem, both to improve the welfare of cattle and to plug a leak in a nearly $50 billion industry in the U.S.
"When I joined MU in 2013, I moved cattle from a family farm in New Mexico to my farm here in Missouri," said Decker, an associate professor and Wurdack Chair in Animal Genetics at the College of Agriculture, Food and Natural Resources. "New Mexico is hot and dry, and Missouri is ...
A computational analysis of COVID-19 tests suggests that, in order to minimize the number of infections in a population, the amount of testing matters more than the sensitivity of the tests that are used. Philip Cherian and Gautam Menon of Ashoka University in Sonipat, India, and Sandeep Krishna of the National Centre for Biological Sciences TIFR, Bangalore, India, present their findings in the open-access journal PLOS Computational Biology.
Different states in India use different mixes of two main tests for COVID-19: a very sensitive reverse-transcriptase polymerase-chain-reaction (RT-PCR) test and a less sensitive rapid antigen test. Traditional thinking holds that an all-RT-PCR approach ...
The neurotransmitters GABA and glutamate have complementary roles -- GABA inhibits neurons, while glutamate makes them more active. Published 22nd July in PLOS Biology, researchers led by Roi Cohen Kadosh and George Zacharopoulos from the University of Oxford show that levels of these two neurotransmitters in the intraparietal sulcus of the brain can predict mathematics ability. The study also found that the relationships between the two neurotransmitters and arithmetic fluency switched as children developed into adults.
Levels of brain excitement/inhibition are thought to be related to learning, especially during critical periods. However, little is known about how they are related to complex learning that can take place over decades. To address this issue, the researchers ...
For the first time, a team of international scientists have proven that cockatoos, an iconic Australian bird species, learn from each other a unique skill - lifting garbage bin lids to gather food. The world-first research published today in Science, confirms that cockatoos spread this novel behavior through social learning. Led by Barbara Klump and Lucy Aplin (Max Planck Institute of Animal Behavior), along with John Martin (Taronga Conservation Society) and Richard Major (Australian Museum), the team have shown that this behavior by cockatoos is actually ...
Based on a dozen earthquakes detected on Mars by the SEIS very broadband seismometer, developed in France, the international team of NASA's InSight mission reveals the internal structure of Mars. The three studies published July 23 in Science, involving many co-authors from French institutions and laboratories, including CNRS, the Institut de Physique du Globe de Paris, Université de Paris, and supported by CNES and ANR, reveal, for the first time and thanks to the analysis of seismic waves, reflected and modified by these internal interfaces, an estimate of the size of the core, the thickness of the crust and the mantle structure. This is the first ...
LAST 30 PRESS RELEASES:
[Press-News.org] Doctoral student bridges gap between electronics and optics
New chip can revolutionize the current data rate for processors using microwave photonics