Quantum sensor for measuring the intensity, polarization and wavelength of light. Free Technical Library News

NEWS OF SCIENCE AND TECHNOLOGY, NOVELTY IN ELECTRONICS
Free technical library / timeline

Quantum sensor for measuring the intensity, polarization and wavelength of light

05.06.2022

A team of researchers from Yale University and the University of Texas at Dallas have created a tiny quantum optical sensor that is about one-thousandth the size of a human hair. But, despite such a small size, this sensor has the widest possibilities, using the quantum properties of electrons, it is able to simultaneously measure the intensity, polarization and wavelength of light. The creation of such a universal sensor will allow in the future to make significant breakthroughs in the fields of astronomy, health care and remote sensing.

In recent years, scientists have found that twisting or otherwise deforming certain materials can, in some cases, give those materials certain properties that they do not normally possess. In this case, the scientists also used such a method, applying it to a two-layer graphene, which was called TDBG (twisted double bilayer graphene). Twisting graphene breaks the symmetry of its crystal lattice and endows graphene with completely new properties.

Such a change in the properties of graphene led to the fact that the so-called anomalous photovoltaic effect (APVE) began to strongly manifest itself in curved graphene. This effect consists in the conversion of light into an electric current, the magnitude of which depends proportionally on the intensity, polarization and wavelength of the light. Moreover, some of the parameters of this effect can be "tuned" by voltage applied to the graphene.

Next, the scientists created a specialized artificial neural network, which was trained on data received from a graphene sensor, which was irradiated with light with various parameters. And after such training, the neural network became able to "decode" the sensor readings, giving reliable and accurate results for each of the light parameters mentioned above.

The small dimensions of the new intelligent sensor, which alone can replace rather complex, bulky and expensive devices, will make it possible in the future to create completely new types of astronomical instruments, medical diagnostic equipment, vision systems for autonomous vehicles and aircraft, etc. In addition, the work carried out by scientists opens up a whole new area in which "deformed" materials will act as non-linear optical components.

<< Back: Teleportation repeater for quantum internet 06.06.2022

>> Forward: Offshore hydrogen production 05.06.2022

Latest news of science and technology, new electronics:

Energy from space for Starship 08.05.2024

Producing solar energy in space is becoming more feasible with the advent of new technologies and the development of space programs. The head of the startup Virtus Solis shared his vision of using SpaceX's Starship to create orbital power plants capable of powering the Earth. Startup Virtus Solis has unveiled an ambitious project to create orbital power plants using SpaceX's Starship. This idea could significantly change the field of solar energy production, making it more accessible and cheaper. The core of the startup's plan is to reduce the cost of launching satellites into space using Starship. This technological breakthrough is expected to make solar energy production in space more competitive with traditional energy sources. Virtual Solis plans to build large photovoltaic panels in orbit, using Starship to deliver the necessary equipment. However, one of the key challenges ... >>

New method for creating powerful batteries 08.05.2024

With the development of technology and the expanding use of electronics, the issue of creating efficient and safe energy sources is becoming increasingly urgent. Researchers at the University of Queensland have unveiled a new approach to creating high-power zinc-based batteries that could change the landscape of the energy industry. One of the main problems with traditional water-based rechargeable batteries was their low voltage, which limited their use in modern devices. But thanks to a new method developed by scientists, this drawback has been successfully overcome. As part of their research, scientists turned to a special organic compound - catechol. It turned out to be an important component that can improve battery stability and increase its efficiency. This approach has led to a significant increase in the voltage of zinc-ion batteries, making them more competitive. According to scientists, such batteries have several advantages. They have b ... >>

Alcohol content of warm beer 07.05.2024

Beer, as one of the most common alcoholic drinks, has its own unique taste, which can change depending on the temperature of consumption. A new study by an international team of scientists has found that beer temperature has a significant impact on the perception of alcoholic taste. The study, led by materials scientist Lei Jiang, found that at different temperatures, ethanol and water molecules form different types of clusters, which affects the perception of alcoholic taste. At low temperatures, more pyramid-like clusters form, which reduces the pungency of the "ethanol" taste and makes the drink taste less alcoholic. On the contrary, as the temperature increases, the clusters become more chain-like, resulting in a more pronounced alcoholic taste. This explains why the taste of some alcoholic drinks, such as baijiu, can change depending on temperature. The data obtained opens up new prospects for beverage manufacturers, ... >>

Major risk factor for gambling addiction 07.05.2024

Computer games are becoming an increasingly popular form of entertainment among teenagers, but the associated risk of gaming addiction remains a significant problem. American scientists conducted a study to determine the main factors contributing to this addiction and offer recommendations for its prevention. Over the course of six years, 385 teenagers were followed to find out what factors may predispose them to gambling addiction. The results showed that 90% of study participants were not at risk of addiction, while 10% became gambling addicts. It turned out that the key factor in the onset of gambling addiction is a low level of prosocial behavior. Teenagers with a low level of prosocial behavior do not show interest in the help and support of others, which can lead to a loss of contact with the real world and a deepening dependence on virtual reality offered by computer games. Based on these results, scientists ... >>

Traffic noise delays the growth of chicks 06.05.2024

The sounds that surround us in modern cities are becoming increasingly piercing. However, few people think about how this noise affects the animal world, especially such delicate creatures as chicks that have not yet hatched from their eggs. Recent research is shedding light on this issue, indicating serious consequences for their development and survival. Scientists have found that exposure of zebra diamondback chicks to traffic noise can cause serious disruption to their development. Experiments have shown that noise pollution can significantly delay their hatching, and those chicks that do emerge face a number of health-promoting problems. The researchers also found that the negative effects of noise pollution extend into the adult birds. Reduced chances of reproduction and decreased fertility indicate the long-term effects that traffic noise has on wildlife. The study results highlight the need ... >>

Random news from the Archive

Why Men Don't Like Going to Doctors 14.06.2016

Doctors from Orlando (USA) conducted a survey, the results of which compiled a list of the most popular excuses that men use to reschedule their next scheduled visit to the doctor. Today, urologists Jamin Brahmbhatt and Sijo Parekattil from the Clermont Clinic, Florida (USA) are going on a special tour of the United States, during which they are going to talk about why it is important not to skimp on visits to doctors and undergo preventive examinations in a timely manner.

Doctors in Orlando have compiled a ranking of the most popular excuses their patients use to cancel an appointment. The most popular phrase is recognized that in the near future a man will be extremely busy. Further, the strong half admitted that they were afraid to find out that something was wrong with her health. The top three most common answers are closed by the recognition that some medical manipulations carried out during the examination, for example, palpation of the prostate, are shameful.

Jamin Brambhatt said that he often hears something like this. On June 9, he and his colleague Sijo Parekattil will embark on a ten-day science and education tour, during which they intend to educate the public about men's health issues.

"Men can spend 34 hours a day playing golf, or watching football every week, finally taking a trip to Las Vegas with their buddies, but they can't spare 90 minutes a year to get tested? Is that inexcusable ", - said the doctor and social activist Yamin Brambhatt.

Bulletins with recommendations and information about why it is important to undergo preventive examinations in a timely manner will be distributed to everyone who wishes. "Last year we reached about 450 million people, including podcasts, evening radio broadcasts and face-to-face meetings. This year we would like to reach even more people," the authors of the project said.

Doctors note that the average life expectancy of men is at least 5 years shorter than that of women. In addition, among the 10 most common causes of death in the US, 9 are most specific to men.

“These statistics are due to the fact that women in general are much more attentive to their health than men,” said Dr. Brambhatt. “We often use the analogy between our body and cars. Men spend a lot of time on preventive maintenance of their cars: tuning or an oil change, but often for some reason we don't give the same care to our bodies. We have to change that mindset."

See full Archive of science and technology news, new electronics

All languages of this page

Home page | Library | Articles | Website map | Site Reviews