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    Home > Biochemistry News > Biotechnology News > Flu or cold? A home smart device can help you

    Flu or cold? A home smart device can help you

    • Last Update: 2023-02-03
    • Source: Internet
    • Author: User
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    made of germanium.
    These may have a bigger
    impact on your future than you think.

    Some people do things so smart and difficult that it's hard to see what they might have to do with you and me in this world, so we just shrug our shoulders
    But this is usually the wrong reaction

    What if you had a simple gadget at home that could tell you why you felt so bad?

    "Our microresonators are 100 times
    better than previous resonators used in the longwave infrared spectrum.

    What if this little device could detect in a short period of time whether you had the coronavirus or flu, or even find out that you have diabetes without your knowledge? The device can solve all these problems without requiring you to go to a doctor or lab

    Better storage of light

    This technology could become a reality in a few years, and electrical engineers were among those who created this gadget, which contains a key component
    known as the Whispering Gallery Mode microresonator.

    New technologies are providing better optical sensors, which are important for electronics, including devices
    that use light to analyze chemicals.

    "We have built the lowest-loss whispered corridor mode microresonator
    for longwave infrared spectroscopy.
    Because longwave infrared spectroscopy provides clear information about chemicals, it opens up new possibilities for sensing applications," says
    researcher Dingding Ren from the Department of Electronic Systems at the Norwegian University of Science and Technology (NTNU).

    We will discuss in detail what a microresonator
    is later in the article.
    But first back to Ren
    He and his colleagues have developed a new whispering gallery-mode microresonator that can store specific wavelengths of light
    in resonance for longer.

    "Our microresonators are about 100 times better than previous resonators used for longwave infrared spectroscopy," Dingding Ren said
    "It can retain light up to 100 times longer than previous versions, which amplifies the internal light field and makes nonlinear processes easier, such as the generation
    of frequency combs.

    Huge opportunities have been created

    More efficient storage of light waves in the infrared portion of the spectrum is good news for several new technologies, particularly for particle sensing and spectrochemistry identification, which can analyze gas/fluid samples to check for viruses, bacteria, and other potentially harmful substances

    The new microresonators mean scientists can use these devices to develop broadband frequency combs
    in the longwave infrared spectrum.
    What could these be?

    A frequency comb is a laser light source whose spectrum consists of a series of discrete, equidistant frequency lines
    They can be found in many places, such as your GPS, atomic clocks, and fiber optic devices
    used in phones and computers.
    If there is a broadband frequency comb in the longwave infrared spectrum, the technique also opens the door
    to analyzing several chemicals simultaneously.

    "When it comes to measuring longwave infrared spectroscopy, this technology is still in
    its infancy.
    But our improvements make it possible to identify several different chemicals
    in real time in the near future.

    Such spectrometers already exist, like the Fourier transform infrared interferometer, but they are too big and expensive for hospitals and institutions with large budgets to afford.

    Other, slightly simpler machines may be able to analyze some chemicals, but not many at the same time—unlike what is possible with new technologies

    Ren works closely with
    Professor David Burghoff of the University of Notre Dame and his colleagues.

    Ren said: "The competition in this space is very fierce

    This new microresonator is manufactured with germanium
    This material may sound peculiar, but it was used in the world's first transistors back in 1947, before silicon took over the transistor market

    We can compare
    the microresonator with the sound in the whisper gallery of St.
    Paul's Cathedral in London.

    Today, germanium is often used in the optical lenses of sensors and infrared cameras, so it is neither particularly rare nor expensive
    These are also advantages
    when theories are introduced to the market.

    What is a microresonator?

    A microresonator is an optical cavity that stores a high light field
    in a small volume.
    They can be made into trajectories or disk geometry, but they are usually microscale in size, similar to the thickness
    of a single hair.
    Light travels in circles within the microresonator, so the light field is amplified

    "We can compare
    the microresonator to the sound in the whispering gallery of St.
    Paul's Cathedral in London," Ren said.

    This elliptical gallery produced a famous phenomenon
    You can whisper at one end of the room and the person on the other end of the room can hear you, even though they usually can't hear you at this distance
    Sound waves are amplified by the shape of rooms and walls, and this is how light waves behave
    in microresonators.
    If you want to better understand this phenomenon, you can read the research article
    The link can be found
    at the bottom of the article.

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