Thermal radiation is electromagnetic radiation generated by the thermal motion of particles in matter. Thermal radiation is generated when heat from the movement of charges in the material (electrons and protons in common forms of matter) is converted to electromagnetic radiation. All matter with a temperature greater than absolute zero emits thermal radiation. At room temperature, most of the emission is in the infrared (IR) spectrum. Particle motion results in charge-acceleration or dipole oscillation which produces electromagnetic radiation.
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A new technique for exploiting the random energy fluctuations present in empty space and biasing the fluctuations with an applied field has been demonstrated by scientists.
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Researchers in the US have put ultralow-noise lasers and photonic waveguides onto a single chip for the first time. This achievement could enable experiments with atomic clocks and other quantum technologies within a single integrated device.
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A combination of far-UVC and blue light can deactivate antibiotic-resistant bacteria.
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The immense processing power promised by quantum computers could prove invaluable for future medical physics applications.
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Researchers in China have shown how measurements of strain, temperature and vibration can be made simultaneously on a single optical fibre. This could be used to create a fibre-based system to monitor infrastructure such as buildings, bridges and railways.
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Researchers are developing a way to achieve higher doses and shorter treatment times for cancer patients undergoing proton therapy.
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Researchers have developed an algorithm that creates 3D objects that follow meandering paths as they roll downhill. Their technique could be used to develop new control protocols for quantum spins and the polarization of light.
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Independent researchers have found no evidence of room-temperature superconductivity in a modified form of lead apatite known as LK99, dashing hopes of a technological breakthrough.
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