signal

Parity Time Symmetry: Unlocking Faster, More Powerful Optical Signal Processing

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Parity Time Symmetry: Unlocking Faster, More Powerful Optical Signal Processing

Linewidth and intensity enhancement operations based on odd-even time (PT) symmetry. a Above: Schematic diagram of wavelength conversion, in which strong continuous wave (CW) pump light is used to convert …

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China’s top-secret space shuttle is sending a powerful signal over North America, months after the United States shot down a Chinese spy balloon gathering intelligence from military sites

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China's top-secret space plane launched last week into orbit with five unidentified objects that are now sending powerful signals to Earth.Pictured is a shot of a space plane in orbit

China’s top-secret space shuttle launched into orbit last week is sending a strong message over North America. The spacecraft, called Shenlong, named after the dragon in Chinese mythology, released six …

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