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Testing the quality of optical surfaces can reveal defects and imperfections in optical surfaces. These imperfections can induce aberrations in optical systems. Consequently, identifying to what extent the ...

Gyroscopes are devices that measure rotational changes. On first mention, most people picture the beautifully rotating classical mechanical gyroscope. Although widely used till the late 1900s, optical ...

Introduction A single human hair is approximately 80,000-100,000 nanometers wide. Now, imagine a distance that measures several hundred times smaller than a human hair. Such small distances are often ...