Source: MDPI The Concept of Radiation-Balanced Lasers Radiation-balanced lasers, also known as athermal lasers, are a unique type of laser that aims to eliminate thermal issues typically associated with high-power lasers. Invented by Steven R. Bowman at the Naval Research Laboratory, these lasers operate on the principle of optical refrigeration to completely remove heat loads. […]
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Source: Signal Processing Stack Exchange Understanding Instantaneous Frequency Understanding Instantaneous Frequency Definition and Concept Instantaneous frequency is a concept used to describe non-monochromatic signals, defined as the temporal derivative of the oscillation phase. Unlike Fourier frequency, instantaneous frequency varies with time. For sinusoidal signals, the instantaneous frequency equals the oscillation frequency. Applications Instantaneous frequency is
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