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Laser spectroscopy is a technique that uses lasers to study the interaction of light with matter. Lasers provide intense, narrow-banded light sources that allow for highly precise measurements of atomic and molecular energy levels. This precision enables the study of phenomena like Doppler shifts, which are caused by the motion of atoms and molecules.12

By analyzing the wavelengths of light absorbed or emitted by a substance, scientists can determine its composition and structure. Laser spectroscopy has revolutionized this field, offering unprecedented sensitivity and resolution, allowing for the detection of even single atoms. This technique is vital in various scientific disciplines, from physics and chemistry to medicine and astronomy.34526

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