Resonant Frequency Separation Characteristics of the Same-Order Hermite-Gaussian Mode in the Astigmatic Triangular Cavity of a Cavity Ring-Down Spectroscope

Triangular planar ring resonant cavities are widely used in cavity ring-down spectroscopes (CRDS) because of the unique optical path advantage. Hermite-Gaussian theory is the classical method used to describe the beam in the resonant cavity. Since this theory can express the transverse electromagnet...

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