• Sandeep K Agarwalla

Articles written in Pramana – Journal of Physics

• Cavity ring-down technique for measurement of reflectivity of high reflectivity mirrors with high accuracy

A simple, accurate and reliable method for measuring the reflectivity of laser-grade mirrors ($R$ &gt; 99.5%) based on cavity ring-down (CRD) technique has been success-fully demonstrated in our laboratory using a pulsed Nd:YAG laser. A fast photomultiplier tube with an oscilloscope was used to detect and analyse the CRD signal. The cavity decay times were measured for three cavities formed by a combination of three mirror pairs. The absolute reflectivities $R_{1}$, $R_{2}$, $R_{3}$ were determined to be 99.94%, 99.63%, 99.52% at normal incidence. The reflectivity of mirrors is measured to an accuracy of 0.01%.

• Pramana – Journal of Physics

Volume 95, 2021
All articles
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• Editorial Note on Continuous Article Publication

Posted on July 25, 2019