Fundamental thermal fluctuations in microspheres

TL;DR

This paper investigates the fundamental thermorefractive thermal fluctuations in microspheres through theoretical modeling and experimental measurements, confirming the model's accuracy with observed noise spectra.

Contribution

It provides a combined theoretical and experimental analysis of thermorefractive fluctuations in microspheres, a novel investigation in this context.

Findings

Measured noise spectra match theoretical predictions

Thermal fluctuations are fundamental and intrinsic to microspheres

Theoretical model accurately describes thermorefractive noise

Abstract

We present theoretical analysis and the results of measurements of fundamental thermorefractive fluctuations in microspheres. Experimentally measured noise spectra are consistent with the theoretical model.