Radiation trapping inside a hollow-core photonic crystal fiber

TL;DR

This paper investigates radiation trapping effects within a hollow-core photonic crystal fiber, demonstrating how it influences spectroscopic measurements and emphasizing the importance of considering this phenomenon in experimental setups.

Contribution

It provides both experimental and theoretical analysis of radiation trapping in a PCF, highlighting its significance for accurate spectroscopy.

Findings

Radiation trapping significantly affects light transmission in PCFs.

Experimental and theoretical results align in showing trapping effects.

Implications for improved spectroscopic accuracy in fiber-based systems.

Abstract

We report the radiation trapping effect inside a hollow-core photonic crystal fiber (PCF). An optical dipole trap was used to load and confine the atoms in the PCF without contacting the wall of the fiber. The transmission of a probe light propagating through the PCF was studied experimentally and theoretically. With the experimental results and theoretical predictions, we conclude that the radiation trapping can play a significant role and should be taken into account in the spectroscopic measurements inside the PCF.