Third-order Self-action Effects in Photonic Microcavities

TL;DR

This paper investigates third-order nonlinear optical effects in photonic microcavities, highlighting significant light defocusing and polarization self-action effects that depend on radiation intensity, advancing understanding of nonlinear photonic phenomena.

Contribution

It reports the experimental observation of polarization self-action and light defocusing effects in microcavities, providing new insights into third-order nonlinear optical behaviors in these structures.

Findings

Significant light defocusing observed in microcavity spacer.

Detection of polarization self-action effect with intensity-dependent polarization rotation.

Nonlinear polarization rotation angle proportional to radiation intensity.

Abstract

Third-order nonlinear optical effects in photonic microcavities are studied. Significant light defocusing in the thin nonlinear microcavity spacer was observed. The polarization self-action effect was detected, when the large nonlinear polarization rotation angle arises when exciting the microcavity mode, being proportional to the radiation intensity.