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Updated: May 16, 2026

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
Published on: February 25, 2017
Optical modes in oxide-apertured micropillar cavities
Cristian Bonato1, Jan Gudat, Keesjan de Vries
1Huygens Laboratory, Leiden University, P.O. Box 9504, RA Leiden 2300, The Netherlands. c.bonato@tudelft.nl
Abstract:
We present a detailed experimental characterization of the spectral and spatial structure of the confined optical modes for oxide-apertured micropillar cavities, showing good-quality Hermite-Gaussian profiles, easily mode-matched to external fields. We further derive a relation between the frequency splitting of the transverse modes and the expected Purcell factor. Finally, we describe a technique to retrieve the profile of the confining refractive index distribution from the spatial profiles of the modes.

