Optical precursors in a weakly dispersive double narrow-resonance dielectric

• Main Authors: Jeong, Heejeong, Lee, Chang Won, Dawes, Andrew M.C., Gauthier, Daniel J.
• Format: Article
• Published: Optical Society of America 2019
• Subjects: Q Science (General); QC Physics
• Online Access: http://eprints.um.edu.my/24139/; https://doi.org/10.1364/JOSAB.36.003282
• Institution: Universiti Malaya

We investigate optical precursors transmitted through a double-Lorentz dielectric consisting of two adjacent narrow resonances. Compared to the patterns in a single-Lorentz dielectric, the transmitted envelope shows additional modulation that oscillates at the separation frequency between two resonances, corresponding to the doublet frequency separation. We use the weakly dispersive, narrow-resonance condition to analyze it, which compares favorably to our observations. This work will be meaningful to identify dielectric properties by analyzing multi-resonant media for application of optical communication. © 2019 Optical Society of America