High-Q 1D rod-based nanocavities

We report an analysis of one-dimensional rod-based photonic crystal nanocavities. These cavities offer opportunities for dielectric materials which lack a matching low-refractive index substrate or are limited in under-etching possibilities to create slab-based PhC cavities. They offer high theoreti...

Full description

Saved in:
Bibliographic Details
Published in:Optics letters 2021-09, Vol.46 (17), p.4260-4263
Main Authors: Timmerman, Dolf, Iwaya, Takenori, Fujiwara, Yasufumi
Format: Article
Language:English
Subjects:
Diameters
Dielectrics
Dimensional analysis
Photonic crystals
Refractivity
Substrates
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:We report an analysis of one-dimensional rod-based photonic crystal nanocavities. These cavities offer opportunities for dielectric materials which lack a matching low-refractive index substrate or are limited in under-etching possibilities to create slab-based PhC cavities. They offer high theoretical Q -values exceeding 10 6 for transverse magnetic polarized modes with modal volumes below 2.5 ( λ / n ) 3 . For practical implementations, we propose embedding these structures in a low-refractive index polymer. An analysis of intentionally introduced variations in a rod diameter reveals which design directions should be followed in order to create cavities that are most robust for fabrication-induced variations.
ISSN:0146-9592
1539-4794
DOI:10.1364/OL.434904