Hybridization of circular and rectangular transverse profiles of nanophotonic modes for nonlinear optics
Abstract
Nanophotonic modes within rectangular cross sections are typically considered to have transverse rectangular field profiles. In this work, we show that, despite the rectangular cross section of most integrated waveguides and microring resonators, there exists considerable hybridization of transverse rectangular modes and transverse circular modes. These hybridized modes can be advantageous in nonlinear wave mixing processes. We use third-harmonic generation as an example to confirm that such a hybridized mode is advantageous in combining reasonable mode overlap and waveguide coupling to a fundamental mode in a silicon nitride microring. Our work illuminates the potential of using transverse circular modes in nanophotonic applications.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- May 21, 2021
- Source ID
- 10.1364/ol.426043
Entities
People
- Kartik Srinivasan
- Wei C. Jiang
- Xiyuan Lu
Organizations
- Defense Advanced Research Projects Agency
- National Institute of Standards and Technology
- University of Maryland