Controllable finite ultra-narrow quality-factor peak in a perturbed Dirac-cone band structure of a photonic-crystal slab
Abstract
We show that by using a perturbed photonic Dirac-cone, one can realize an ultra-narrow and finite Q-factor peak in the wavevector space, with both the peak value and the width separately tunable. We also discuss a lower bound in the minimal viable width given a peak Q-value while maintaining sufficient Q differentiation among modes. The strong angular and frequency Q-selection finds applications in optical devices where strong angle- and frequency-selections are needed.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Jul 19, 2021
- Source ID
- 10.1063/5.0056243
Entities
People
- Akhil Raj Kumar Kalapala
- Alex Y Song
- Cheng Guo
- Ganesh Balakrishnan
- Haiwen Wang
- Kevin James Reilly
- Ricky Gibson
- Robert Bedford
- Sadhvikas Addamane
- Shanhui Fan
- Thomas Rotter
- Weidong Zhou
Organizations
- Air Force Research Laboratory
- Stanford University
- United States Department of Defense
- University of New Mexico
- University of Texas at Arlington