Design of resonant cavity thin film structures with complex active layers
Document Type
Article
Publication Date
11-1-2020
Publication Source
Journal of the Optical Society of America B: Optical Physics
Abstract
A systematic approach to designing resonant cavity distributed Bragg reflector (DBR) structures with complex-index active regions is developed in this paper. The technique is based on the effective reflectance index of multilayer thin films. While the design of DBR structures with real refractive index films is quite straightforward, the use of a complex refractive index in the cavity requires a different approach. In this paper, we show that a complex active region requires an asymmetric reflector geometry along with a separate phase compensator. This technique is illustrated using phase change materials and metals in the resonant cavity.
Inclusive pages
3461-3468
ISBN/ISSN
0740-3224; 1520-8540
Publisher
Optica Publishing Group
Volume
37
Issue
11
eCommons Citation
Sarangan, Andrew M., "Design of resonant cavity thin film structures with complex active layers" (2020). Electro-Optics and Photonics Faculty Publications. 128.
https://ecommons.udayton.edu/eop_fac_pub/128
