Controlling the minimal feature sizes in adjoint optimization of nanophotonic devices using b-spline surfaces
Abstract
Adjoint optimization is an effective method in the inverse design of nanophotonic devices. In order to ensure the manufacturability, one would like to have control over the minimal feature sizes. Here we propose utilizing a level-set method based on b-spline surfaces in order to control the feature sizes. This approach is first used to design a wavelength demultiplexer. It is also used to implement a nanophotonic structure for artificial neural computing. In both cases, we show that the minimal feature sizes can be easily parameterized and controlled.
Document Details
- Document Type
- Pub Defense Publication
- Publication Date
- Feb 25, 2020
- Source ID
- 10.1364/oe.384438
Entities
People
- Erfan Khoram
- Ming Yuan
- Xiaoping Qian
- Zongfu Yu
Organizations
- Defense Advanced Research Projects Agency
- National Science Foundation