Asymmetric thermal emission
We present strategies for tuning the asymmetry factor of thermal emitters. We first analyze the constraints on thermal emissivity imposed by reciprocity. We then present strategies for tuning both lateral and normal asymmetry. We present device designs incorporating electrically tunable materials to toggle between symmetry and antisymmetric emissivity patterns.
Authors
- Alok Ghanekar (ORCID: https://orcid.org/0000-0002-8181-481X)
- Jayakanth Ravichandran (ORCID: https://orcid.org/0000-0001-5030-9143)
- Tien Hsing Wang
- Michelle L. Povinelli (ORCID: https://orcid.org/0009-0009-6570-6980)
- Bo K. Shrewsbury
- Silvia Guadagnini
- R. Yu (ORCID: https://orcid.org/0000-0002-1187-1368)
Institutions
- University of Southern California (US)
- University of Maryland, Baltimore County (US)
Publication Details
- Published
- 2025-09-16
- DOI
- https://doi.org/10.1117/12.3064938
- Primary Topic
- Thermography and Photoacoustic Techniques
- Type
- article
- Field-Weighted Citation Impact
- 0.00