Presentation + Paper
13 March 2024 Unitary control of photonic absorption and emission
Author Affiliations +
Abstract
Unitary control changes the optical absorption and emission of an object by transforming the external modes. We answer two basic questions: Given an object, what absorptivity, emissivity, and their difference are attainable via unitary control? How to obtain given absorptivity, emissivity, and their difference? We show that both questions can be answered using the mathematics of majorization.
Conference Presentation
(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.
Cheng Guo and Shanhui Fan "Unitary control of photonic absorption and emission", Proc. SPIE 12902, Photonic Heat Engines: Science and Applications VI, 1290204 (13 March 2024); https://doi.org/10.1117/12.3004842
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KEYWORDS
Emissivity

Absorption

Light absorption

Matrices

Fluctuations and noise

Control systems

Design

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