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Adiabatic Thermal Radiation Pumps for Thermal Photonics.
Huanan Li1,2, Lucas J Fernández-Alcázar1, Fred Ellis1
1Wave Transport in Complex Systems Lab, Department of Physics, Wesleyan University, Middletown, Connecticut 06459, USA.
Physical Review Letters
|November 9, 2019
Summary
Scientists control thermal radiation direction and magnitude using adiabatic pumping. This method enhances directional energy transfer efficiency through wave interference in near-field heat transfer.
Area of Science:
- Thermodynamics
- Electromagnetism
- Quantum Physics
Background:
- Near-field radiative heat transfer is crucial for nanoscale thermal management.
- Controlling thermal radiation direction and magnitude is essential for energy efficiency.
- Wave interference plays a significant role in electromagnetic phenomena.
Purpose of the Study:
- To investigate the control of thermal radiation direction and magnitude between bodies at equal temperatures.
- To explore the application of adiabatic pumping in resonant near-field electromagnetic heat transfer.
- To understand the role of wave interference in enhancing directional energy transfer.
Main Methods:
- Utilizing the concept of adiabatic pumping.
- Applying an instantaneous scattering matrix approach within a resonant near-field electromagnetic heat transfer framework.
- Confirming results with a realistic electronic circuit setup.
Main Results:
- Adiabatic pumping allows control over the direction and magnitude of thermal radiation.
- Wave interference is critical for radiative heat transfer.
- Designed adiabatic pumping near diabolic singularities significantly enhances directional energy transfer efficiency.
Conclusions:
- Adiabatic pumping is a viable method for controlling thermal radiation.
- Wave interference is a key mechanism for efficient directional energy transfer.
- The findings have implications for advanced thermal management and energy transfer applications.
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