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Orthogonal Thermal Noise and Transmission Signals: A New Coherent Perfect Absorption's Feature.
Douglas Oña1, Angel Ortega-Gomez1, Osmery Hernández1
1Department of Electrical, Electronic, and Communications Engineering, Institute of Smart Cities (ISC), <a href="https://ror.org/02z0cah89">Public University of Navarre (UPNA)</a>, 31006 Pamplona, Spain.
Coherent perfect absorption (CPA) noise signals are orthogonal to transmitted signals. This discovery enables novel thermal noise management and externally lossless networks for advanced optical technologies.
Area of Science:
- Optics and Photonics
- Quantum Information Science
Background:
- Coherent perfect absorption (CPA) is an interference phenomenon crucial for optical computing, data processing, and sensing.
- The noise properties of CPA systems have not been extensively studied.
Purpose of the Study:
- To investigate the noise characteristics of coherent perfect absorption.
- To explore the implications of CPA noise properties for thermal management and network design.
Main Methods:
- Theoretical analysis of scattering matrix properties.
- Investigation of thermal noise signal behavior in CPA systems.
Main Results:
- CPA thermal noise signals demonstrate orthogonality to transmitted signals.
- This orthogonality allows for physical separation of noise and data signals.
- Development of "externally lossless" networks incorporating radiative heat transfer.
Conclusions:
- The unique noise properties of CPA offer new avenues for thermal noise management.
- Findings provide a fresh perspective on the development of CPA-based technologies.
- Potential applications in optical computing, data processing, and sensing are enhanced.
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