Self-Shielded Topological Receiver Protectors

Editor's suggestion in Physical Review Applied

Merging concepts from topological photonics with that of self-induced violation of time-reversal symmetry due to nonlinear losses, the authors aim to design a receiver protectors (RP) that shields sensitive electronics from high-power radiation. The proposed RP is transparent to low-power incident signals, yet self-protected against electrical breakdown and overheating due to high-power input, which triggers an underdamping-to-overdamping transition enforcing a complete reflection of the incident radiation. Such a RP can be utilized to safeguard a broad range of sensitive communication systems, including radar and lidar installations and reflection altimeters.



Proposed implementation of a receiver-protector based on self-induced spontaneous symmetry breaking of a topological defect state in a radar system. The protector consists of a dimerised chain of weakly coupled dielectric resonators. The topologically protected states is induced by a defect in the regular spacings between resonators. Non-linear losses are introduced via a short-circuited Schottky diode positioned on top of the central defect.


Self-Shielded Topological Receiver Protectors

Mattis Reisner, Do Hyeok Jeon, Carsten Schindler, Henning Schomerus, Fabrice Mortessagne, Ulrich Kuhl, and Tsampikos Kottos

Phys. Rev. Applied 13, 034067 (2020)




Fabrice Mortessagne,


Partager cet article :