Electronics

Photonically Inspired Electronics

Among the many recent developments in PT systems, the application of pseudo-
Hermitian ideas into the realm of electronic circuitry not only promises a new generation
of electronic structures and devices, but also provides a platform for detailed scrutiny of
many new concepts within a framework of easily accessible experimental conīŦgurations.
A first example of this was the demonstration in Ref. [1] that a pair of coupled LRC
circuits, one with amplification and the other with equivalent amount of attenuation,
provided the simplest experimental realization of a PT symmetric system. With a
normal mode structure where all dynamical variables are easily measured in the time
domain, extensions of the circuit approach will provide a valuable testing ground for
further developments into more sophisticated structures. Moreover, the PT -circuitry
approach suggested also opens new avenues for innovative electronics architectures for
signal manipulation from integrated circuits to antenna arrays, and allows for direct
contact with cutting edge technological problems appearing in (nano)-antenna theory,
split-ring resonator arrays, and meta-materials.

References

  1. Observation of Asymmetric Transport in Structures with Active Nonlinearities
    N. Bender, S. Factor, J. D. Bodyfelt, H. Ramezani, D. N. Christodoulides, F. M. Ellis, and T. Kottos
    Phys. Rev. Lett. 110, 234101 (2013)
  2. Experimental observation of the dual behavior of PT-symmetric scattering
    Zin Lin, Joseph Schindler, Fred M. Ellis, and Tsampikos Kottos
    Phys. Rev. A 85, 050101(R) (2012)
  3. Experimental study of active LRC circuits with PT symmetries
    Joseph Schindler, Ang Li, Mei C. Zheng, F. M. Ellis, and Tsampikos Kottos
    Phys. Rev. A 84, 040101 (2011)