Title :
Parity-time symmetry breaking and amplifier-absorber transitions in plasmonic nanoparticles
Author :
Estakhri, Nasim Mohammadi ; Alu, Andrea
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Texas at Austin, Austin, TX, USA
Abstract :
Abrupt transitions in the scattering response of parity-time (PT)-symmetric nanoparticles is discussed. Based on the closed-form analytical solution of a complex scattering problem, we show that material imbalance can generate strong absorbing or amplifying scattering states above PT threshold.
Keywords :
light scattering; nanoparticles; nanophotonics; optical materials; plasmonics; PT symmetric nanoparticles; absorbing scattering states; amplifier-absorber transitions; amplifying scattering states; closed-form analytical solution; complex scattering problem; material imbalance; parity-time symmetric nanoparticles; parity-time symmetry breaking; plasmonic nanoparticles; scattering response; Absorption; Nanoparticles; Optical devices; Optical imaging; Optical scattering; Plasmons;
Conference_Titel :
Lasers and Electro-Optics (CLEO), 2015 Conference on
Conference_Location :
San Jose, CA
