Title :
Observation of the influence of the gain on parity-time-symmetric properties of photonic molecules with coupled whispering gallery modes
Author :
Farzaneh Abolmaali;Nicholaos I. Limberopoulos;Augustine M. Urbas;Vasily N. Astratov
Author_Institution :
Department of Physics and Optical Science, Center for Optoelectronics and Optical Communications, University of North Carolina at Charlotte, Charlotte, NC 28223-0001, USA
fDate :
6/1/2015 12:00:00 AM
Abstract :
Parity-time (PT) symmetry breaking in coupled whispering gallery mode type resonators is studied by finite-difference time-domain modeling. Normal mode splitting is studied as a function of the coupling strength. It is demonstrated that in bi-atomic molecules with distributed gain and loss, reduction of the coupling beyond a certain value leads to PT symmetry breaking.
Keywords :
"Optical resonators","Optical coupling","Photonics","Optical scattering","Optical losses","Nonlinear optics","Optical reflection"
Conference_Titel :
Aerospace and Electronics Conference (NAECON), 2015 National
Electronic_ISBN :
2379-2027
DOI :
10.1109/NAECON.2015.7443047
