scholarly journals Investigation of coupling effect between a unidirectional air waveguide and two cavities with one-way rotating state

2020 ◽  
Vol 50 (1) ◽  
Author(s):  
Yongfeng Gao ◽  
Liu He ◽  
Zhen Jiang ◽  
Jun Zhou ◽  
Yuejia Shi ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Optical Communications ◽  
Coupling Effect ◽  
Dispersion Curves ◽  
Two Dimensional ◽  
Line Defect ◽  
Cavity Coupling ◽  
Resonance Coupling ◽  
Applied External Magnetic Field ◽  
Photonic Energy

In the paper we present an implementation of resonance coupling between a unidirectional air waveguide and two cavities with one-way rotating state in a two-dimensional dielectric photonic crystal and a magneto-optical photonic crystal. We theoretically calculate the dispersion curves of the line defect waveguide and the dispersion curves of waveguide-cavity interaction, respectively. Numerical simulations show that, via waveguide-cavity coupling, a series of interesting resonance phenomena can be generated in the system. By modifying direction of the applied external magnetic field, storing and discharging of photonic energy can be realized. Our work may provide a practical and useful guidance for optical communications.

Channel-Add Operation of a Device Using Defects in a Two-Dimensional Photonic Crystal Slab

2002 ◽  
Vol 722 ◽  
Author(s):  
Takashi Asano ◽  
Susumu Noda ◽  
Kazuaki Kiyota ◽  
Yoshinori Tanaka ◽  
Yoshihiro Akahane ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Point Defect ◽  
Point Defects ◽  
Free Space ◽  
Two Dimensional ◽  
Line Defect ◽  
Dimensional Photonic Crystal ◽  
Photonic Crystal Slab ◽  
Filtering Function ◽  
Two Dimensional Photonic Crystal

AbstractA channel add-filtering function of a device based on defects in a two dimensional photonic crystal slab is investigated in addition to a channel drop-filtering function reported previously. It is considered that photons irradiated to a point defect from free space are trapped by the point defect, are transferred to a line defect waveguide nearby, and are emitted from the waveguide edge. It is shown that the spectrum of the add-filtering function is almost same as that of the drop-filtering function, which demonstrates that photons can be not only dropped-from but also added-to a line-defect waveguide through the resonant trapping by point defects.

scholarly journals Investigation of the nonresonant dot-cavity coupling in two-dimensional photonic crystal nanocavities

2008 ◽  
Vol 77 (16) ◽  
Author(s):  
M. Kaniber ◽  
A. Laucht ◽  
A. Neumann ◽  
J. M. Villas-Bôas ◽  
M. Bichler ◽  
...  
Keyword(s):  
Photonic Crystal ◽  
Two Dimensional ◽  
Dimensional Photonic Crystal ◽  
Cavity Coupling ◽  
Two Dimensional Photonic Crystal
Sign in / Sign up

Export Citation Format

Share Document