scholarly journals Group velocity and energy transport velocity near the band edge of a disordered coupled cavity waveguide: an analytical approach

2010 ◽  
Vol 27 (10) ◽  
pp. 2095 ◽  
Author(s):  
N. Le Thomas ◽  
R. Houdré
Keyword(s):  
Group Velocity ◽  
Analytical Approach ◽  
Energy Transport ◽  
Band Edge ◽  
Transport Velocity ◽  
Coupled Cavity ◽  
Coupled Cavity Waveguide

Characteristics of Slow Light in a Photonic Crystal Coupled-Cavity Waveguide

2014 ◽  
Vol 887-888 ◽  
pp. 437-441
Author(s):  
Chang Xin Zhang ◽  
Xing Sheng Xu ◽  
Wei Xi
Keyword(s):  
Photonic Crystal ◽  
Group Velocity ◽  
Time Domain ◽  
Finite Difference Time Domain ◽  
Slow Light ◽  
Fdtd Method ◽  
Photonic Crystal Waveguide ◽  
Difference Time ◽  
Coupled Cavity ◽  
Coupled Cavity Waveguide

A two-dimensional (2D) triangular lattice photonic crystal coupled-cavity waveguide is designed and optimized. The transmission spectrum of the PC waveguide with TE polarization is calculated by using the finite-difference time-domain (FDTD) method, and the group velocity of c/131.18 at the wavelength is obtained. Through optimizing the parameters of photonic crystal waveguide, different resonance length are obtained by changing the number of the continous air holes. The smallest group velocity is obtained to be c/2209 in the coupled-cavity waveguide with 15 air holes. The mechanism of slow light in the coupled-cavity waveguide of photonic crystal is analyzed.

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