Phase control of group velocity in one-dimensional photonic crystal with a dispersive defect layer

Optik ◽  
2013 ◽  
Vol 124 (18) ◽  
pp. 3305-3309 ◽  
Author(s):  
D. Jafari ◽  
M. Sahrai ◽  
H. Motavalli
Keyword(s):  
Photonic Crystal ◽  
Group Velocity ◽  
Defect Layer ◽  
Phase Control ◽  
One Dimensional ◽  
Dimensional Photonic Crystal

scholarly journals Slow light bimodal interferometry in one-dimensional photonic crystal waveguides

2021 ◽  
Vol 10 (1) ◽  
Author(s):  
Luis Torrijos-Morán ◽  
Amadeu Griol ◽  
Jaime García-Rupérez
Keyword(s):  
Photonic Crystal ◽  
Group Velocity ◽  
Communication Networks ◽  
Slow Light ◽  
Single Channel ◽  
Point Of Care ◽  
Semiconductor Industry ◽  
Optical Modulator ◽  
One Dimensional ◽  
Dimensional Photonic Crystal

AbstractStrongly influenced by the advances in the semiconductor industry, the miniaturization and integration of optical circuits into smaller devices has stimulated considerable research efforts in recent decades. Among other structures, integrated interferometers play a prominent role in the development of photonic devices for on-chip applications ranging from optical communication networks to point-of-care analysis instruments. However, it has been a long-standing challenge to design extremely short interferometer schemes, as long interaction lengths are typically required for a complete modulation transition. Several approaches, including novel materials or sophisticated configurations, have been proposed to overcome some of these size limitations but at the expense of increasing fabrication complexity and cost. Here, we demonstrate for the first time slow light bimodal interferometric behaviour in an integrated single-channel one-dimensional photonic crystal. The proposed structure supports two electromagnetic modes of the same polarization that exhibit a large group velocity difference. Specifically, an over 20-fold reduction in the higher-order-mode group velocity is experimentally shown on a straightforward all-dielectric bimodal structure, leading to a remarkable optical path reduction compared to other conventional interferometers. Moreover, we experimentally demonstrate the significant performance improvement provided by the proposed bimodal photonic crystal interferometer in the creation of an ultra-compact optical modulator and a highly sensitive photonic sensor.

Optical Properties of One-Dimensional Photonic Crystal Containing a Single Defect Layer with Negative Refractive Index

2011 ◽  
Vol 38 (10) ◽  
pp. 1006002
Author(s):  
董海霞 Dong Haixia ◽  
董丽娟 Dong Lijuan ◽  
杨成全 Yang Chengquan ◽  
石云龙 Shi Yunlong
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Photonic Crystal ◽  
Negative Refractive Index ◽  
Defect Layer ◽  
One Dimensional ◽  
Dimensional Photonic Crystal ◽  
Single Defect

scholarly journals Optical properties of one-dimensional photonic crystal with a twisted-nematic defect layer

2010 ◽  
Vol 18 (26) ◽  
pp. 26959 ◽  
Author(s):  
Yu-Ting Lin ◽  
Wen-Yang Chang ◽  
Chong-Yin Wu ◽  
Victor Ya. Zyryanov ◽  
Wei Lee
Keyword(s):  
Optical Properties ◽  
Photonic Crystal ◽  
Defect Layer ◽  
One Dimensional ◽  
Dimensional Photonic Crystal ◽  
Twisted Nematic
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