Active control of transmission and group velocity in one-dimensional photonic crystals

2013 ◽  
Vol 311 ◽  
pp. 83-89 ◽  
Author(s):  
H. Sattari ◽  
M. Sahrai
Keyword(s):  
Photonic Crystals ◽  
Group Velocity ◽  
Active Control ◽  
One Dimensional

Group-Velocity Anomaly Modes in Hybrid Bands of Photonic Crystals Made of Ferroelectrics

2016 ◽  
Vol 98 ◽  
pp. 109-114
Author(s):  
Mitsuo Wada Takeda ◽  
Akihiko Arikawa ◽  
Ryohei Araki ◽  
Yosuke Nakata ◽  
Fumiaki Miyamaru ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Group Velocity ◽  
Standing Wave ◽  
Time Domain ◽  
Wave Mode ◽  
Terahertz Time Domain Spectroscopy ◽  
One Dimensional ◽  
Velocity Anomaly ◽  
Contrast Group ◽  
Difference Time

In photonic crystals composed of ferroelectrics, the hybrid bands with corresponding to new additional band gaps are expected to appear around the Brillouin zone’s center and boundaries. In this hybrid bands, the group-velocity anomaly modes related to the phonon-polariton branches are expected to be discovered. Propagation characteristics of the group-velocity anomaly modes in the hybrid bands of one-dimensional photonic crystals fabricated by ferroelectric Li2Ge7O15 single crystals are discussed on the basis of finite element method and finite-difference time-domain numerical analyses and experimental results obtained by terahertz time-domain spectroscopy. It is founded that the electric-field intensity of the standing-wave mode at the end point of the dielectric band branch is found to be localized around all of the ferroelectrics plates in the photonic crystal. In contrast, group-velocity anomaly mode in the vicinity of the standing-wave mode is strongly localized around the first ferroelectrics plate on the incident side and decays as it propagates through the following ferroelectrics plates.

Effects of Disorder on Group Velocity in One-Dimensional Photonic Crystals

2003 ◽  
Vol 42 (Part 2, No. 2B) ◽  
pp. L163-L165 ◽  
Author(s):  
Xinhua Hu ◽  
Yonggang Xi ◽  
Yizhou Li ◽  
Chun Xu ◽  
Xin Wang ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Group Velocity ◽  
One Dimensional ◽  
Effects Of Disorder

TE Transmittance properties of one-dimensional symmetric quinary photonic crystals

2021 ◽  
Vol 68 (3) ◽  
pp. 125-133
Author(s):  
Hassan S. Ashour ◽  
Mazen M. Abadla ◽  
Khedr M. Abohassan
Keyword(s):  
Photonic Crystals ◽  
One Dimensional

scholarly journals One-dimensional ZnSe/ZnS/BK7 ternary planar photonic crystals as wide angle infrared reflectors

2021 ◽  
Vol 22 ◽  
pp. 103882
Author(s):  
Khedr M. Abohassan ◽  
Hassan S. Ashour ◽  
Mazen M. Abadla
Keyword(s):  
Photonic Crystals ◽  
Wide Angle ◽  
One Dimensional

Single Defect in Finite one Dimensional Photonic Crystals

2012 ◽  
Vol 614-615 ◽  
pp. 1629-1632
Author(s):  
Gang Xu ◽  
Yun Sun
Keyword(s):  
Photonic Crystals ◽  
Transmission Coefficient ◽  
Transfer Matrix Method ◽  
Matrix Method ◽  
Defect Mode ◽  
Transmission Peak ◽  
Reflection And Transmission ◽  
One Dimensional ◽  
Single Defect ◽  
Reflection And Transmission Coefficient

Applying transfer matrix method, we get reflection and transmission coefficient of finite one dimensional photonic crystals. At the same time, we consider the position influence of single defect. We find the frequency of defect mode is same, but the height of transmission peak is not same when single defect is in different position of crystal. The transmission peak is maximum when the defect is in center of finite one dimensional photonic crystals.

scholarly journals Light propagation in tunable exciton-polariton one-dimensional photonic crystals

2016 ◽  
Vol 94 (12) ◽  
Author(s):  
E. S. Sedov ◽  
E. D. Cherotchenko ◽  
S. M. Arakelian ◽  
A. V. Kavokin
Keyword(s):  
Photonic Crystals ◽  
Light Propagation ◽  
One Dimensional
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