Tunable passband in one-dimensional phononic crystal containing a piezoelectric 0.62Pb(Mg1/3Nb2/3)O3–0.38PbTiO3 single crystal defect layer

2014 ◽  
Vol 60 ◽  
pp. 37-41 ◽  
Author(s):  
Yuling Wang ◽  
Wei Song ◽  
Enwei Sun ◽  
Rui Zhang ◽  
Wenwu Cao
Keyword(s):  
Single Crystal ◽  
Phononic Crystal ◽  
Defect Layer ◽  
Crystal Defect ◽  
One Dimensional

PIEZOELECTRIC MATERIAL AND ONE-DIMENSIONAL PHONONIC CRYSTAL

2019 ◽  
Vol 26 (02) ◽  
pp. 1850144 ◽  
Author(s):  
ARAFA H. ALY ◽  
AHMED NAGATY ◽  
Z. KHALIFA
Keyword(s):  
Electric Field ◽  
Piezoelectric Material ◽  
Material Properties ◽  
Phononic Crystal ◽  
Defect Layer ◽  
Phononic Crystals ◽  
Localized Modes ◽  
One Dimensional ◽  
Energy Applications ◽  
Relative Change

We have theoretically obtained the transmittance properties of one-dimensional phononic crystals incorporating a piezoelectric material as a defect layer. We have used the transfer matrix method in our analysis with/without defect materials. By increasing the thickness of the defect layer, we obtained a sharp peak created within the bandgap, that indicates to the significance of defect layer thickness on the band structure. The localized modes and a particular intensity estimated within the bandgap depend on the piezoelectric material properties. By applying different quantities of an external electric field, the position of the peak shifts to different frequencies. The electric field induces a relative change in the piezoelectric thickness. Our structure may be very useful in some applications such as sensors, acoustic switches, and energy applications.

scholarly journals Investigation of the tunable laser of one-dimensional photonic crystal with dye-doped nematic liquid crystal defect layer

2012 ◽  
Vol 61 (11) ◽  
pp. 114211
Author(s):  
Liu Yong-Jun ◽  
Sun Wei-Min ◽  
Liu Xiao-Qi ◽  
Yao Li-Shuang ◽  
Lu Xing-Hai ◽  
...  
Keyword(s):  
Liquid Crystal ◽  
Photonic Crystal ◽  
Nematic Liquid Crystal ◽  
Tunable Laser ◽  
Defect Layer ◽  
Crystal Defect ◽  
One Dimensional ◽  
Dimensional Photonic Crystal

Radial and Azimuthal Polarizer Using a One-Dimensional Photonic Crystal with a Patterned Liquid Crystal Defect Layer

2010 ◽  
Vol 3 (6) ◽  
pp. 062002 ◽  
Author(s):  
Kenji Tagashira ◽  
Hiroyuki Yoshida ◽  
Hitoshi Kubo ◽  
Akihiko Fujii ◽  
Masanori Ozaki
Keyword(s):  
Liquid Crystal ◽  
Photonic Crystal ◽  
Defect Layer ◽  
Crystal Defect ◽  
One Dimensional ◽  
Dimensional Photonic Crystal

The Defect Modes Property Controlled by Temperature in One Dimensional Photonic Crystal with Liquid Crystal Defect Layer

2012 ◽  
Vol 586 ◽  
pp. 206-209 ◽  
Author(s):  
Xin Xing Yin ◽  
Ying Mao Xie ◽  
Hui Zhen Wang ◽  
Rui Lin Xiao
Keyword(s):  
Liquid Crystal ◽  
Photonic Crystal ◽  
Temperature Sensitivity ◽  
Defect Layer ◽  
Crystal Defect ◽  
Wavelength Shift ◽  
Temperature Property ◽  
Defect Modes ◽  
One Dimensional ◽  
Dimensional Photonic Crystal

The 5CB liquid crystal as defects will be introduced to one dimensional photonic crystal, taking advantage of temperature property of liquid crystal refractive index, the transmission spectrum of one dimensional liquid crystal defect photonic crystal defect modes was researched by the transfer matrix method(TMM). The numerical results indicated that when the temperature went up, one dimensional liquid crystal defect photonic crystal defect modes removed towards the long wavelength. When the temperature increased from 273k to 320k, the defect modes wavelength from 5121nm drifted to 5508nm, the wavelength shift was 387nm and the maximum of temperature sensitivity was 10.85nm/K, it was also observed that the temperature sensitivity decreased as the temperature increased.

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