An approach to control tuning range and speed in 1D ternary photonic band gap material nano-layered optical filter structures electro-optically

2016 ◽  
Author(s):  
Shahneel Zia ◽  
Anirudh Banerjee
Keyword(s):  
Band Gap ◽  
Tuning Range ◽  
Photonic Band Gap ◽  
Optical Filter ◽  
Photonic Band Gap Material ◽  
Filter Structures ◽  
Photonic Band

Design of an optical filter using photonic band gap material

Optik ◽  
2003 ◽  
Vol 114 (3) ◽  
pp. 101-105 ◽  
Author(s):  
S.P. Ojha ◽  
Sanjeev K. Srivastava ◽  
N. Kumar ◽  
S.K. Srivastava
Keyword(s):  
Band Gap ◽  
Photonic Band Gap ◽  
Optical Filter ◽  
Photonic Band Gap Material ◽  
Photonic Band

A Natural Humidity Sensitive Two-dimensional Tunable Photonic Band Gap Material and its Optic Properties

2009 ◽  
Vol 24 (1) ◽  
pp. 57-60 ◽  
Author(s):  
Wei-Gang ZHANG ◽  
Jun YAN ◽  
Gang WANG ◽  
Hao-Xuan LI ◽  
Gang-Sheng ZHANG
Keyword(s):  
Band Gap ◽  
Photonic Band Gap ◽  
Two Dimensional ◽  
Photonic Band Gap Material ◽  
Photonic Band

Development of 3D Ceramic Photonic Bandgap Structures

2007 ◽  
Vol 280-283 ◽  
pp. 533-536
Author(s):  
Hai Qing Yin ◽  
Soshu Kirihara ◽  
Yoshinari Miyamoto
Keyword(s):  
Band Gap ◽  
Photonic Bandgap ◽  
Photonic Band Gap ◽  
Three Dimensional ◽  
Cold Isostatic Pressing ◽  
Tio2 Powder ◽  
Lower Range ◽  
Photonic Band Gap Material ◽  
Photonic Bandgap Structures ◽  
Photonic Band

The three-dimensional (3D) photonic band gap material is a material that there exists a full photonic band gap in which waves are forbidden to propagate whatever the polarization or the direction of propagation. In order to obtain photonic bandgap in lower range, we focus on the fabrication of PBG materials of diamond structure with TiO2 powder mixed with SiO2. The inverse epoxy structure with periodic diamond lattices in millimeter order has been fabricated by stereolithographic rapid prototyping. TiO2 slurry was filled into the epoxy structure and then cold isostatic pressing was applied. After sintering at 700K for 5hrs, the epoxy was burnt out and the designed structure was maintained perfectly. The calculated band diagram shows that there exists an absolute photonic band gap for all wave vectors. The measurement of transmission from 10 to 20 GHz in <100> direction shows that a complete band gap is formed at about 14.7-18.5 GHz. The magnitude of the maximum attenuation is as large as 30 dB at 17 GHz.

Spontaneous emission inhibition from a driven four-level atom in a photonic band gap material

2007 ◽  
Vol 85 (9) ◽  
pp. 981-994
Author(s):  
H Zhang ◽  
G Q Liu ◽  
H Z Zhang
Keyword(s):  
Band Gap ◽  
Spontaneous Emission ◽  
Quantum Interference ◽  
Photonic Band Gap ◽  
Coupling Model ◽  
Interference Effects ◽  
Level Atom ◽  
Photonic Band Gap Material ◽  
First Time ◽  
Photonic Band

Two models (an upper levels coupling model and a lower levels coupling model) of a four-level atom embedded in a double-band photonic crystal are adopted. The effect of spontaneous emission cancellation of such systems embedded in different reservoirs are investigated. Especially, the "trapping conditions" of such systems in photonic band gap (PBG) reservoirs are discussed for the first time. We also investigate the different quantum interference effects of the lower levels coupling model embedded in an isotropic PBG reservoir. It is interesting that when the trapping conditions are fulfilled, the additional peaks, which result from the contribution of the additional singularities of Laplace transform of the delayed Green function of the isotropic PBG modes, are eliminated.PACS Nos.: 42.50.Gy, 42.50.Ct, 42.70.Qs

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