Fabrication of Three-Dimensional Photonic Band Gap Material by Deep X-Ray Lithography

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.

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

Journal of Inorganic Materials ◽

10.3724/sp.j.1077.2009.00057 ◽

2009 ◽

Vol 24 (1) ◽

pp. 57-60 ◽

Cited By ~ 4

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

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One dimensional photonic band gap material as an omnidirectional reflector

Indian Journal of Physics ◽

10.1007/s12648-011-0204-6 ◽

2011 ◽

Vol 85 (12) ◽

pp. 1811-1816 ◽

Cited By ~ 2

Author(s):

V. Kumar ◽

Kh S. Singh ◽

S. P. Ojha

Keyword(s):

Band Gap ◽

Photonic Band Gap ◽

One Dimensional ◽

Photonic Band Gap Material ◽

Photonic Band

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

Canadian Journal of Physics ◽

10.1139/p07-093 ◽

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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Phoamtonic designs yield sizeable 3D photonic band gaps

Proceedings of the National Academy of Sciences ◽

10.1073/pnas.1912730116 ◽

2019 ◽

Vol 116 (47) ◽

pp. 23480-23486 ◽

Cited By ~ 4

Author(s):

Michael A. Klatt ◽

Paul J. Steinhardt ◽

Salvatore Torquato

Keyword(s):

Band Gap ◽

Volume Fraction ◽

Photonic Band Gap ◽

Three Dimensional ◽

Band Gaps ◽

Photonic Band Gaps ◽

Photonic Networks ◽

Photonic Waveguides ◽

High Degree ◽

Photonic Band

We show that it is possible to construct foam-based heterostructures with complete photonic band gaps. Three-dimensional foams are promising candidates for the self-organization of large photonic networks with combinations of physical characteristics that may be useful for applications. The largest band gap found is based on 3D Weaire–Phelan foam, a structure that was originally introduced as a solution to the Kelvin problem of finding the 3D tessellation composed of equal-volume cells that has the least surface area. The photonic band gap has a maximal size of 16.9% (at a volume fraction of 21.6% for a dielectric contrast ε=13) and a high degree of isotropy, properties that are advantageous in designing photonic waveguides and circuits. We also present results for 2 other foam-based heterostructures based on Kelvin and C15 foams that have somewhat smaller but still significant band gaps.

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Electromagnetic properties of photonic crystals with diamond structure containing defects

Journal of Materials Research ◽

10.1557/jmr.2003.0309 ◽

2003 ◽

Vol 18 (9) ◽

pp. 2214-2220 ◽

Cited By ~ 5

Author(s):

Shingo Kanehira ◽

Soshu Kirihara ◽

Yoshinari Miyamoto ◽

Kazuaki Sakoda ◽

Mitsuo Wada Takeda

Keyword(s):

Photonic Crystals ◽

Band Gap ◽

Photonic Band Gap ◽

Three Dimensional ◽

Expansion Method ◽

Electromagnetic Properties ◽

Diamond Structure ◽

Multiple Reflections ◽

Air Cavity ◽

Photonic Band

Three-dimensional photonic crystals with a diamond structure, which are composed of the TiO2-based ceramic particles dispersed in an epoxy lattice, were fabricated by stereolithography. The diamond structure showed a photonic band gap in the 14.3–17.0 GHz range along the Γ-K 〈110〉 direction, which is close to the band calculation using the plain wave expansion method. Two types of lattice defects—air cavity and dielectric cavity—were introduced into the diamond structure by removing a unit cell of diamond structure or inserting a block of the lattice medium into the air cavity. The transmission of millimeter waves affected by multiple reflections at the defects was measured in the photonic band gap. Resonant frequencies in the defects were calculated and compared with the measurement results.

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Modulation of Three Dimensional Photonic Band Gap in Visible Region

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.31.20 ◽

2007 ◽

Vol 31 ◽

pp. 20-22 ◽

Cited By ~ 2

Author(s):

Y.P. Liu ◽

Y.P. Guo ◽

Z.J. Yan ◽

C.M. Huang ◽

Y.Y. Wang

Keyword(s):

Optical Properties ◽

Band Gap ◽

Photonic Band Gap ◽

Bragg Reflection ◽

Quartz Substrate ◽

Three Dimensional ◽

Visible Region ◽

Sphere Size ◽

Vertical Deposition Method ◽

Photonic Band

Three dimensional (3D) SiO2 photonic crystals films were fabricated on quartz substrate by vertical deposition method. The effects of various preparation parameters on optical properties were studied by optical transmission measurements. Bragg reflection on parallel sets of (111) planes were observed in all the samples. The center wavelength of [111] photonic band gap (PBG) varied from 450 nm to 680 nm with the increasing sphere size. For a given sphere size, the (111) Bragg reflection of as-deposited sample shifted towards lower wavelengths as the sintering temperature T increased. The role of evaporation temperature on the optical properties of the film was also investigated. The PBG can be correspondingly modulated in visible region by changing various preparation parameters.

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