scholarly journals Tuning of the Optical Properties in Photonic Crystals Made of Macroporous Silicon

2008 ◽  
Vol 2008 ◽  
pp. 1-12 ◽  
Author(s):  
Heinz-S. Kitzerow ◽  
Heinrich Matthias ◽  
Stefan L. Schweizer ◽  
Henry M. van Driel ◽  
Ralf B. Wehrspohn
Keyword(s):  
Photonic Crystals ◽  
Electrochemical Etching ◽  
Free Charge Carrier ◽  
Three Dimensional ◽  
Critical Discussion ◽  
Macroporous Silicon ◽  
Carrier Injection ◽  
Two Photon ◽  
Dielectric Liquids ◽  
Integrated Optical

It is well known that robust and reliable photonic crystal structures can be manufactured with very high precision by electrochemical etching of silicon wafers, which results in two- and three-dimensional photonic crystals made of macroporous silicon. However, tuning of the photonic properties is necessary in order to apply these promising structures in integrated optical devices. For this purpose, different effects have been studied, such as the infiltration with addressable dielectric liquids (liquid crystals), the utilization of Kerr-like nonlinearities of the silicon, or free-charge carrier injection by means of linear (one-photon) and nonlinear (two-photon) absorptions. The present article provides a review, critical discussion, and perspectives about state-of-the-art tuning capabilities.

Two-Photon Polymerization for Three-Dimensional Photonic Devices in Polymers and Nanocomposites

2007 ◽  
Vol 60 (7) ◽  
pp. 484 ◽  
Author(s):  
Baohua Jia ◽  
Jiafang Li ◽  
Min Gu
Keyword(s):  
Photonic Crystals ◽  
Light Propagation ◽  
Three Dimensional ◽  
Photonic Devices ◽  
Polymer Materials ◽  
Optical Elements ◽  
Two Photon ◽  
Integrated Optical ◽  
Nanocrystal Quantum Dots ◽  
Two Photon Polymerization

Fabrication of micro- or nano-scale photonic devices in polymer materials to control and manipulate light propagation represents a hot topic nowadays. Compared with conventional semiconductor materials, polymers are easy to prepare and have the flexibility of incorporating active materials to realise various functionalities. As one of the most powerful tools in micro-optical fabrication, the two-photon polymerization technique has been widely employed recently to produce multifarious photonic devices, particularly the photonic crystals, which are promising candidates for integrated optical devices. In this article the recent advances in the fabrication of three-dimensional photonic devices such as diffractive optical elements, photonic crystals, and superprisms in polymer materials using the two-photon polymerization technique are reviewed. In particular, the fabrication of photonic crystals in nanocomposite polymers, which are formed by incorporating nanocrystal quantum dots into polymer materials, is demonstrated, providing an interesting physical platform for the investigation into new types of active micro-devices.

An Exhaustive Analysis of the Characterization of Photopolymer Material (SZ2080) by Two-Photon Polymerization, Waves Moving in a Periodic Potential, and Two-Photon Absorption

2020 ◽  
Vol 1003 ◽  
pp. 165-172 ◽  
Author(s):  
Ritu Walia ◽  
Kamal Nain Chopra
Keyword(s):  
Photonic Crystals ◽  
Quantum Coherence ◽  
Periodic Potential ◽  
Three Dimensional ◽  
Photon Absorption ◽  
Two Photon Absorption ◽  
Two Photon ◽  
Polymerization Waves ◽  
Two Photon Polymerization

This paper presents an Exhaustive Analysis of the Characterization of Photopolymer Material (SZ2080) by Two-Photon Polymerization, and some of the modern concepts like Characterization of Photonic Crystals in Photopolymer SZ2080 by Two-Photon Polymerization, Waves Moving in a Periodic Potential, and Optical Quantum metamaterials. Two-photon polymerization for fabricating three-dimensional subdiffraction-limited structures has been discussed. Experimental and Computed Curves of line thickness (nm) vs feed rate (μm/s) have been technically analyzed. Waves moving in a Periodic Potential and Photonic Crystals have been technically discussed. In addition, Optical Quantum metamaterials have been discussed in terms of quantum coherence, and quantum dots with emphasis on cavity array metamaterial.

Self-Collimation in Square Lattice Two Dimensional Photonic Crystals with Ring-Shaped Holes

2011 ◽  
Vol 110-116 ◽  
pp. 1024-1029
Author(s):  
Quan Xu ◽  
Kang Xie ◽  
Hua Jun Yang
Keyword(s):  
Photonic Crystals ◽  
Fdtd Method ◽  
Three Dimensional ◽  
Square Lattice ◽  
Surface Modes ◽  
Input Surface ◽  
High Efficient ◽  
Integrated Optical ◽  
New Type ◽  
Efficient Coupling

We demonstrate self-collimation phenomena based on a new type of photonic crystals made of square lattice with ring shaped holes. The plane wave expansion (PWE) method is used to get the three dimensional band diagram and equi-frequency of the second band which displays the self-collimation phenomena for the structure we proposed in this paper. The collimation angle is mainly depending on the maximum flatness half width (MFHW) of the equi-frequency. The FDTD method is employed to demonstrate the electric field amplitude distributions for the collimation phenomena. Partly, in order to achieve high efficient coupling of the input and output port, we modify both surface structures to modulate the wave-front to obtain desired effect. The parameter of the input surface is modified which will prevent the production of surface modes which takes away the EM power and enhance the transmittance. For a square lattice with the modified parameters at each side of the input surface, the surface modes are suppressed to couple with the continuum of the dielectric waveguide modes. More importantly, they might have potential application in integrated optical circuits.

Two- and three-dimensional photonic crystals made of macroporous silicon and liquid crystals

2003 ◽  
Vol 83 (15) ◽  
pp. 3036-3038 ◽  
Author(s):  
Guido Mertens ◽  
Thorsten Röder ◽  
Heinrich Matthias ◽  
Heinrich Marsmann ◽  
Heinz-Siegfried R. Kitzerow ◽  
...  
Keyword(s):  
Liquid Crystals ◽  
Photonic Crystals ◽  
Three Dimensional ◽  
Macroporous Silicon

Three dimensional silicon photonic crystals fabricated by two photon phase mask lithography

2009 ◽  
Vol 94 (1) ◽  
pp. 011101 ◽  
Author(s):  
D. Shir ◽  
E. C. Nelson ◽  
Y. C. Chen ◽  
A. Brzezinski ◽  
H. Liao ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Three Dimensional ◽  
Phase Mask ◽  
Two Photon ◽  
Silicon Photonic

Three-dimensional photonic crystals containing designed defects achieved with two-photon photopolymerization

2009 ◽  
Vol 7 (2) ◽  
pp. 165-168
Author(s):  
周明 Ming Zhou ◽  
张伟 Wei Zhang ◽  
孔俊杰 Junjie Kong ◽  
杨海峰 Haifeng Yang ◽  
蔡兰 Lan Cai
Keyword(s):  
Photonic Crystals ◽  
Three Dimensional ◽  
Two Photon
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