Two-photon polymerization of titanium-containing sol–gel composites for three-dimensional structure fabrication

Two-photon polymerization is a powerful technique in fabricating three dimensional sub-diffraction-limited structures. Recently, new sol-gel material, SZ2080, was introduced into two-photon polymerization and was proved to be better than the conventional materials for its negligible shrinkage. In this paper, two-photon polymerization was applied to generate woodpile structures, one kind of photonic crystal, using SZ2080. First, the relationship between scanning speed, laser power and resolution was determined through fabricating free-hanging lines. Based on this relationship, woodpile structures with different period distances were fabricated with high uniformity as shown by SEM images. Then optical properties of woodpile structures were investigated using Fourier Transform Infrared Spectroscopy (FTIR) and a quantitative relationship between band gap and period distance was established.

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Fabrication of Micro Three Dimensional Structures by Two Photon Polymerization with SiO/Resin

Advances in Science and Technology ◽

10.4028/www.scientific.net/ast.100.93 ◽

2016 ◽

Vol 100 ◽

pp. 93-99

Author(s):

Maria Guadalupe del Rocio Herrera Salazar ◽

Hiroyuki Akiyama ◽

Tadachika Nakayama ◽

Hisayuki Suematsu ◽

Koichi Niihara

Keyword(s):

Hybrid Material ◽

Optical Transmission ◽

Three Dimensional ◽

Polymerization Process ◽

Dimensional Structure ◽

Two Photon ◽

Digital Microscope ◽

Micrometer Scale ◽

Micro Structures ◽

Two Photon Polymerization

In this paper we presented the synthesis of TEOS with photoresist in order to use it like a hybrid material for 3D printer on the micrometer scale by means of the two-photon polymerization process, in which two photon are absorbed simultaneously by the material using an ultrafast laser causing its polymerization. We analyzed the mix of TEOS and photoresist with UV-VIS and FTIR spectrometers, checking that complies with two important conditions: has an optical transmission at 780 nm and absorbs at 390 nm. Finally we fabricated micro-structures with a new hybrid material; TEOS does not absorb the laser in this system and does not interfere with the formation of a three-dimensional structure. After formation the 3D microstructure, samples were heated to form the SiO. These samples of microstructures were observed under digital microscope and SEM.

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Two-Photon Polymerization of Hybrid Sol-Gel Materials for Photonics Applications

Laser Chemistry ◽

10.1155/2008/493059 ◽

2008 ◽

Vol 2008 ◽

pp. 1-7 ◽

Cited By ~ 38

Author(s):

A. Ovsianikov ◽

A. Gaidukeviciute ◽

B. N. Chichkov ◽

M. Oubaha ◽

B. D. MacCraith ◽

...

Keyword(s):

Nonlinear Optical ◽

Sol Gel ◽

Three Dimensional ◽

Promising Technique ◽

New Class ◽

Two Photon ◽

Near Ir ◽

Zirconium Alkoxide ◽

Nonlinear Optical Chromophore ◽

Two Photon Polymerization

Two-photon polymerization of photosensitive materials has emerged as a very promising technique for the fabrication of photonic crystals and devices. We present our investigations into the structuring by two-photon polymerization of a new class of photosensitive sol-gel composites exhibiting ultra-low shrinkage. We particularly focus on two composites, the first containing a zirconium alkoxide and the second a nonlinear optical chromophore. The three-dimensional photonic crystal structures fabricated using these materials demonstrate high resolution and clear bandstops in the near IR region.

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Sub-micron resolution three dimensional structure writing using two photon absorption process

10.1117/12.707943 ◽

2006 ◽

Author(s):

Zahidur R. Chowdhury ◽

Robert Fedosejevs

Keyword(s):

Three Dimensional ◽

Photon Absorption ◽

Dimensional Structure ◽

Absorption Process ◽

Three Dimensional Structure ◽

Two Photon Absorption ◽

Two Photon

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The Three-dimensional structure of frozen-hydrated nudaurelia capensis β virus

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100127682 ◽

1987 ◽

Vol 45 ◽

pp. 650-651

Author(s):

N. H. Olson ◽

T. S. Baker ◽

Wu Bo Mu ◽

J. E. Johnson ◽

D. A. Hendry

Keyword(s):

South African ◽

Rna Virus ◽

Carbon Film ◽

Three Dimensional ◽

Dimensional Structure ◽

Electron Dose ◽

Total Electron ◽

Three Dimensional Structure ◽

Negative Stain ◽

Dimensional Reconstruction

Nudaurelia capensis β virus (NβV) is an RNA virus of the South African Pine Emperor moth, Nudaurelia cytherea capensis (Lepidoptera: Saturniidae). The NβV capsid is a T = 4 icosahedron that contains 60T = 240 subunits of the coat protein (Mr = 61,000). A three-dimensional reconstruction of the NβV capsid was previously computed from visions embedded in negative stain suspended over holes in a carbon film. We have re-examined the three-dimensional structure of NβV, using cryo-microscopy to examine the native, unstained structure of the virion and to provide a initial phasing model for high-resolution x-ray crystallographic studiesNβV was purified and prepared for cryo-microscopy as described. Micrographs were recorded ∼1 - 2 μm underfocus at a magnification of 49,000X with a total electron dose of about 1800 e-/nm2.

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Three Dimensional structure and organization of diploid chromosomes by optical section microscopy

Proceedings, annual meeting, Electron Microscopy Society of America ◽

10.1017/s0424820100127608 ◽

1987 ◽

Vol 45 ◽

pp. 633-635

Author(s):

David A. Agard ◽

Yasushi Hiraoka ◽

John W. Sedat

Keyword(s):

Dimensional Space ◽

Three Dimensional ◽

Developmental State ◽

Mitotic Cell ◽

Biological Properties ◽

Dimensional Structure ◽

Specific Gene ◽

Three Dimensional Structure ◽

Complementary Techniques ◽

Dynamic Structures

In an effort to understand the complex relationship between structure and biological function within the nucleus, we have embarked on a program to examine the three-dimensional structure and organization of Drosophila melanogaster embryonic chromosomes. Our overall goal is to determine how DNA and proteins are organized into complex and highly dynamic structures (chromosomes) and how these chromosomes are arranged in three dimensional space within the cell nucleus. Futher, we hope to be able to correlate structual data with such fundamental biological properties as stage in the mitotic cell cycle, developmental state and transcription at specific gene loci.Towards this end, we have been developing methodologies for the three-dimensional analysis of non-crystalline biological specimens using optical and electron microscopy. We feel that the combination of these two complementary techniques allows an unprecedented look at the structural organization of cellular components ranging in size from 100A to 100 microns.

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